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Centrifugal Fans direct driven with scroll Issue 1.3 November 2012

Centrifugal Fans direct driven - Nicotra Gebhardt

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Page 1: Centrifugal Fans direct driven - Nicotra Gebhardt

2

Centrifugal Fans direct driven with scroll

Issue 1.3November 2012

Page 2: Centrifugal Fans direct driven - Nicotra Gebhardt

A

ηe = Pu(s) / Pe(d) · Cc

ηm ηT ηr

ηe

Pe(d) Pe Pu(s)

Cc

2013 58 58 61 37 42

2015 62 61 64 44 49

ηe = Pu(s) / Pe

Depending on the model of the fan, the efficiency grade “N” set in

accordance with the ErP Directive must be achieved from 2013 and

2015 respectively.

The efficiency grade designates a parameter in the calculation

of the target energy efficiency of a fan depending on the electric

input power when operating at the optimal energy efficiency point.

The figure of parameter “N” corresponds to the target energy

efficiency with a power of 10 kW.

To make the selection easier for our customers, we offer complete systems as defined by the ErP Directive!

In order to compare the systems, the total efficiency ηe of the fan

without speed regulation is considered.

If the system has speed regulation, it will be taken into account with

the “part load compensation factor” Cc (see below):

� without speed regulation: Cc = 1

� with speed regulation Ped ≥ 5 kW: Cc = 1.04

� with speed regulation Ped < 5 kW: Cc = -0.03 ln(Ped) + 1.088

In order to take the speed regulation into account via the part load

compensation factor Cc, the following mathematical losses arise

in accordance with the formula prescribed by ErP for the following

typical motor powers:

� Ped = 4.00 kW: Cc = 1.05 (5 %)

� Ped = 2.20 kW: Cc = 1.06 (6 %)

� Ped = 0.75 kW: Cc = 1.10 (10 %)

Efficiency grade “N” to ErP-Directive

Ped = Input power of speed regulator when oper-ating at the optimal energy efficiency point

Cc = part load compensation factor

Complete systems by Nicotra Gebhardt

Nicotra Gebhardt can supply complete systems in all product

categories which meet the ErP requirements. We offer highly efficient

fan systems

� with matching components and “high efficiency drives” –

belt and direct drive.

� with integrated or external control to regulate speed.

� with IEC standard motors (IE2) or internal rotor motors with

brushless DC technology.

� and with AC external rotor motors or brushless DC external

rotor motors.

Building blocks for best values

Thanks to the decades-long experience of Nicotra Gebhardt all the

components of our fans contribute to their high performance.

Impellers and blades are optimised for turbulence and therefore

particularly efficient. An example: With the latest development,

the RLM Evo impeller, the free-running centrifugal fans of

Nicotra Gebhardt achieve system efficiency grades never reached

before.

In addition, the brushless DC drives which Nicotra Gebhardt

offers for its direct drive fans improve the system efficiency grades.

The fan technology of Nicotra Gebhardt delivers highly efficient systems for all applications.

Year

Centrifugal fans with backward curved blades

without housingstatic

with housingstatic total

Centrifugal fans with forward curved blades

with housingstatic total

The overall picture will decide

ηe = Total efficiencyPu(s) = Fan gas power when operating at the optimal

energy efficiency pointPe = Electric input power when operating at the

optimal energy efficiency point

Page 3: Centrifugal Fans direct driven - Nicotra Gebhardt

B

6.00

0 m

³/h

10.0

00 m

³/h

18.0

00 m

³/h

35.0

00 m

³/h

100.

000

m³/

h

200.

000

m³/

h

40 °

C

60 °

C

80 °

C

ATE

X

DDM

DDM

BDD

RZA

RZP

RZM

TEM

/REM

P P P P P P

P P P P P P

P P P P P P P P

P P P P P P P P

≤ 0

280

P

≥ 0

315

P

P P P P P P P

P P P P P P P P P P P P P

≤ 1

000

P

≥ 1

120

P

P P P

RE

M: 2

2.00

0 m

³/h

P P P P

TEM

: P

RE

M: P

P P P

Flow rate Media temperature

Speed control

Impeller Casing material

Inlet type

Volta

ge

Bru

shle

ss-D

C

Ext

erna

l Inv

erte

r

Forw

ard

curv

ed b

lade

s ga

lvan

ised

she

et s

teel

Bac

kwar

d cu

rved

bl

ades

co

ated

ste

el

Gal

vani

sed

stee

l

Coa

ted

stee

l

Sin

gle

inle

t

Dou

ble

inle

t

ErP

sta

tus

Page 4: Centrifugal Fans direct driven - Nicotra Gebhardt

2

proSELECTA II

ErP

201

5E

rP 2

015

ErP

201

5E

rP 2

015 proSELECTA II is a technical selection program that allows you to

configure your own individually designed fan. It provides you with

the opportunity to choose from the entire range of fan types and

their associated options.

Simple and reliable selection

The result from proSELECTA II is the provision of all the technical

data for your fan, including sound level data, dimension

specifications and accessories. Apart from that, as a registered

user, your purchase prices are provided. Additionally fully

dimensioned drawings in dxf format are available, which can be

downloaded and transferred straight into your CAD system.

So that you can be sure. Models and options that are technically

not permissible, are automatically excluded in proSELECTA II.

So there is no chance that you will configure a “wrong” device

option.

You can register as a proSELECTA II user with us, which enables

us to offer you faster order processing. What this means for you is:

� The complete configuration of your fan with its associated system

accessories and belt drive layout.

� The possibility to produce fans that operate via a frequency

inverter.

� The option of saving your own fan configuration on our server.

� The opportunity to modify your saved configuration, even over the

phone to your Nicotra Gebhardt representative.

Nicotra Gebhardt technologies like ...

Automated manufacture of compact scroll and impeller with forward

curved blades

Own AC and Brushless-DC motor production

for optimal tuniung of motor and fan!

ErP

sta

tus

See

det

ails

See

det

ails

See

det

ails

Page 5: Centrifugal Fans direct driven - Nicotra Gebhardt

3

DDM

DDM

BDD

RZA

RZP

RZM

TEM

REM

Fitti

ngs

Acce

ssor

ies

Tech

nica

lDe

scrip

tion

High performance centrifugal fans DDMdouble width, double inlet, (DWDI), with built-in, optimised external rotor motor, made of galvanised sheet steel; available in various models; Impeller with forward curved blades of galvanised steel plate

High performance centrifugal fans DDMBdouble width, double inlet, (DWDI), with built-in, brushless DC external rotor motor and external commutation unit, made of galvanised sheet steel; available in various models; Impeller with forward curved blades of galvanised steel plate

High performance centrifugal fans DDdouble width, double inlet, (DWDI), built-in, optimised internal rotor motor, made of galvanised sheet steel; available in various models; Impeller with forward curved blades of galvanised steel plate

High performance centrifugal fans RZA rotaventdouble inlet, with built-in, low-slip external rotor motor, made of galvanised sheet steel or welded and coated, with multi position feet and connecting flange at discharge; Impeller with true aerofoil blades, welded and painted – system rotavent

High performance centrifugal fans RZP rotaventdouble inlet, with built-in, brushless DC external rotor motor and external commutation unit, made of galvanised sheet steel; with multi position feet and connecting flange at discharge; Impeller with true aerofoil blades, welded and painted – system rotavent

High performance centrifugal fans RZM rotaventdouble inlet, fan with directly coupled motor fitted on pedestal and base frame, made of galvanised sheet steel with heavy duty reinforced side frame, connecting flange at discharge, Impeller with true aerofoil blades, welded and painted – system rotavent

High performance centrifugal fans REM/TEMsingle inlet, with flanged IEC standard motor out of air stream, in unterschiedlichen Ausführungsvarianten, Impeller with true aerofoil blades, welded and painted (REM) or forward curved blades of galvanised steel plate (TEM), with or without pedestal for horizontal or vertical mounting

Fittings / Accessories� complete system accessories� fittings and options

Technical Description� Descriptions� Operating limits� Notes

Page 6: Centrifugal Fans direct driven - Nicotra Gebhardt

108

The best fan for your application!DD range – direct driven fans

Direct driven centrifugal fans of DD range with forward curved impeller directly moun-ted on the shaft of the internal rotor motor are the ideal solution for your applications in the HVAC business.The fact of manufacturing by ourselves each fan component – the casing, the impeller and motor – enables us to create fans that perfectly meet the requirements of high performances and low power consumptions.The wide range of different versions and motor types allows you to find the fan exactly matching what you really need.

You anyway get the generally recognized advantages of the direct drive technology :Maintenance free•No transmission losses•Long fan life time•High reliability•Low operating costs•

And, more, all the additional product advantages of the DD range are at your finger-tips.

Compact casing!Aerodynamically optimized in terms of both airflow and design, scrolls are made of galvanized steel and automatically assembled using an innovative procedure, provi-ding a sturdy and long-lasting product.

without welding points for no corrosion troubles•high precision manufacturing process for high quality product •

Real forward curved impeller!The impeller has been optimized for the best efficiency, match to the special motor features.We manufacture the high performance impellers through a highly – automated and innovative production process.

low noise level•low power consumption•

Optimized internal rotor motorThe fan impeller is directly mounted on the motorshaft thus providing efficient motor cooling by the fan airflow.Motor speed can be adjusted either by the use of transformers and TRIAC regulators.Motors are generally fitted with thermal protector for protection against overheating.

high reliability and efficiency•wide range of operative conditions•

Easy electrical connectionAll fans could be provided with connection box, terminal block or loose cable.A wiring diagram sticker, placed on each fan, describes the correct electrical connec-tion.

fast and easy wiring•safe operation•

Page 7: Centrifugal Fans direct driven - Nicotra Gebhardt

109

Program overview:DD range

This kind of fans are specially conceived for use in dust-free environments, at temperatures up to +40°C, or higher on selected models.The performance data have been obtained in a laboratory registered by AMCA for AMCA 210/99 air performance testing. Data are not certified by AMCA.

Fan range DD

Impeller size (width and diameter) up to 18“•Speed variation either by step-transformers or stepless•Internal rotor motor with intergrated thermal protector•

Fan models suitable for 60Hz supply are available•Air Flow up to 18,000m³/h•Static pressure up to 800Pa•

The variety of DDWe have the right fan for all your application!Many different sizes, versions and motor types are available in the DD range.

Version Description Figure

DDLap-jointed scroll made from galvanized steel and forward curved blades impeller, directly mounted on an internal rotor motor.

+SCT with terminal box mounted

+FL with discharge flange mounted

+SB with housing feet either mounted or loose

Page 8: Centrifugal Fans direct driven - Nicotra Gebhardt

110

DD-146/220Direct driven centrifugal fans / DD / Technical Data

Technical Data

0

Pa

m³/h

p sF

qV

59 dB100

DD 146/220 M048 1F 4P 3V RD +FL

230 V50 Hz

[A1]

2001000

58

55

61

60

59

62

59

57

57

63

59

0.8

0.6

0.4

0.2

A

I0

50

400300 6005000

Pa

m³/hp s

FqV

63 dB

50

DD 146/220 M048 1F 4P 3V RD +FL

230 V60 Hz

[A2]

2001000

65

52 61

48

59 62

53

62

57

1.0

0.5

A

I0

100

150

400300 600500

56

LWA7LWA7

[HI][ME][LO]

[HI]

[ME]

[LO]

Page 9: Centrifugal Fans direct driven - Nicotra Gebhardt

111

DD-146/220Direct driven centrifugal fans / DD / Technical Data

Technical DataSpeed control Curves

Nominal motor power Poles Phases Connection

Mains frequency

Max. power consumption

Max. current consumption Speed

DD 146/220 W – Hz W A 1/minM048 1F 4P 3V RD +FL * [A1/A2] 40 4 1~ 50/60 123 0.5 1280

Technical Data

Operating Capacitor

Nominal capacitor voltage

Motor protection class

Motor ther-mal class

Thermal protection

Media Temperature max. Fan weight

Density of media

Installation type (ISO 5801)

Article number

DD 146/220 μF V °C kg kg/m³M048 1F 4P 3V RD +FL 2 450 IP32 B INT 70 6 1.2 B 61090R

(1) = Speed controllable via Transformer(2) = Speed controllable via TRIAC or Transformer(3) = Speed controllable via Inverter * = No speed control available

[HI] High speed, [ME] Medium speed, [LO] Low speedAttention! We suggest to do not use the fan in the grey marked area! The noise ratings given in the performance curves are sound power level LWA7, see „Technical Description“.

Dimensions in mm, subject to change.

290

255

55 180 55

271

1.5100

204

114

223.

5

98

929

138 10

912

9

ø9.7

23.7

196.5195

296.2

17.59.59.5

500 0 +

50

DD 146/220 M048 1F 4P 3V RD +FL

Page 10: Centrifugal Fans direct driven - Nicotra Gebhardt

112

DD-185/176Direct driven centrifugal fans / DD / Technical Data

Technical Data

0

Pa

m³/h

p sF

qV

64 dB

50

DD 185/176 M023 1F 4P 3V +FL

230 V50 Hz

[B5]

4002000

58

55

60

52

57

63

A

I

100

150

200

8006000

Pa

m³/h

p sF

qV

65 dB

50

DD 185/176 M023 1F 4P 3V +FL

230 V60 Hz

[B6]

4002000

67

5354

56

6460

62

67

58 1.0

0.5

A

I0

100

150

600

53

200

250

300

1.0

0.5

0

0

Pa

m³/h

p sF

qV

50

DD 185/176 M020 1F 4P 1V +FL

230 V50 Hz

1000 1200 14000

A

I

100

150

200

0

Pa

m³/hp s

FqV

50

DD 185/176 M020 1F 4P 1V +FL

230 V60 Hz

400400 200200 0

1.0

0.5

A

I0

100

150

600600

200

250

300

1.0

0.5

0

2.0

1.52.0

1.5

1000800800

0

Pa

m³/h

p sF

qV

50

DD 185/176 M049 1F 4P 2V +FL

230 V50 Hz

A

I

100

150

200

1.0

0.5

0

2.0

1.5

4002000 600 10008000

Pa

m³/h

p sF

qV

50

DD 185/176 M049 1F 4P 2V +FL

230 V60 Hz

4002000

1.0

0.5

A

I0

100

150

600

200

250

300

2.0

1.5

1000800

52

52

64

54

51

54

54

64

6465

5050

70 dB

68

68

69

70

70

66

63

61

59

[B1] [B2]

70 dB

71

72

68

69

[B3]66 dB

66

66

68

69

7064

65

65

64

64

64

[B4]72

71

70 dB

69

68

68

67

65

63

62

140V 230V

LWA7 LWA7

LWA7LWA7

LWA7

LWA7

[HI][LO]

[HI]

[LO]

[HI][ME][LO]

[HI]

[ME]

[LO]

Page 11: Centrifugal Fans direct driven - Nicotra Gebhardt

113

DD-185/176Direct driven centrifugal fans / DD / Technical Data

Technical DataSpeed control Curves

Nominal motor power Poles Phases Connection

Mains frequency

Max. power consumption

Max. current consumption Speed

DD 185/176 W – Hz W A 1/minM020 1F 4P 1V +FL (2) [B1/B2] 92 4 1~ 50/60 369 1.6 1280M049 1F 4P 2V +FL * [B3/B4] 105 4 1~ 50/60 355 1.5 1300M023 1F 4P 3V +FL * [B5/B6] 45 4 1~ 50/60 186 0.7 1370

Technical Data

Operating Capacitor

Nominal capacitor voltage

Motor protection class

Motor ther-mal class

Thermal protection

Media Temperature max. Fan weight

Density of media

Installation type (ISO 5801)

Article number

DD 185/176 μF V °C kg kg/m³M020 1F 4P 1V +FL 4 450 IP20 B INT 60 5 1.2 B 6109Y8M049 1F 4P 2V +FL 4 450 IP32 B EXT 40 5 1.2 B 610974M023 1F 4P 3V +FL 4 450 IP32 B INT 50 6 1.2 B 610937

(1) = Speed controllable via Transformer(2) = Speed controllable via TRIAC or Transformer(3) = Speed controllable via Inverter * = No speed control available

[HI] High speed, [ME] Medium speed, [LO] Low speedAttention! We suggest to do not use the fan in the grey marked area! The noise ratings given in the performance curves are sound power level LWA7, see „Technical Description“.

Dimensions in mm, subject to change.DD 185/176 M020 1F 4P 1V +FL

DD 185/176 M049 1F 4P 2V +FL

DD 185/176 M023 1F 4P 3V +FL

1.5143.5

266

261 14

5.6

17

225245

155 13

5

210

115

205

39

266.5

1.5143.5

266

261 14

5.6

17

225245

155 135

210

115

205ø7

ø7

ø7

39

266.5

1.5143.5

266

261

145.

617

225245

155 13

5

210

115

205

39

266.5

Page 12: Centrifugal Fans direct driven - Nicotra Gebhardt

114

DD-185/240Direct driven centrifugal fans / DD / Technical Data

Technical Data

LWA7

0

Pa

m³/h

p sF

qV

81 dB

100

DD 185/240 M9Z3 1F 2P 1V +FL

230 V50 Hz

[C3]

10005000

75

77

73

74

81A

I

200

300

400

20001500

10

5

0

DD 185/240 M953 1F 2P 1V +FL

230 V50 Hz

DD 185/240 M947 3F 2P 1V +SCT

230/400 V60 Hz

66

66

8168

6581

72

81

82

80 dB

82

81

80

81

[C1]

[C6]

86 dB

86

86

86

86

100V140V

180V

230V

500

600

700

0

Pa

m³/h

p sF

qV

100

10005000

A

I

200

300

400

20001500

10

5

0

500

600

700

800

0

Pa

m³/h

p sF

qV

200

8004000

A

I

400

600

800

16001200 24002000

2.0

3.0

4.0

6.0

5.0

1.0

0

1000

81

81

81

81

82

LWA7

LWA7

DD 185/240 M947 3F 2P 1V +SCT

230/400 V50 Hz

[C5]

80 dB

85

84

83

80

870

Pa

m³/h

p sF

qV

8004000

200

400

16001200 24002000

600

800

LWA7

A

I

2.0

3.0

4.0

1.0

0400V

400V

Page 13: Centrifugal Fans direct driven - Nicotra Gebhardt

115

DD-185/240Direct driven centrifugal fans / DD / Technical Data

Technical DataSpeed control Curves

Nominal motor power Poles Phases Connection

Mains frequency

Max. power consumption

Max. current consumption Speed

DD 185/240 W – Hz W A 1/minM953 1F 2P 1V +FL * [C1] 1000 2 1~ 50 1804 7.6 2700M9Z3 1F 2P 1V +FL (2) [C3] 900 2 1~ 50 1725 7.1 2600M947 3F 2P 1V +SCT * [C5/C6] 750 2 3~ D/Y 50/60 2100 3.3 2900

Technical Data

Operating Capacitor

Nominal capacitor voltage

Motor protection class

Motor ther-mal class

Thermal protection

Media Temperature max. Fan weight

Density of media

Installation type (ISO 5801)

Article number

DD 185/240 μF V °C kg kg/m³M953 1F 2P 1V +FL 20 450 IP20 B INT 40 10 1.2 B 6109C7M9Z3 1F 2P 1V +FL 20 450 IP20 F INT 40 10 1.2 B 6109GHM947 3F 2P 1V +SCT IP20 F NO 40 8 1.2 B 610929

(1) = Speed controllable via Transformer(2) = Speed controllable via TRIAC or Transformer(3) = Speed controllable via Inverter * = No speed control available

[HI] High speed, [ME] Medium speed, [LO] Low speedAttention! We suggest to do not use the fan in the grey marked area! The noise ratings given in the performance curves are sound power level LWA7, see „Technical Description“.

Dimensions in mm, subject to change.DD 185/240 M953 1F 2P 1V +FL

DD 185/240 M9Z3 1F 2P 1V +FL

DD 185/240 M947 3F 2P 1V +SCT

2016

308

117

136

40

2016 276

257

10

30

230

20

230266

1

122

146

262

260

147.

5

70×45°230

70×45°

333

143276

29610 10

41

ø3.25

122

1.5

146

262

1627

8

142

746

80

200

9510

266.5

271

311

122

1.5

276 40

146

262

ø71627

8

142

115

155 13

510

10

746

80

266.5335

9510

10 291 10265

271311

276 40

ø711

5

155 13

510

10334

Page 14: Centrifugal Fans direct driven - Nicotra Gebhardt

116

DD-7/7Direct driven centrifugal fans / DD / Technical Data

Technical Data

0

Pa

m³/h

p sF

qV

72 dB

50

250

DD 7/7 M924 1F 4P 3V

230 V50 Hz

[D5]

10000

70

73

7069

71

62

68

3.0

2.0

1.0

A

I0

100

150

200

DD 7/7 M981 1F 4P 1V +SCT

230 V50 Hz

0

Pa

m³/h

p sF

qV

72 dB

50

200

DD 7/7 M924 1F 4P 3V

230 V60 Hz

[D6]

8004000

68

72

72

72

67

61

71

65

67

65

64

60

60

2.0

1.0

A

I0

100

150

250

3.0

62

66

7072

70

63

69

DD 7/7 M981 1F 4P 1V +SCT

230 V60 Hz

DD 7/7 M968 1F 4P 1V

230 V50 Hz

DD 7/7 M968 1F 4P 1V

230 V60 Hz

400 1600

300

350

600200 1000 1200 1400600200 800 1200 1400

68

69

67

LWA7 LWA7

0

Pa

m³/h

p sF

qV

70 dB

50

250

[D1]

10000

70

7271

69

70

65

66

3.0

2.0

1.0

A

I0

100

150

200

0

Pa

m³/hp s

FqV

69 dB

50

200

[D2]

8004000

68

69

71

72

65

58

69

6456

54

53

60

57

64

2.0

1.0

A

I0

100

150

250

3.0

62

61

5152

54

68

70 69

63

68

400 1600

300

350

600200 1000 1200600200 800 1200 1400

71

68

64

LWA7LWA7

100V 140V 180V 230V

0

Pa

m³/h

p sF

qV

50

250

[D3]

10000

70

69

70

65

66

3.0

2.0

1.0

A

I0

100

150

20069 dB

68

69

71

69

5654

53 62

70

63

400 1600600200 800 1200 1400

71

LWA7

100V 140V 180V

[HI][ME][LO]

230V

100V140V

180V

230V

70 dB

7271

0

Pa

m³/h

p sF

qV

50

200

[D4]

8004000

72

65

60

6457

64

2.0

1.0

A

I0

100

150

250

3.0

61

5152

54

68

69

68

300

350

600200 1000 1200

68

64

LWA7

100V140V

180V

230V

[HI][ME][LO]

Page 15: Centrifugal Fans direct driven - Nicotra Gebhardt

117

DD-7/7Direct driven centrifugal fans / DD / Technical Data

Technical DataSpeed control Curves

Nominal motor power Poles Phases Connection

Mains frequency

Max. power consumption

Max. current consumption Speed

DD 7/7 W – Hz W A 1/minM981 1F 4P 1V +SCT (2) [D1/D2] 147 4 1~ 50/60 415 1.7 1290M968 1F 4P 1V (2) [D3/D4] 147 4 1~ 50/60 422 1.7 1300M924 1F 4P 3V * [D5/D6] 147 4 1~ 50/60 456 2 1250

Technical Data

Operating Capacitor

Nominal capacitor voltage

Motor protection class

Motor ther-mal class

Thermal protection

Media Temperature max. Fan weight

Density of media

Installation type (ISO 5801)

Article number

DD 7/7 μF V °C kg kg/m³M981 1F 4P 1V +SCT 6.3 450 IP32 F INT 40 9 1.2 B 6109HEM968 1F 4P 1V 6.3 450 IP20 F INT 40 6 1.2 B 6106E7M924 1F 4P 3V 5 450 IP20 B INT 50 7 1.2 B 6M0678

(1) = Speed controllable via Transformer(2) = Speed controllable via TRIAC or Transformer(3) = Speed controllable via Inverter * = No speed control available

[HI] High speed, [ME] Medium speed, [LO] Low speedAttention! We suggest to do not use the fan in the grey marked area! The noise ratings given in the performance curves are sound power level LWA7, see „Technical Description“.

Dimensions in mm, subject to change.DD 7/7 M981 1F 4P 1V +SCT

DD 7/7 M968 1F 4P 1V

DD 7/7 M924 1F 4P 3V

153

186.

5

315.5

208.

632

5

135.

6

232288

56

16.5

58.5

8268

38270

153

186.

5

315.5

208.

632

5

135.

6

232

153

186.

5

315.5

208.

632

5

135.

6

232 66298

Page 16: Centrifugal Fans direct driven - Nicotra Gebhardt

118

DD-7/7Direct driven centrifugal fans / DD / Technical Data

Technical Data

0

Pa

m³/h

p sF

qV

71 dB

20

140

100

DD 7/7 M039 1F 6P 1V +SCT

230 V50 Hz

[D9]

7472

72

67

60

67

70

2.0

1.0

A

I0

40

60

80

120

10000

70

68

69

71

61

61

66

61

73

64

71

1.5

0.5

65

65

Pa

m³/h

p sF

qV

66 dB

DD 7/7 M967 1F 6P 3V

230 V50 Hz

[D11]

400200 800600 12001000 160014000

68

6456

56

65

60

68

2.0 1.5

1.0

0.5

A

I00

20

100

40

60

80

120

73

66

100V 100V140V 140V180V 180V230V 230V

69 dB

68

62

71

53

67

51

51

61

0

Pa

m³/h

p sF

qV

66 dB

20

40

60

80

DD 7/7 M039 1F 6P 1V +SCT

230 V60 Hz

[D10]

0

66

70

55

67

59

67

67 68

71

57

2.0

1.0

A

I0

100

120

140

160

180

1.5

64

69

69

72

0

Pa

p sF

20

DD 7/7 M967 1F 6P 3V

230 V60 Hz

[D12]64

58

58

5971

2.0

1.0

A

I0

100

40

60

80

120

140

160

180

64

62

65

m³/hqV

400 1600600200 800 1200 1400

0.5

69

63

LWA7

LWA7

LWA7

LWA7

0

Pa

m³/h

p sF

qV

63 dB

20

140

100

DD 7/7 M006 1F 6P 1V

230 V50 Hz

[D7]

2000

6562

61

61

2.0

1.0

A

I0

40

60

80

120

0

20

140

160

180

100

40

60

80

120

61

58

61

50

63

64

64

1.5

0.5

100V 140V 180V 230V

Pa

m³/hp s

FqV

61 dB

DD 7/7 M006 1F 6P 1V

230 V60 Hz

[D8]

1000 1200 14000

63

51

51

59

66

61

64

58

62

57

2.0

1.0

A

I0

1.5

59

59 63

400 600 800 1000 1200 1400

0.5

200 400 600 800

LWA7LWA7

400200 800600 12001000 160014000

[HI][ME][LO]

[HI]

[ME]

[LO]

1000400 1600600200 800 1200 1400

Page 17: Centrifugal Fans direct driven - Nicotra Gebhardt

119

DD-7/7Direct driven centrifugal fans / DD / Technical Data

Technical DataSpeed control Curves

Nominal motor power Poles Phases Connection

Mains frequency

Max. power consumption

Max. current consumption Speed

DD 7/7 W – Hz W A 1/minM006 1F 6P 1V (2) [D7/D8] 62 6 1~ 50/60 226 1 900M039 1F 6P 1V +SCT (2) [D9/D10] 147 6 1~ 50/60 282 1.3 860M967 1F 6P 3V * [D11/D12] 147 6 1~ 50/60 271 1.2 860

Technical Data

Operating Capacitor

Nominal capacitor voltage

Motor protection class

Motor ther-mal class

Thermal protection

Media Temperature max. Fan weight

Density of media

Installation type (ISO 5801)

Article number

DD 7/7 μF V °C kg kg/m³M006 1F 6P 1V 4 450 IP20 B INT 50 7 1.2 B 610303M039 1F 6P 1V +SCT 5 500 IP44 B INT 40 7 1.2 B 6109CGM967 1F 6P 3V 5 500 IP32 B INT 40 7 1.2 B 6106Z6

(1) = Speed controllable via Transformer(2) = Speed controllable via TRIAC or Transformer(3) = Speed controllable via Inverter * = No speed control available

[HI] High speed, [ME] Medium speed, [LO] Low speedAttention! We suggest to do not use the fan in the grey marked area! The noise ratings given in the performance curves are sound power level LWA7, see „Technical Description“.

Dimensions in mm, subject to change.DD 7/7 M006 1F 6P 1V

DD 7/7 M039 1F 6P 1V +SCT

DD 7/7 M967 1F 6P 3V

232 38270

153

186.

5

315.5

208.

632

5

135.

6

153

186.

5

315.5

208.

632

5

135.

6

232

16.5

42

68 82

38

29058

38270

153

186.

5

315.5

208.

632

5

135.

6

232

Page 18: Centrifugal Fans direct driven - Nicotra Gebhardt

120

DD-9/7Direct driven centrifugal fans / DD / Technical Data

Technical Data

0

Pa

m³/h

p sF

qV

74 dB

200

DD 9/7 M946 1F 4P 1V

230 V50 Hz

[E3]

200010000

73

72

76

72

59

66

69

72

75

55

71

72

67

66

53

4.0

2.0

A

I0

100

300

6.0

3.0

1.0

5.0

76

Pa

m³/h

p sF

qV

77 dB

DD 9/7 M922 1F 4P 1V

230 V50 Hz

[E1]

200010000

78

75

68

74

64

78

74

67

71

60

79

74

68

70

57

4.0

3.0

2.0

1.0

5.0A

I00

200

100

300

400 74

73 75

74

100V 140V 180V 230V

100V

140V

180V

230V

0

Pa

m³/h

p sF

qV

75 dB

100

400

DD 9/7 M946 1F 4P 1V

230 V60 Hz

[E4]

200010000

63

74

55

72

66

74

54

75

70

70

52

4.0

2.0

A

I0

200

300

500

6.0

64

69

74

100V

140V

180V

230V

0

Pa

p sF

77 dB

100

400

DD 9/7 M922 1F 4P 1V

230 V60 Hz[E2]

64

77

58

73

66

75

77

72

71

68

56

4.0

2.0

A

I0

200

300

500

6.0

64

78

77

100V

140V

180V

230V

m³/hqV

200010000

8.0

LWA7

LWA7

LWA7

LWA7

Pa

m³/h

p sF

qV

77 dB

DD 9/7 M942 1F 4P 3V

230 V50 Hz

[E5]

200010000

77

65

66

67

77

59

61

69

70

57

4.0

3.0

2.0

1.0

A

I00

300

200

100

77

73

76

74

0

Pa

m³/h

p sF

qV

77 dB

100

400

DD 9/7 M942 1F 4P 3V

230 V60 Hz

[E6]

200010000

68

76

66

75

76

71

65

57

4.0

2.0

A

I0

200

300

500

6.0

6461

64

67

76

LWA7LWA7

[HI][ME][LO]

[HI]

[ME]

[LO]

Page 19: Centrifugal Fans direct driven - Nicotra Gebhardt

121

DD-9/7Direct driven centrifugal fans / DD / Technical Data

Technical DataSpeed control Curves

Nominal motor power Poles Phases Connection

Mains frequency

Max. power consumption

Max. current consumption Speed

DD 9/7 W – Hz W A 1/minM922 1F 4P 1V (2) [E1/E2] 373 4 1~ 50/60 1047 5 1380M946 1F 4P 1V (2) [E3/E4] 300 4 1~ 50/60 811 3.5 1300M942 1F 4P 3V * [E5/E6] 420 4 1~ 50/60 902 3.9 1200

Technical Data

Operating Capacitor

Nominal capacitor voltage

Motor protection class

Motor ther-mal class

Thermal protection

Media Temperature max. Fan weight

Density of media

Installation type (ISO 5801)

Article number

DD 9/7 μF V °C kg kg/m³M922 1F 4P 1V 10 450 IP20 B INT 40 10 1.2 B 6M06E4M946 1F 4P 1V 10 500 IP20 B EXT 40 10 1.2 B 6M0671M942 1F 4P 3V 12.5 450 IP20 B EXT 40 10 1.2 B 6M0695

(1) = Speed controllable via Transformer(2) = Speed controllable via TRIAC or Transformer(3) = Speed controllable via Inverter * = No speed control available

[HI] High speed, [ME] Medium speed, [LO] Low speedAttention! We suggest to do not use the fan in the grey marked area! The noise ratings given in the performance curves are sound power level LWA7, see „Technical Description“.

Dimensions in mm, subject to change.

232185378.5

159.

621

5.5

262.

638

7

30068

232 57289378.5

185

159.

621

5.5

262.

638

7

232378.5

185

159.

621

5.5

262.

638

7

30068

DD 9/7 M922 1F 4P 1V

DD 9/7 M946 1F 4P 1V

DD 9/7 M942 1F 4P 3V

Page 20: Centrifugal Fans direct driven - Nicotra Gebhardt

122

DD-9/7Direct driven centrifugal fans / DD / Technical Data

Technical Data

0

Pa

m³/h

p sF

qV

66 dB

20

140

100

DD 9/7 M001 1F 6P 1V

230 V50 Hz

[E9]

20001000 15005000

70

65

71

71

63

63

69 dB[E10]

68

61

65

65

66

66 2.0

1.0

A

I0

40

60

80

160

180

120

1.5

0.5

0

Pa

m³/h

p sF

qV

69

20

140

100

DD 9/7 M951 1F 6P 1V +SCT

230 V50 Hz

[E7]

200010000

75

73

67

71 dB

4.0

2.0

A

I0

40

60

80

160

180

120

3.0

1.0

67

66

66

66

68

70

57

64

72

72

51 63 72 75100V 140V 180V 230V

LWA7

LWA7Pa

m³/h

p sF

qV

DD 9/7 M001 1F 6P 1V

230 V60 Hz

10000

3.0

2.0

1.0

0500 1500

LWA7

0

40

200

80

120

160

240

A

I

60

59

56

5752

52

55

100V 140V 180V 230V 100V 140V 180V 230V

68

62

69

69

67

64

69

57

6153

52

625446

4546

Page 21: Centrifugal Fans direct driven - Nicotra Gebhardt

123

DD-9/7Direct driven centrifugal fans / DD / Technical Data

Technical DataSpeed control Curves

Nominal motor power Poles Phases Connection

Mains frequency

Max. power consumption

Max. current consumption Speed

DD 9/7 W – Hz W A 1/minM951 1F 6P 1V +SCT (1) [E7] 245 6 1~ 50 454 2.1 850M001 1F 6P 1V (1) [E9/E10] 147 6 1~ 50/60 406 1.8 825

Technical Data

Operating Capacitor

Nominal capacitor voltage

Motor protection class

Motor ther-mal class

Thermal protection

Media Temperature max. Fan weight

Density of media

Installation type (ISO 5801)

Article number

DD 9/7 μF V °C kg kg/m³M951 1F 6P 1V +SCT 8 500 IP32 F INT 40 12 1.2 B 6M09HFM001 1F 6P 1V 5 500 IP20 F EXT 40 10 1.2 B 6M0306

(1) = Speed controllable via Transformer(2) = Speed controllable via TRIAC or Transformer(3) = Speed controllable via Inverter * = No speed control available

[HI] High speed, [ME] Medium speed, [LO] Low speedAttention! We suggest to do not use the fan in the grey marked area! The noise ratings given in the performance curves are sound power level LWA7, see „Technical Description“.

Dimensions in mm, subject to change.DD 9/7 M951 1F 6P 1V +SCT

DD 9/7 M001 1F 6P 1V

185378.5

215.

515

9.6

262.

638

7

232127 8229.5

71.5

28856

232378.5

185

159.

621

5.5

262.

638

7

47279

Page 22: Centrifugal Fans direct driven - Nicotra Gebhardt

124

DD-9/7Direct driven centrifugal fans / DD / Technical Data

Technical Data

Pa

m³/h

p sF

qV

68 dB

DD 9/7 M930 1F 6P 3V

230 V50 Hz

[E13]

66

68

53

63

60

60

70

56

62

62

59

52

65

4.0

3.0

2.0

1.0

0 0

Pa

m³/h

p sF

qV

68 dB

50

250

DD 9/7 M930 1F 6P 3V

230 V60 Hz

[E14]

69

6853

58

57

52 67

59

64

60

69

3.0

2.0

1.0

0

100

150

200

LWA7LWA7

A

I

A

I

Pa

m³/h

p sF

qV

70 dB

DD 9/7 M940 1F 6P 3V

230 V50 Hz

[E11]

200010000

68

73

75

75

76

67

69

72

71

71

65

67

68

67

65

4.0

3.0

2.0

1.0

A

I0 0

Pa

m³/hp s

FqV

70 dB

50

200

DD 9/7 M940 1F 6P 3V

230 V60 Hz

[E12]

200010000

68

72

72

72

67

66

72

65

67

65

63

60

61

4.0

2.0

A

I0

100

150

0

50

100

150

250

6.0

6166

67

72

LWA7 LWA7

[HI][ME][LO] [HI][ME][LO]

[HI][ME][LO] [HI][ME][LO]0

50

100

150

500 1000 1500 500 1000 15000 0

Page 23: Centrifugal Fans direct driven - Nicotra Gebhardt

125

DD-9/7Direct driven centrifugal fans / DD / Technical Data

Technical DataSpeed control Curves

Nominal motor power Poles Phases Connection

Mains frequency

Max. power consumption

Max. current consumption Speed

DD 9/7 W – Hz W A 1/minM940 1F 6P 3V * [E11/E12] 245 6 1~ 50/60 563 2.6 880M930 1F 6P 3V * [E13/E14] 147 6 1~ 50/60 386 1.7 900

Technical Data

Operating Capacitor

Nominal capacitor voltage

Motor protection class

Motor ther-mal class

Thermal protection

Media Temperature max. Fan weight

Density of media

Installation type (ISO 5801)

Article number

DD 9/7 μF V °C kg kg/m³M940 1F 6P 3V 8 500 IP20 F INT 40 10 1.2 B 6M0667M930 1F 6P 3V 6.3 500 IP20 B INT 40 11 1.2 B 6M06A3

(1) = Speed controllable via Transformer(2) = Speed controllable via TRIAC or Transformer(3) = Speed controllable via Inverter * = No speed control available

[HI] High speed, [ME] Medium speed, [LO] Low speedAttention! We suggest to do not use the fan in the grey marked area! The noise ratings given in the performance curves are sound power level LWA7, see „Technical Description“.

Dimensions in mm, subject to change.DD 9/7 M940 1F 6P 3V

DD 9/7 M930 1F 6P 3V

232185

159.

621

5.5

262.

638

7

378.547

279

185378.5

215.

526

2.6

387

159.

6

232 56288

Page 24: Centrifugal Fans direct driven - Nicotra Gebhardt

126

DD-9/9Direct driven centrifugal fans / DD / Technical Data

Technical DataDD 9/9 M922 1F 4P 1V

230 V50 Hz

Pa

p sF

m³/hqV

74 dB

DD 9/9 M946 1F 4P 1V

230 V50 Hz

[F3]

200010000

73

7471

71

6575

7164

53

52

52 66 70 75

A

I100V 140V 180V 230V100V

140V

180V

230V

74 dB

DD 9/9 M946 1F 4P 1V

230 V60 Hz

[F4]

73

73

72

69

68

68

70

71

74

64

61

5351

5262

0

Pa

m³/hp s

FqV

100

400

DD 9/9 M922 1F 4P 1V

230 V60 Hz

4.0

2.0

A

I0

200

300

0

100

200

300

0

100

200

300

500

6.0

4.0

2.0

0

6.0

4.0

2.0

0

6.0

0

Pa

m³/h

p sF

qV

100

400

200010000

4.0

2.0

A

I0

200

300

500

6.0

m³/hqV

200010000

A

I

3000 200010000

LWA7

LWA7

Pa

p sF

77 dB

[F1][F2]

76

73

79

7876

76

76

77

74

75

70

74

6759

63

70

100V140V

180V

230V

LWA7

76 dB

76

76

75

75

LWA7

m³/hqV

DD 9/9 M942 1F 4P 3V

230 V50 Hz

200010000

A

I

4.0

2.0

0

6.0

4.0

2.0

0

6.0

0

Pa

p sF

40

280

200

80

120

160

320

360

400

240

73 dB

[F5]

74

76

756657

57

59

66

65

65

LWA7Pa

m³/h

p sF

qV

DD 9/9 M942 1F 4P 3V

230 V60 Hz

A

I

2000100000

40

280

200

80

320

360

240

160

120

480

400

520

440

74 dB

[F6]75

73

74

6255

58

65

63

56

LWA7

[HI][ME][LO]

[HI]

[ME][LO]

Page 25: Centrifugal Fans direct driven - Nicotra Gebhardt

127

DD-9/9Direct driven centrifugal fans / DD / Technical Data

Technical DataSpeed control Curves

Nominal motor power Poles Phases Connection

Mains frequency

Max. power consumption

Max. current consumption Speed

DD 9/9 W – Hz W A 1/minM922 1F 4P 1V (2) [F1/F2] 373 4 1~ 50/60 1165 5.1 1380M946 1F 4P 1V (2) [F3/F4] 300 4 1~ 50/60 877 3.5 1300M942 1F 4P 3V * [F5/F6] 420 4 1~ 50/60 962 3.8 1200

Technical Data

Operating Capacitor

Nominal capacitor voltage

Motor protection class

Motor ther-mal class

Thermal protection

Media Temperature max. Fan weight

Density of media

Installation type (ISO 5801)

Article number

DD 9/9 μF V °C kg kg/m³M922 1F 4P 1V 10 450 IP20 F INT 40 13 1.2 B 6M0642M946 1F 4P 1V 10 500 IP20 B EXT 40 12 1.2 B 6M0661M942 1F 4P 3V 12.5 450 IP20 B EXT 40 14 1.2 B 6M0669

(1) = Speed controllable via Transformer(2) = Speed controllable via TRIAC or Transformer(3) = Speed controllable via Inverter * = No speed control available

[HI] High speed, [ME] Medium speed, [LO] Low speedAttention! We suggest to do not use the fan in the grey marked area! The noise ratings given in the performance curves are sound power level LWA7, see „Technical Description“.

Dimensions in mm, subject to change.DD 9/9 M922 1F 4P 1V

DD 9/9 M946 1F 4P 1V

DD 9/9 M942 1F 4P 3V

298185378.5

215.

515

9.6

262.

638

7

68366

298185378.5

159.

621

5.5

262.

638

7

56354

298

387

159.

6

262.

621

5.5

378.5185

36668

Page 26: Centrifugal Fans direct driven - Nicotra Gebhardt

128

DD-9/9Direct driven centrifugal fans / DD / Technical Data

Technical DataDD 9/9 M002 1F 6P 1V

230 V50 Hz

DD 9/9 M001 1F 6P 1V

230 V60 Hz

0

Pa

p sF

50

200

DD 9/9 M002 1F 6P 1V

230 V60 Hz

4.0

2.0

3.0

1.0

A

I0

100

150

0

50

100

150

250

m³/hqV

200010000

Pa

m³/h

p sF

qV

2000 25001000 1500500 250015005000

A

I

DD 9/9 M001 1F 6P 1V

230 V50 Hz

Pa

p sF

A

I

2.0

1.0

0

1.5

0.5

m³/hqV

20001000 1500500 15005000 10000

67 dB

[F11]65

64

68

69

69

69574747

5653

53

56

5963

63

64

65100V 140V 180V 230V

LWA7Pa

m³/h

p sF

qV

A

I

68 dB

[F12]

68

67

67

67

676563

61

63

6069

67

63

4952

56

100V 140V 180V 230V

LWA7

69

[F7]

6768

72 dB

74

76716462

6262

65

66

66

67

75

69

70

71

72

100V 140V 180V 230V

LWA7

74 dB

[F8]

74

73

74

74

74

LWA7

2.0

3.0

1.0

0

DD 9/9 M951 1F 6P 1V +SCT

230 V50 Hz

Pa

m³/h

p sF

qV

20001000 1500 25005000

A

I

70 dB[F9]

52

68

55 74

69

7368

6452

62

66

67

64

69

63

71

52

100V

140V

180V

230V

LWA7

2.0

3.0

1.0

0

3.0

2.0

1.0

0

67

0

50

100

150

0

50

100

150

0

50

100

150

200

250

Page 27: Centrifugal Fans direct driven - Nicotra Gebhardt

129

DD-9/9Direct driven centrifugal fans / DD / Technical Data

Technical DataSpeed control Curves

Nominal motor power Poles Phases Connection

Mains frequency

Max. power consumption

Max. current consumption Speed

DD 9/9 W – Hz W A 1/minM002 1F 6P 1V (1) [F7/F8] 245 6 1~ 50/60 549 2.6 850M951 1F 6P 1V +SCT (1) [F9] 245 6 1~ 50 483 2.1 850M001 1F 6P 1V (1) [F11/F12] 147 6 1~ 50/60 438 2 825

Technical Data

Operating Capacitor

Nominal capacitor voltage

Motor protection class

Motor ther-mal class

Thermal protection

Media Temperature max. Fan weight

Density of media

Installation type (ISO 5801)

Article number

DD 9/9 μF V °C kg kg/m³M002 1F 6P 1V 8 500 IP20 F INT 70 13 1.2 B 6M0698M951 1F 6P 1V +SCT 8 450 IP32 B INT 40 11 1.2 B 6M06G0M001 1F 6P 1V 5 500 IP20 F EXT 40 11 1.2 B 6M0308

(1) = Speed controllable via Transformer(2) = Speed controllable via TRIAC or Transformer(3) = Speed controllable via Inverter * = No speed control available

[HI] High speed, [ME] Medium speed, [LO] Low speedAttention! We suggest to do not use the fan in the grey marked area! The noise ratings given in the performance curves are sound power level LWA7, see „Technical Description“.

Dimensions in mm, subject to change.DD 9/9 M002 1F 6P 1V

DD 9/9 M951 1F 6P 1V +SCT

DD 9/9 M001 1F 6P 1V

298378.5

185

215.

526

2.6 15

9.6

387

35456

298378.5

185

215.

515

9.6

262.

638

7

34547

185378.5

29.5

71.5

159.

621

5.5

262.

638

7

127 82 298354

56

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DD-9/9Direct driven centrifugal fans / DD / Technical Data

Technical Data

DD 9/9 M930 1F 6P 3V

230 V60 Hz

m³/hqV

A

I

DD 9/9 M930 1F 6P 3V

230 V50 Hz

Pa

p sF

4.0

3.0

2.0

1.0

A

I0

m³/hqV

10000 500 1500 0

63 dB

[F15]

62

605045

49

54

57

62

LWA7

0

Pa

p sF

50

200

100

150

250

3.0

2.0

1.0

0

61

[F16]

63 dB

59

64

585045

50

54

62

4648

LWA7

DD 9/9 M940 1F 6P 3V

230 V50 Hz

0

Pa

p sF

50

200

DD 9/9 M940 1F 6P 3V

230 V60 Hz

A

I

100

150

250

m³/hqV

200010000

Pa

m³/h

p sF

qV

200010000

4.0

3.0

2.0

1.0

A

I0

3.0

2.0

1.0

0

71 dB

[F13]

68

74

75

756964

64

7065

69

77

65

LWA7

74 dB

[F14]

72

75

75

746864

63

63

69

69

69

LWA7

[HI][ME][LO] [HI][ME][LO]

[HI][ME][LO] [HI][ME][LO]

0

50

100

150

0

50

100

150

1000500 1500

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DD-9/9Direct driven centrifugal fans / DD / Technical Data

Technical DataSpeed control Curves

Nominal motor power Poles Phases Connection

Mains frequency

Max. power consumption

Max. current consumption Speed

DD 9/9 W – Hz W A 1/minM940 1F 6P 3V * [F13/F14] 245 6 1~ 50/60 605 2.5 880M930 1F 6P 3V * [F15/F16] 147 6 1~ 50/60 385 1.7 900

Technical Data

Operating Capacitor

Nominal capacitor voltage

Motor protection class

Motor ther-mal class

Thermal protection

Media Temperature max. Fan weight

Density of media

Installation type (ISO 5801)

Article number

DD 9/9 μF V °C kg kg/m³M940 1F 6P 3V 8 500 IP20 F INT 50 13 1.2 B 6M0662M930 1F 6P 3V 5 450 IP20 B INT 40 11 1.2 B 6M0664

(1) = Speed controllable via Transformer(2) = Speed controllable via TRIAC or Transformer(3) = Speed controllable via Inverter * = No speed control available

[HI] High speed, [ME] Medium speed, [LO] Low speedAttention! We suggest to do not use the fan in the grey marked area! The noise ratings given in the performance curves are sound power level LWA7, see „Technical Description“.

Dimensions in mm, subject to change.DD 9/9 M940 1F 6P 3V

DD 9/9 M930 1F 6P 3V

298378.5

185

159.

621

5.5

262.

638

7

56354

298378.5

185

159.

621

5.5

262.

638

7

47345

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DD-10/8Direct driven centrifugal fans / DD / Technical Data

Technical DataDD 10/8 M922 1F 4P 1V

230 V50 Hz

4.0

2.0

0

6.0

m³/hqV

A

I

200010000 30000

Pa

p sF

100

400

200

300

500

74 dB

[G1]75

74

74

75

75

70

68

71

73

72

72

71

6663

60

6558100V

140V

180V

230V

400V

LWA7

DD 10/8 M977 3F 4P 1V +SCT

230/400 V60 Hz

4.0

2.0

0

6.0

8.0

10.0

m³/hqV

A

I400020000 600030001000 5000

0

Pa

p sF

200

100

800

900

700

400

300

600

50087 dB

[G4]

81

84

87

88

89

88

LWA7

DD 10/8 M977 3F 4P 1V +SCT

230/400 V50 Hz

4.0

2.0

0

6.0

m³/hqV

A

I

200010000 3000 4000 50000

Pa

p sF

100

400

200

300

500

84 dB

[G3]

78

79

82

85

80

80

76

77 80

75

79

77

77

74 78

77

78180V 230V 280V 400V

LWA7

600

83

83

84

85

86

8187

85

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133

DD-10/8Direct driven centrifugal fans / DD / Technical Data

Technical DataSpeed control Curves

Nominal motor power Poles Phases Connection

Mains frequency

Max. power consumption

Max. current consumption Speed

DD 10/8 W – Hz W A 1/minM922 1F 4P 1V (2) [G1] 373 4 1~ 50 1163 4.8 1380M977 3F 4P 1V +SCT * [G3/G4] 1500 4 3~ D/Y 50/60 2509 4.7 1360

Technical Data

Operating Capacitor

Nominal capacitor voltage

Motor protection class

Motor ther-mal class

Thermal protection

Media Temperature max. Fan weight

Density of media

Installation type (ISO 5801)

Article number

DD 10/8 μF V °C kg kg/m³M922 1F 4P 1V 12.5 450 IP20 F INT 40 13 1.2 B 6M0652M977 3F 4P 1V +SCT IP20 B EXT 40 22 1.2 B 6M09Y3

(1) = Speed controllable via Transformer(2) = Speed controllable via TRIAC or Transformer(3) = Speed controllable via Inverter * = No speed control available

[HI] High speed, [ME] Medium speed, [LO] Low speedAttention! We suggest to do not use the fan in the grey marked area! The noise ratings given in the performance curves are sound power level LWA7, see „Technical Description“.

Dimensions in mm, subject to change.DD 10/8 M922 1F 4P 1V

DD 10/8 M977 3F 4P 1V +SCT

265424.5

203

249.

517

8.6

289.

644

3

55320

265203

424.550189

178.

624

9.5

289.

644

3

378113

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DD-10/8Direct driven centrifugal fans / DD / Technical Data

Technical Data

DD 10/8 M940 1F 6P 3V

230 V60 Hz

0

Pa

p sF

50

200

DD 10/8 M940 1F 6P 3V

230 V50 Hz

A

100

150

250

m³/hqV

200010000

3.0

2.0

1.0

0

69 dB

[G9]69

71

72

7163

58

65

66

67

67

65

62

59

LWA7

Pa

m³/h

p sF

qV

200010000

4.0

3.0

2.0

1.0

A

I00

50

300

200

100

150

350

250

71dB[G10]71

71

70

69

6156

62

64

66

68

63

60

57

LWA7

DD 10/8 M002 1F 6P 1V

230 V50 Hz

2.0

1.0

0

3.0

m³/hqV

A

I

200010000 250015005000

Pa

p sF

50

200

100

150

69 dB

[G7]

68

71 dB

72

71

7271

69

68

60

71

69

7169

72

59

58

6458100V 140V 180V 230V

LWA7

7065

DD 10/8 M002 1F 6P 1V

230 V60 Hz

4.0

3.0

1.0

2.0

0

m³/hqV

A

I

10005000 1500 20000

Pa

p sF

50

200

100

150

25071 dB

[G8]

70

71

71

70

70

63

56

60

67

65

64

6358

5048

5650100V 140V 180V 230V

LWA7

300

[HI]

[ME][LO]

[HI]

[ME][LO]

Page 33: Centrifugal Fans direct driven - Nicotra Gebhardt

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DD-10/8Direct driven centrifugal fans / DD / Technical Data

Technical DataSpeed control Curves

Nominal motor power Poles Phases Connection

Mains frequency

Max. power consumption

Max. current consumption Speed

DD 10/8 W – Hz W A 1/minM002 1F 6P 1V (1) [G5/G6] 245 6 1~ 50/60 591 2.6 850M940 1F 6P 3V * [G7/G8] 245 6 1~ 50/60 625 2.6 880

Technical Data

Operating Capacitor

Nominal capacitor voltage

Motor protection class

Motor ther-mal class

Thermal protection

Media Temperature max. Fan weight

Density of media

Installation type (ISO 5801)

Article number

DD 10/8 μF V °C kg kg/m³M002 1F 6P 1V 8 450 IP20 F INT 60 13 1.2 B 6M0312M940 1F 6P 3V 8 500 IP20 F INT 40 13 1.2 B 6M0648

(1) = Speed controllable via Transformer(2) = Speed controllable via TRIAC or Transformer(3) = Speed controllable via Inverter * = No speed control available

[HI] High speed, [ME] Medium speed, [LO] Low speedAttention! We suggest to do not use the fan in the grey marked area! The noise ratings given in the performance curves are sound power level LWA7, see „Technical Description“.

Dimensions in mm, subject to change.DD 10/8 M002 1F 6P 1V

DD 10/8 M940 1F 6P 3V

265424.5

203

178.

624

9.5

289.

644

3

31146

265424.5

203

249.

528

9.6 17

8.6

443

31146

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DD-10/10Direct driven centrifugal fans / DD / Technical Data

Technical Data

m³/hqV

DD 10/10 M9F5 1F 4P 1V +SCT

230 V50 Hz

2000 300010000

A

I0

Pa

p sF

100

400

200

300

500

4.0

2.0

0

6.0

8.0

75 dB[H1]

73

75

75

76

72

71

75

7474

70

6968

72

67

60

60

63

65

LWA7

100V

140V

180V

230V

DD 10/10 M922 1F 4P 1V

230 V50 Hz

m³/hqV

200010000

A

I

30000

Pa

p sF

100

400

200

300

500

4.0

2.0

0

6.0

74 dB

[H3]

73

73

73

72

69

64

58

61

62

69

69

65

70

71

72

73

75

100V

140V

180V

230V

LWA7

DD 10/10 M9P3 1F 4P 3V

230 V50 Hz

m³/hqV

6.0

4.0

2.0

A

02000 300010000

Pa

p sF

100

400

200

300

500

75 dB

[H5]74 74

74

74

73

6863

65

66

69

71

72

73

71

69

LWA7

I

[HI]

[ME]

[LO]

Page 35: Centrifugal Fans direct driven - Nicotra Gebhardt

137

DD-10/10Direct driven centrifugal fans / DD / Technical Data

Technical DataSpeed control Curves

Nominal motor power Poles Phases Connection

Mains frequency

Max. power consumption

Max. current consumption Speed

DD 10/10 W – Hz W A 1/minM9F5 1F 4P 1V +SCT (2) [H1] 550 4 1~ 50 1238 5.1 1200M922 1F 4P 1V (2) [H3] 373 4 1~ 50 1141 4.8 1380M9P3 1F 4P 3V * [H5] 550 4 1~ 50 1494 6.3 1370

Technical Data

Operating Capacitor

Nominal capacitor voltage

Motor protection class

Motor ther-mal class

Thermal protection

Media Temperature max. Fan weight

Density of media

Installation type (ISO 5801)

Article number

DD 10/10 μF V °C kg kg/m³M9F5 1F 4P 1V +SCT 16 500 IP44 F EXT 40 15 1.2 B 6M09CUM922 1F 4P 1V 12.5 450 IP20 F INT 40 15 1.2 B 6M0627M9P3 1F 4P 3V 16 450 IP20 F INT 40 15 1.2 B 6M061U

(1) = Speed controllable via Transformer(2) = Speed controllable via TRIAC or Transformer(3) = Speed controllable via Inverter * = No speed control available

[HI] High speed, [ME] Medium speed, [LO] Low speedAttention! We suggest to do not use the fan in the grey marked area! The noise ratings given in the performance curves are sound power level LWA7, see „Technical Description“.

Dimensions in mm, subject to change.DD 10/10 M9F5 1F 4P 1V +SCT

DD 10/10 M922 1F 4P 1V

DD 10/10 M9P3 1F 4P 3V

331 74405

153203

82

178.

624

9.5

289.

644

3

34.5

42

424.5

203424.5

249.

528

9.6 17

8.6

331 55386

443

331203424.5

178.

624

9.5

289.

644

3

73404

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DD-10/10Direct driven centrifugal fans / DD / Technical Data

Technical Data

m³/hqV

DD 10/10 M002 1F 6P 1V

230 V50 Hz

200010000

3.0

2.0

1.0

A

I0100V 140V 180V 230V 100V 140V 180V 230V0

Pa

p sF

68 dB

[H9]67

69

68

6864595554

56

73

5864

64

66

66

LWA7

DD 10/10 M002 1F 6P 1V

230 V60 Hz

0

Pa

m³/h

p sF

qV

4.0

3.0

2.0

1.0

A

I0

50

350

250

100

150

200

300

200010000

68

[H10]

69 dB

68

67

676155

53

55

47

48

63

60

60

61

LWA7

DD 10/10 M9A3 1F 6P 1V +SCT

230 V50 Hz

m³/hqV

A

I

Pa

p sF

0

40

200

80

120

160

240

200010000

3.0

2.0

1.0

0

66 dB

[H11]

65

66

6661

67

5541

4850

55

57

61

63

65

64

63

66

LWA7

100V140V

180V

230V

DD 10/10 M9F1 3F 4P 1V +SCT

230/400 V50 Hz

m³/hqV

A

I

Pa

p sF

100

200

300

400

500

600

00 70001000 2000 3000 4000 5000 6000

4.0

2.0

0

6.0

8.0

82 dB

[H7]78

80

84

86

88

LWA7

400V Y

50

250

100

150

200

Page 37: Centrifugal Fans direct driven - Nicotra Gebhardt

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DD-10/10Direct driven centrifugal fans / DD / Technical Data

Technical DataSpeed control Curves

Nominal motor power Poles Phases Connection

Mains frequency

Max. power consumption

Max. current consumption Speed

DD 10/10 W – Hz W A 1/minM9F1 3F 4P 1V +SCT (3) [H7] 1500 4 3~ D/Y 50/60 3616 5.6 1420M002 1F 6P 1V (1) [H9/H10] 245 6 1~ 50/60 643 2.8 850M9A3 1F 6P 1V +SCT (2) [H11] 245 6 1~ 50 551 2.6 830

Technical Data

Operating Capacitor

Nominal capacitor voltage

Motor protection class

Motor ther-mal class

Thermal protection

Media Temperature max. Fan weight

Density of media

Installation type (ISO 5801)

Article number

DD 10/10 μF V °C kg kg/m³M9F1 3F 4P 1V +SCT IP55 F NO 40 15 1.2 B 6109A9M002 1F 6P 1V 8 450 IP20 F INT 40 15 1.2 B 6M0314M9A3 1F 6P 1V +SCT 8 450 IP44 B INT 40 15 1.2 B 6M0687

(1) = Speed controllable via Transformer(2) = Speed controllable via TRIAC or Transformer(3) = Speed controllable via Inverter * = No speed control available

[HI] High speed, [ME] Medium speed, [LO] Low speedAttention! We suggest to do not use the fan in the grey marked area! The noise ratings given in the performance curves are sound power level LWA7, see „Technical Description“.

Dimensions in mm, subject to change.

DD 10/10 M002 1F 6P 1V

DD 10/10 M9A3 1F 6P 1V +SCT

331424.5

203

178.

624

9.5

289.

644

3

37746

331 58389

424.5203

153 82

178.

624

9.5

289.

644

3

34.5

76.5

DD 10/10 M9F1 3F 4P 1V +SCT

331 45416

424.5203

139 5052.5

249.

517

8.6

289.

644

3

Page 38: Centrifugal Fans direct driven - Nicotra Gebhardt

140

DD-10/10Direct driven centrifugal fans / DD / Technical Data

Technical Data

DD 10/10 M940 1F 6P 3V

230 V50 Hz

m³/hqV

A

I

Pa

p sF

0200010000

3.0

2.0

1.0

0

68 dB

[H15]

56

69

69

5568

62

57

63

65

64

62

60

67

LWA7

m³/hqV

DD 10/10 M940 1F 6P 3V

230 V60 Hz

2000100000

Pa

p sF

50

250

100

150

200

300

350

69 dB

[H16]

68

6865

6061

59

56

63

58

62 67

67

69

LWA7

DD 10/10 M958 1F 6P 3V

230 V60 Hz

0

Pa

m³/hp s

FqV

8.0

6.0

4.0

2.0

A

I0

50

350

250

100

150

200

300

2000 3000 400010000

74 dB

[H14]

76

76

75

70

72

696564

66

68

68

72

72

70

71

LWA7DD 10/10 M958 1F 6P 3V

230 V50 Hz

m³/hqV

200010000

A

I

3000 40000

Pa

p sF

50

200

100

150

250

4.0

2.0

0

6.0

72 dB[H13]

73

74

76

74

78

71

71

69

69 80

70

71

74

68

LWA7

4.0

3.0

2.0

1.0

A

I0

[HI][ME][LO]

[HI]

[ME][LO]

[HI]

[ME][LO]

[HI]

[ME]

[LO]

0

50

250

100

150

200

Page 39: Centrifugal Fans direct driven - Nicotra Gebhardt

141

DD-10/10Direct driven centrifugal fans / DD / Technical Data

Technical DataSpeed control Curves

Nominal motor power Poles Phases Connection

Mains frequency

Max. power consumption

Max. current consumption Speed

DD 10/10 W – Hz W A 1/minM958 1F 6P 3V * [H13/H14] 500 6 1~ 50/60 1155 5.7 930M940 1F 6P 3V * [H15/H16] 245 6 1~ 50/60 687 3 880

Technical Data

Operating Capacitor

Nominal capacitor voltage

Motor protection class

Motor ther-mal class

Thermal protection

Media Temperature max. Fan weight

Density of media

Installation type (ISO 5801)

Article number

DD 10/10 μF V °C kg kg/m³M958 1F 6P 3V 10 450 IP20 B INT 40 21 1.2 B 6M06Z5M940 1F 6P 3V 8 500 IP20 F INT 40 15 1.2 B 6M06Z4

(1) = Speed controllable via Transformer(2) = Speed controllable via TRIAC or Transformer(3) = Speed controllable via Inverter * = No speed control available

[HI] High speed, [ME] Medium speed, [LO] Low speedAttention! We suggest to do not use the fan in the grey marked area! The noise ratings given in the performance curves are sound power level LWA7, see „Technical Description“.

Dimensions in mm, subject to change.DD 10/10 M958 1F 6P 3V

DD 10/10 M940 1F 6P 3V

331424.5

203

178.

624

9.5

289.

644

3

40776

203424.5

249.

517

8.6

289.

644

3

331 46377

Page 40: Centrifugal Fans direct driven - Nicotra Gebhardt

142

DD-12/9Direct driven centrifugal fans / DD / Technical Data

Technical DataDD 12/9 1429F9 3F 4P 1V +FL +TEL +SCT

400 V50 Hz

m³/hqV

A

I

Pa

p sF

100

200

300

400

500

600

700

800

00 70001000 2000 3000 4000 5000 6000

4.0

2.0

0

6.0

8.0

84 dB[I1] 82

86

88

90

92

84

79

8278

78

80

81

83

81

7882

84

86

83

8887

180V

230V

300V

400V

LWA7

82 dB

DD 12/9 M9F1 3F 4P 1V +SCT

230/400 V50 Hz81

87

8485

m³/hqV

A

I

LWA7

0 1000 2000 3000 4000 5000 6000

[I3]

Pa

p sF

100

200

300

400

500

600

700

800

4.0

2.0

0

6.0

8.0

0

DD 12/9 M955 3F 4P 2V +SCT

400/400 V50 Hz

0

Pa

m³/h

p sF

qV

A

I

100

800

600

300

200

400

500

700[I5]

0 70001000 2000 3000 4000 5000 6000

4.0

2.0

0

6.0

8.0

81 dB

79

84

86

83

82

79

78

LWA7

400V

400V Y

400V Y

Page 41: Centrifugal Fans direct driven - Nicotra Gebhardt

143

DD-12/9Direct driven centrifugal fans / DD / Technical Data

Technical DataSpeed control Curves

Nominal motor power Poles Phases Connection

Mains frequency

Max. power consumption

Max. current consumption Speed

DD 12/9 W – Hz W A 1/min1429F9 3F 4P 1V +FL (1)/(3) [I1] 2200 4 3~ Y 50 4375 7 1390M9F1 3F 4P 1V +SCT (3) [I3/I4] 1500 4 3~ D/Y 50 3515 5.6 1420M955 3F 4P 2V +SCT (1) [I5] 1500 4 3~ 50 3489 5 1300

Technical Data

Operating Capacitor

Nominal capacitor voltage

Motor protection class

Motor ther-mal class

Thermal protection

Media Temperature max. Fan weight

Density of media

Installation type (ISO 5801)

Article number

DD 12/9 °C kg kg/m³1429F9 3F 4P 1V +FL IP55 F NO 40 38 1.2 B 6108P3M9F1 3F 4P 1V +SCT IP55 F NO 40 25 1.2 B 61092MM955 3F 4P 2V +SCT IP20 F EXT 40 30 1.2 B 61099N

(1) = Speed controllable via Transformer(2) = Speed controllable via TRIAC or Transformer(3) = Speed controllable via Inverter * = No speed control available

[HI] High speed, [ME] Medium speed, [LO] Low speedAttention! We suggest to do not use the fan in the grey marked area! The noise ratings given in the performance curves are sound power level LWA7, see „Technical Description“.

Dimensions in mm, subject to change.DD 12/9 1429F9 3F 4P 1V +FL +TEL +SCT

DD 12/9 M9F1 3F 4P 1V +SCT

DD 12/9 M955 3F 4P 2V +SCT

365169.5 169.5

390

182

182

ø9

309 96

433

2811×16

493.5233

82183

3124.8

4221

3.8

294.

534

1.8

521

99.5

390

31.5

4522

5

39038 66

309391

51

58230

490.5

214

81

294.

534

252

1

196 82

521

309 48357490.5

230

214

294.

534

2

Page 42: Centrifugal Fans direct driven - Nicotra Gebhardt

144

DD-12/9Direct driven centrifugal fans / DD / Technical Data

Technical Data

Pa

m³/h

p sF

qV

DD 12/9 M906 1F 6P 1V

230 V50 Hz

A

I100V 140V 180V 230V

DD 12/9 M906 1F 6P 1V

230 V60 Hz

0

Pa

m³/h

p sF

qV

100

400

A

I

200

300

500

0 1000 2000 3000 4000 5000 0 1000 2000 3000 4000

4.0

2.0

0

6.0

8.0

10.0

12.0

4.0

2.0

0

6.0

8.0

10.0

12.0

77 dB

[I9]

69

74

6866

66

74 79

73

75

78

80

75

7575

72

68

LWA7

Pa

m³/h

p sF

qV

DD 12/9 M959 1F 6P 1V

230 V50 Hz

A

I100V

140V

180V

230V

0 1000 2000 3000 4000 5000

4.0

2.0

0

6.0

8.0

10.0

78 dB

[I7]76

72

76

7064

64

65

7574

7472

76

69

77

69

72

81

7572

80

65

LWA7

Pa

m³/h

p sF

qV

DD 12/9 M9F0 1F 6P 3V

230 V50 Hz

A

I

0 1000 2000 3000 4000 5000

4.0

2.0

0

6.0

8.0

10.0

76 dB

[I11]

72

76

757373

78

80

75

7372

76

73

72

7171

72

LWA7

71 dB

[I10] 76

77

77

LWA7

DD 12/9 M959 1F 6P 1V

230 V60 Hz

0

Pa

m³/hp s

FqV

100

400

A

I

200

300

500

0 1000 2000 3000 4000

4.0

2.0

0

6.0

8.0

10.0

77 dB

[I8] 78

80

79

80

LWA7

DD 12/9 M9F0 1F 6P 3V

230 V60 Hz

0

Pa

m³/h

p sF

qV

100

400

A

I

200

300

500

0 1000 2000 3000 4000

4.0

2.0

0

6.0

8.0

10.0

71 dB[I12] 76

75

72

76

74

73 77

74

70

77

74

69

68

73

LWA7

[HI]

[ME]

[LO]

[HI]

[ME]

[LO]

0

100

200

300

0

100

200

300

0

100

200

300

Page 43: Centrifugal Fans direct driven - Nicotra Gebhardt

145

DD-12/9Direct driven centrifugal fans / DD / Technical Data

Technical DataSpeed control Curves

Nominal motor power Poles Phases Connection

Mains frequency

Max. power consumption

Max. current consumption Speed

DD 12/9 W – Hz W A 1/minM959 1F 6P 1V (2) [I7/I8] 736 6 1~ 50/60 1659 7.4 925M906 1F 6P 1V (2) [I9/I10] 590 6 1~ 50/60 1608 6.8 910M9F0 1F 6P 3V * [I11/I12] 736 6 1~ 50/60 1500 6.5 930

Technical Data

Operating Capacitor

Nominal capacitor voltage

Motor protection class

Motor ther-mal class

Thermal protection

Media Temperature max. Fan weight

Density of media

Installation type (ISO 5801)

Article number

DD 12/9 μF V °C kg kg/m³M959 1F 6P 1V 20 450 IP20 B INT 40 26 1.2 B 6M09HGM906 1F 6P 1V 16 450 IP20 B INT 40 25 1.2 B 6M06L4M9F0 1F 6P 3V 20 450 IP20 F EXT 40 25 1.2 B 6M06A6

(1) = Speed controllable via Transformer(2) = Speed controllable via TRIAC or Transformer(3) = Speed controllable via Inverter * = No speed control available

[HI] High speed, [ME] Medium speed, [LO] Low speedAttention! We suggest to do not use the fan in the grey marked area! The noise ratings given in the performance curves are sound power level LWA7, see „Technical Description“.

Dimensions in mm, subject to change.DD 12/9 M959 1F 6P 1V

DD 12/9 M906 1F 6P 1V

DD 12/9 M9F0 1F 6P 3V

309490.5

230

214

294.

534

252

1

39990

309230

213.

829

4.5

341.

852

1

490.590

399

309 90399490.5

230

214

294.

534

252

1

Page 44: Centrifugal Fans direct driven - Nicotra Gebhardt

146

DD-12/9Direct driven centrifugal fans / DD / Technical Data

Technical Data

DD 12/9 M954 3F 6P 2V +SCT

400/400 V50 Hz

m³/hqV

A

I

0 70001000 2000 3000 4000 5000 6000

2.0

1.0

0

3.0

4.0

79 dB[I17]

7573

81

79

78

73

72

7582

85

87

LWA7

DD 12/9 M939 3F 6P 1V +SCT

230/400 V50 Hz

m³/hqV

A

I

Pa

p sF

0 1000 2000 3000 4000 5000 6000

Pa

p sF

2.0

1.5

1.0

0.5

0

76

[I15]78

75

81 dB

82

LWA7

DD 12/9 M954 3F 6P 2V +SCT

400/400 V60 Hz

m³/hqV

A

I

0 70001000 2000 3000 4000 5000 6000

4.0

2.0

0

6.0

82 dB

[I18]78

74

78 88

78

74

86

77

77

85

76

LWA7

Pa

p sF

0

100

500

200

300

400

Pa

m³/h

p sF

qV

DD 12/9 M003 3F 6P 1V

230/400 V50 Hz

4.0

3.0

2.0

1.0

A

I0

DD 12/9 M003 3F 6P 1V

230/400 V60 Hz

180V 230V 280V 400V

400V

Pa

m³/hp s

FqV

4.0

3.0

1.0

2.0

A

I0

5.0

0 70001000 2000 3000 4000 5000 60000

100

400

200

300

82

[ I13]

[I14]

73

72

74

76

78

79

8076

75

74

73

72

70

69

70

70

70

76

78 dB

83

84

85807672

LWA7

0 1000 2000 3000 4000 5000

79 dB

75

81

77

78

82

LWA7

5.0

400V Y

[HI][LO] [HI][LO]0

100

200

300

0

100

200

300

0

100

200

300

400

500

Page 45: Centrifugal Fans direct driven - Nicotra Gebhardt

147

DD-12/9Direct driven centrifugal fans / DD / Technical Data

Technical DataSpeed control Curves

Nominal motor power Poles Phases Connection

Mains frequency

Max. power consumption

Max. current consumption Speed

DD 12/9 kW – Hz W A 1/minM003 3F 6P 1V (1) [I13/I14] 1100 6 3~ D/Y 50/60 2231 4.3 900M939 3F 6P 1V +SCT * [I15] 1300 6 3~ D/Y 50 1617 3.3 900M954 3F 6P 2V +SCT (2)/(3) [I17/I18] 1100 6 3~ D/Y 50/60 2128 4 920

Technical Data

Operating Capacitor

Nominal capacitor voltage

Motor protection class

Motor ther-mal class

Thermal protection

Media Temperature max. Fan weight

Density of media

Installation type (ISO 5801)

Article number

DD 12/9 °C kg kg/m³M003 3F 6P 1V IP20 B NO 40 25 1.2 B 6M0318M939 3F 6P 1V +SCT IP44 EXT 40 25 1.2 B 6M0656M954 3F 6P 2V +SCT IP20 F EXT 40 25 1.2 B 6109FT

(1) = Speed controllable via Transformer(2) = Speed controllable via TRIAC or Transformer(3) = Speed controllable via Inverter * = No speed control available

[HI] High speed, [ME] Medium speed, [LO] Low speedAttention! We suggest to do not use the fan in the grey marked area! The noise ratings given in the performance curves are sound power level LWA7, see „Technical Description“.

Dimensions in mm, subject to change.DD 12/9 M003 3F 6P 1V

DD 12/9 M939 3F 6P 1V +SCT

DD 12/9 M954 3F 6P 2V +SCT

309230490.5

214

294.

534

252

1

90399

309

490.5230223 50

214

294.

534

252

1

90399

309 50230

50223

490.5

214

294.

5

104.

5

342

521

375

Page 46: Centrifugal Fans direct driven - Nicotra Gebhardt

148

DD-12/12Direct driven centrifugal fans / DD / Technical Data

Technical DataDD 12/12 M955 3F 4P 2V +SCT

400 V50 Hz

m³/hqV

A

I

Pa

p sF

100

200

300

400

500

600

700

800

900

00 70001000 2000 3000 4000 5000 6000

4.0

2.0

0

6.0

8.0

81 dB

[J1]7980

82

84

85

77

78

78

79

8081

LWA7

180V

230V280V

400V

400V

69

68

69

73

74

73

73

73

76

76

7777

78

DD 12/12 M939 3F 6P 1V +SCT

230/400 V50 Hz

Pa

m³/h

p sF

qV

A

I

0 1000 2000 3000 4000 5000 6000

2.0

0

3.0

1.0

5.0

4.0

75 dB

[J3]

7678

73

LWA7

DD 12/12 M9G4 1F 6P 1V

230 V50 Hz

Pa

m³/h

p sF

qV

A

I

0 1000 2000 3000 4000 5000 60000

50

300

200

100

150

350

250

4.0

2.0

0

6.0

8.0

10.0

12.0

77 dB

[J5]73

71

76

76

75

75

79

68

59

62

70

100V

140V

180V

230V

LWA7

400V Y

[HI][LO]

0

50

300

400

200

100

150

350

250

Page 47: Centrifugal Fans direct driven - Nicotra Gebhardt

149

DD-12/12Direct driven centrifugal fans / DD / Technical Data

Technical DataSpeed control Curves

Nominal motor power Poles Phases Connection

Mains frequency

Max. power consumption

Max. current consumption Speed

DD 12/12 W – Hz W A 1/minM955 3F 4P 2V +SCT (1) [J1] 1500 4 3~ 50 3863 5.4 1300M939 3F 6P 1V +SCT * [J3] 1300 6 3~ D/Y 50 1534 3.2 900M9G4 1F 6P 1V (1) [J5] 1100 6 1~ 50 2132 10 940

Technical Data

Operating Capacitor

Nominal capacitor voltage

Motor protection class

Motor ther-mal class

Thermal protection

Media Temperature max. Fan weight

Density of media

Installation type (ISO 5801)

Article number

DD 12/12 μF V °C kg kg/m³M955 3F 4P 2V +SCT IP20 F EXT 40 29 1.2 B 61090PM939 3F 6P 1V +SCT IP44 B EXT 40 26 1.2 B 6M0677M9G4 1F 6P 1V 25 450 IP20 F EXT 40 28 1.2 B 61091A

(1) = Speed controllable via Transformer(2) = Speed controllable via TRIAC or Transformer(3) = Speed controllable via Inverter * = No speed control available

[HI] High speed, [ME] Medium speed, [LO] Low speedAttention! We suggest to do not use the fan in the grey marked area! The noise ratings given in the performance curves are sound power level LWA7, see „Technical Description“.

Dimensions in mm, subject to change.DD 12/12 M955 3F 4P 2V +SCT

DD 12/12 M939 3F 6P 1V +SCT

DD 12/12 M9G4 1F 6P 1V

490.5230

214

294.

534

252

1

395 48443

490.5230223 50

214

294.

534

252

1

395 90485

395 48443490.5

230

214

294.

534

252

1

Page 48: Centrifugal Fans direct driven - Nicotra Gebhardt

150

DD-12/12Direct driven centrifugal fans / DD / Technical Data

Technical DataDD 12/12 M959 1F 6P 1V

230 V50 Hz

DD 12/12 M959 1F 6P 1V

230 V60 Hz

A

I

m³/hqV

Pa

m³/h

p sF

qV

A

I

0 1000 2000 3000 4000 5000 60000

400

200

300

1004.0

2.0

0

6.0

8.0

10.0

75 dB

[J7]

77

78

71

6562

62

6268

70

74

73

73

74

100V140V

180V

230V

LWA7

p sF

Pa

100

200

300

400

500

600

00 1000 2000 3000 4000 5000

76 dB[J8]

76

76

76

69

71

6773

6254

100V

140V

180V

230V

LWA7

4.0

2.0

0

6.0

8.0

10.0

DD 12/12 M906 1F 6P 1V

230 V50 Hz

Pa

m³/h

p sF

qV

75 dB

DD 12/12 M906 1F 6P 1V

230 V60 Hz

[J10]

76

75

73

A

I

m³/hqV

A

I

LWA7

0 1000 2000 3000 4000 5000

Pa

p sF

4.0

2.0

0

6.0

8.0

10.0

12.0

73 dB

[J9]

74

72

75

75

696257

58

66

6470

70

70

6963

56

100V140V

180V

230V

LWA7

DD 12/12 M9F0 1F 6P 3V

230 V50 Hz

m³/hqV

A

I

0 1000 2000 3000 4000 5000

Pa

p sF

4.0

2.0

0

6.0

8.0

74 dB[J11]

74

72

70

75

70

71

73

78

77

70

70

70

73

73

LWA7DD 12/12 M9F0 1F 6P 3V

230 V60 Hz

m³/hqV

A

I

0 1000 2000 3000 4000 50000

Pa

p sF

100

200

400

500

300

4.0

2.0

0

6.0

8.073 dB[J12]

74

72

75

7570

70 70

69

LWA7

0 1000 2000 3000 4000

4.0

2.0

0

6.0

8.0

0

300

200

100

0

100

200

400

500

300

[HI]

[ME]

[LO]

[HI]

[ME]

[LO]

0

300

200

100

Page 49: Centrifugal Fans direct driven - Nicotra Gebhardt

151

DD-12/12Direct driven centrifugal fans / DD / Technical Data

Technical DataSpeed control Curves

Nominal motor power Poles Phases Connection

Mains frequency

Max. power consumption

Max. current consumption Speed

DD 12/12 W – Hz W A 1/minM959 1F 6P 1V (2) [J7/J8] 736 6 1~ 50/60 1878 7.6 925M906 1F 6P 1V (2) [J9/J10] 590 6 1~ 50/60 1600 6.9 910M9F0 1F 6P 3V * [J11/J12] 736 6 1~ 50/60 1500 6.4 930

Technical Data

Operating Capacitor

Nominal capacitor voltage

Motor protection class

Motor ther-mal class

Thermal protection

Media Temperature max. Fan weight

Density of media

Installation type (ISO 5801)

Article number

DD 12/12 μF V °C kg kg/m³M959 1F 6P 1V 20 450 IP20 B INT 40 26 1.2 B 6M0961M906 1F 6P 1V 16 450 IP20 B INT 40 26 1.2 B 6M06L2M9F0 1F 6P 3V 20 500 IP20 F EXT 40 27 1.2 B 6M06N8

(1) = Speed controllable via Transformer(2) = Speed controllable via TRIAC or Transformer(3) = Speed controllable via Inverter * = No speed control available

[HI] High speed, [ME] Medium speed, [LO] Low speedAttention! We suggest to do not use the fan in the grey marked area! The noise ratings given in the performance curves are sound power level LWA7, see „Technical Description“.

Dimensions in mm, subject to change.DD 12/12 M959 1F 6P 1V

DD 12/12 M906 1F 6P 1V

DD 12/12 M9F0 1F 6P 3V

395490.5

230

214

294.

534

252

1

48590

230

214

294.

534

252

1

490.5395

48590

395230490.5

214

294.

534

252

1

90485

Page 50: Centrifugal Fans direct driven - Nicotra Gebhardt

152

DD-12/12Direct driven centrifugal fans / DD / Technical Data

Technical Data

m³/hqV

DD 12/12 M954 3F 6P 2V +SCT

400/400 V50 Hz

A

I

DD 12/12 M9M4 3F 6P 2V +SCT

400/400 V50 Hz

DD 12/12 M954 3F 6P 2V +SCT

400/400 V60 Hz

DD 12/12 M9M4 3F 6P 2V +SCT

440/440 V60 Hz

Pa

m³/h

p sF

qV

A

I

Pa

m³/h

p sF

qV

A

I

0 7000 80001000 2000 3000 4000 5000 6000

Pa

p sF

0

100

300

400

200 4.0

2.0

0

6.0

79 dB

[J15]73

76

82

83

70

71

72

73

8574

LWA7

0 70001000 2000 3000 4000 5000 60000

100

300

400

500

600

200 4.0

2.0

0

6.0

8.0

81

[J16]76

79 dB

82

82

83

69

69

71

69

LWA7

[J17]

0

200

100

300

400

0 70001000 2000 3000 4000 5000 6000

4.0

2.0

0

6.0

78 dB

76

7573

80

83

7872

66

65

66

70

71

72

71

72

72

75

180V230V

280V

400V

LWA7

m³/hqV

A

I

0 70001000 2000 3000 4000 5000 6000

4.0

2.0

0

6.0

8.0

Pa

p sF

0

100

300

400

500

200

77 dB

[J18]79

80

81

68

67

67

LWA7

70

70

69

69

69

400V Y

Y

74

180V 230V 280V 400V

400V

DD 12/12 M003 3F 6P 1V

230/400 V50 Hz

4.0

3.0

1.0

5.0

2.0

0

m³/h

A

I0

Pa

p sF

400

200

300

0 70001000 2000 3000 4000 5000 6000

78

[J13]

69

69

74

76 dB

7677

78

81

83

7875

73

75

71

70 75 78

72

72

LWA7

100

DD 12/12 M003 3F 6P 1V

230/400 V60 Hz

m³/hqV

p sF

0 1000 2000 3000 4000 5000 6000

Pa

100

200

300

400

500

600

0

4.0

4.0

2.0

1.0

0

5.0A

I

77

[J14]75 76 dB

79

81

82

LWA7

440V

440V Y

[HI][LO] [HI][LO]

[HI]

[LO]

70

Page 51: Centrifugal Fans direct driven - Nicotra Gebhardt

153

DD-12/12Direct driven centrifugal fans / DD / Technical Data

Technical DataSpeed control Curves

Nominal motor power Poles Phases Connection

Mains frequency

Max. power consumption

Max. current consumption Speed

DD 12/12 W – Hz W A 1/minM003 3F 6P 1V (1) [J13/J14] 1100 6 3~ D/Y 50/60 2455 4.3 900M954 3F 6P 2V +SCT (2)/(3) [J15/J16] 1100 6 3~ D/Y 50/60 2513 4.9 920M9M4 3F 6P 2V +SCT (2)/(3) [J17/J18] 1100 6 3~ D/Y 50/60 2300 4.6 920

Technical Data

Operating Capacitor

Nominal capacitor voltage

Motor protection class

Motor ther-mal class

Thermal protection

Media Temperature max. Fan weight

Density of media

Installation type (ISO 5801)

Article number

DD 12/12 °C kg kg/m³M003 3F 6P 1V IP20 B NO 40 26 1.2 B 6M0320M954 3F 6P 2V +SCT IP20 F EXT 40 28 1.2 B 61099ZM9M4 3F 6P 2V +SCT IP55 F EXT 40 27 1.2 B 6109GK

(1) = Speed controllable via Transformer(2) = Speed controllable via TRIAC or Transformer(3) = Speed controllable via Inverter * = No speed control available

[HI] High speed, [ME] Medium speed, [LO] Low speedAttention! We suggest to do not use the fan in the grey marked area! The noise ratings given in the performance curves are sound power level LWA7, see „Technical Description“.

Dimensions in mm, subject to change.DD 12/12 M003 3F 6P 1V

DD 12/12 M954 3F 6P 2V

DD 12/12 M9M4 3F 6P 2V

395490.5

230

214

294.

534

252

1

90485

521

395 76471

490.5230

166 112

294.

5 214

3972

342

395 80475

490.5230223 50

214

294.

534

2

104.

5

521

Page 52: Centrifugal Fans direct driven - Nicotra Gebhardt

154

DD-15/11Direct driven centrifugal fans / DD / Technical Data

Technical Data

DD 15/11 M9N2 3F 6P 1V

230/400 V50 Hz

Pa

m³/h

p sF

qV

DD 15/11 E0A1808 1F 6P 1V

230 V50 Hz

A

I

140V

180V

230V

Pa

m³/h

p sF

qV

4.0

5.0

6.0

7.0

3.0

2.0

1.0

A

I0

0

100

400

200

300

500

0 70001000 2000 3000 4000 5000 6000

5.0

0

10.0

15.0

77 dB

[K1]

77

72

72

73

73

79

78

76

75

75

76

73

LWA7

0 80002000 4000 6000 100000

200

100

300

400

84

[K3]80

83 dB

86

87

81

77

70

7175

78

77

81

76

76

180V

230V

280V

400V

LWA7

74

70

Page 53: Centrifugal Fans direct driven - Nicotra Gebhardt

155

DD-15/11Direct driven centrifugal fans / DD / Technical Data

Technical DataSpeed control Curves

Nominal motor power Poles Phases Connection

Mains frequency

Max. power consumption

Max. current consumption Speed

DD 15/11 W – Hz W A 1/minE0A1808 1F 6P 1V (2) [K1] 1350 6 1~ 50 2525 10.8 900M9N2 3F 6P 1V (2) [K3] 2200 6 3~ D/Y 50 3621 6.5 900

Technical Data

Operating Capacitor

Nominal capacitor voltage

Motor protection class

Motor ther-mal class

Thermal protection

Media Temperature max. Fan weight

Density of media

Installation type (ISO 5801)

Article number

DD 15/11 μF V °C kg kg/m³E0A1808 1F 6P 1V 35 450 IP20 F EXT 40 25 1.2 B 6109HCM9N2 3F 6P 1V IP20 F EXT 40 25 1.2 B 61096X

(1) = Speed controllable via Transformer(2) = Speed controllable via TRIAC or Transformer(3) = Speed controllable via Inverter * = No speed control available

[HI] High speed, [ME] Medium speed, [LO] Low speedAttention! We suggest to do not use the fan in the grey marked area! The noise ratings given in the performance curves are sound power level LWA7, see „Technical Description“.

Dimensions in mm, subject to change.DD 15/11 E0A1808 1F 6P 1V

DD 15/11 M9N2 3F 6P 1V

342

.5 4

04

264 568.5

609

373 435

246

.8

150.1

36

3810

232.1

106

342

.5 4

04

264 568.5

609

373

246

.8

150.1

36

38

10

232.1 435 62

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DD-15/15Direct driven centrifugal fans / DD / Technical Data

Technical Data

m³/hqV

DD 15/15 142951 3F 6P 1V +SCT

400 V50 Hz

A

I

DD 15/15 142951 3F 6P 1V +SCT

440 V60 Hz

0

Pa

m³/hp s

FqV

100

400

A

I

200

300

500

700

600

Pa

p sF

0 5000 10000

4.0

2.0

0

6.0

8.0

10.0

0

200

100

300

400

500

0 5000 10000

81 dB

[L1]

7880

84

86

88

89

LWA7

5.0

0

10.0

15.0

83 dB[L2] 82

85

86

88

LWA7

DD 15/15 M9G3 3F 6P 1V +SCT

230/400 V50 Hz

A

I

Pa

p sF

4.0

2.0

0

6.0

8.0

10.0

0

50

200

100

150

250

300

350

400

450

500

78 dB[L3]

81

75

73

71

64 78

75

64

77

74

64

75

76

6579

75

84

83

LWA7

DD 15/15 1429P2 3F 6P 1V +SCT

400 V50 Hz

Pa

m³/h

p sF

qV

A

I

4000 80002000 6000 1000000

50

200

100

150

250

300

350

400

450

500

4.0

2.0

0

6.0

8.0

10.0

81

[L5]

79 dB

77

82

82

81

81

82

82

82

84

86

79

76

72

72

73

73

77

77

78

180V

230V

280V

400V

LWA7

m³/hqV

0 4000 80002000 6000 10000

180V

230V

280V

400V

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157

DD-15/15Direct driven centrifugal fans / DD / Technical Data

Technical DataSpeed control Curves

Nominal motor power Poles Phases Connection

Mains frequency

Max. power consumption

Max. current consumption Speed

DD 15/15 W – Hz W A 1/min142951 3F 6P 1V +SCT * [L1/L2] 2200 6 3~ Y 50/60 4594 8.5 960M9G3 3F 6P 1V +SCT (1) [L3] 2200 6 3~ D/Y 50 3877 7 9001429P2 3F 6P 1V +SCT (2) [L5] 2200 6 3~ Y 50 4140 6.8 910

Technical Data

Operating Capacitor

Nominal capacitor voltage

Motor protection class

Motor ther-mal class

Thermal protection

Media Temperature max. Fan weight

Density of media

Installation type (ISO 5801)

Article number

DD 15/15 °C kg kg/m³142951 3F 6P 1V +SCT IP55 F NO 40 60 1.2 B 6109C8M9G3 3F 6P 1V +SCT IP20 F NO 40 36 1.2 B 6109W21429P2 3F 6P 1V +SCT IP55 F EXT 40 51 1.2 B 6109GX

(1) = Speed controllable via Transformer(2) = Speed controllable via TRIAC or Transformer(3) = Speed controllable via Inverter * = No speed control available

[HI] High speed, [ME] Medium speed, [LO] Low speedAttention! We suggest to do not use the fan in the grey marked area! The noise ratings given in the performance curves are sound power level LWA7, see „Technical Description“.

Dimensions in mm, subject to change.DD 15/15 142951 3F 6P 1V +SCT

DD 15/15 M9G3 3F 6P 1V +SCT

DD 15/15 1429P2 3F 6P 1V +SCT

18×13

5.5

247

342.

540

5

7048

170

621

70 70399539

464264

571

18

3838571.5471

511547

18

547511

471571.5

38 38

18 18

571

264464

539399 7070

621

7048

170

405

342.

5 247

5.5

18×13

342

.5 4

04

264 568.5

609

246

.8

232.1

28

50

471 518

47

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158

DD-15/15Direct driven centrifugal fans / DD / Technical Data

Technical DataDD 15/15 142958 3F 8P 1V +SCT

400 V50 Hz

Pa

m³/hp s

FqV

DD 15/15 142958 3F 8P 1V +SCT

440 V60 Hz

A

I

Pa

m³/h

p sF

qV

A

I0

50

200

100

150

250

0 4000 8000 12000

4.0

2.0

0

6.0

8.076 dB

[L7]

7173

79

81

83

85

LWA7

0 4000 8000 120000

50

300

200

100

150

350

250

4.0

2.0

0

6.0

8.0

10.0

80 dB

[L8]

86

84

82

77

76

LWA7

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159

DD-15/15Direct driven centrifugal fans / DD / Technical Data

Technical DataSpeed control Curves

Nominal motor power Poles Phases Connection

Mains frequency

Max. power consumption

Max. current consumption Speed

DD 15/15 W – Hz W A 1/min142958 3F 8P 1V +SCT * [L7/L8] 1500 8 3~ Y 50/60 2865 5.4 715

Technical Data

Operating Capacitor

Nominal capacitor voltage

Motor protection class

Motor ther-mal class

Thermal protection

Media Temperature max. Fan weight

Density of media

Installation type (ISO 5801)

Article number

DD 15/15 °C kg kg/m³142958 3F 8P 1V +SCT IP55 F NO 40 78 1.2 B 6109F6

(1) = Speed controllable via Transformer(2) = Speed controllable via TRIAC or Transformer(3) = Speed controllable via Inverter * = No speed control available

[HI] High speed, [ME] Medium speed, [LO] Low speedAttention! We suggest to do not use the fan in the grey marked area! The noise ratings given in the performance curves are sound power level LWA7, see „Technical Description“.

Dimensions in mm, subject to change.DD 15/15 142958 3F 8P 1V +SCT

547511

471571.5

38 38

18 18

571

264464

539399 7070

621

7048

170

405

342.

5 247

5.5

18×13

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160

DD-18/18Direct driven centrifugal fans / DD / Technical Data

Technical Data

DD 18/18 142974 3F 8P 1V +SCT

230/400 V50 Hz

Pa

m³/h

p sF

qV

DD 18/18 142970 3F 6P 1V +SCT

400 V50 Hz

A

I

Pa

m³/h

p sF

qV

A

I

LWA7

5.0

0

10.0

15.0

5000 10000 150000

100

400

200

300

500

700

600

82 dB[M1]81 84

8586

5000 10000 15000

5.0

0

10.0

15.0

20.0

100

200

300

400

0

85

[M3]

78

81 dB

89

91

92

LWA7

DD 18/18 142974 3F 8P 1V +SCT

230/400 V60 Hz

m³/hqV

A

I5000 10000 15000

5.0

0

10.0

15.0

20.0

85

[M4] 8283 dB

88

89

LWA7

p sF

Pa

100

200

300

400

500

600

0400V Y

400V

230V

Page 59: Centrifugal Fans direct driven - Nicotra Gebhardt

161

DD-18/18Direct driven centrifugal fans / DD / Technical Data

Technical DataSpeed control Curves

Nominal motor power Poles Phases Connection

Mains frequency

Max. power consumption

Max. current consumption Speed

DD 18/18 W – Hz W A 1/min142970 3F 6P 1V +SCT * [M1] 4000 6 3~ D/Y 50 7084 12 965142974 3F 8P 1V +SCT * [M3/M4] 3000 8 3~ D/Y 50/60 6929 12.4 700

Technical Data

Operating Capacitor

Nominal capacitor voltage

Motor protection class

Motor ther-mal class

Thermal protection

Media Temperature max. Fan weight

Density of media

Installation type (ISO 5801)

Article number

DD 18/18 °C kg kg/m³142970 3F 6P 1V +SCT IP55 F NO 40 48 1.2 B 6109L1142974 3F 8P 1V +SCT IP55 F NO 40 98 1.2 B 6109N4

(1) = Speed controllable via Transformer(2) = Speed controllable via TRIAC or Transformer(3) = Speed controllable via Inverter * = No speed control available

[HI] High speed, [ME] Medium speed, [LO] Low speedAttention! We suggest to do not use the fan in the grey marked area! The noise ratings given in the performance curves are sound power level LWA7, see „Technical Description“.

Dimensions in mm, subject to change.DD 18/18 142970 3F 6P 1V +SCT

DD 18/18 142974 3F 8P 1V +SCT

18×13

55738 38738

597 1818

547314

695

9075

157

190

654474 9090

41

629

841

547

9

55738 38738

597 1818

547314

695

9075

157

190

654474 9090

41

629

841

547

9

18×13

Page 60: Centrifugal Fans direct driven - Nicotra Gebhardt

162

DDDirect driven centrifugal fans / DD / Specifications

SpecificationsHigh performance centrifugal fan DDDouble width, double inlet (DWDI), direct driven forward curved blades fan.Lap-jointed scroll of galvanized steel (EN10142) assembled through a high technology roller-lock seaming (sizes ≥7 inches), spot-welded scroll of galvanized steel (sizes <7 inches).Straight cut off plate at fan outlet. Impeller with forward curved blades of galvanized steel, directly mounted on an “Inter-nal Rotor” motor for optimal motor cooling and no transmission losses.Open (IP20) or closed (IP32/IP44/IP55) motor frame; Motors may be single- or three-phase; single- or multi speed, speed-adjustable by voltage regulation through transformers or TRIAC regulators. Motors suitable for use at 50Hz or 60Hz are available.Built-in thermal protection devices either in series or wired out is standard fit. Maintenance free self-aligning ball bearings, vibration isolation pads.Impeller dynamically balanced according to ISO 1940.Different fan options and accessories, motor types and sizes available - see technical data.

Fan data

Fan type

. . . . . . . . . . . . . . . . .

Volume flow qV

. . . . . . . . . . . . . . . . . m³/h

Static pressure psF

. . . . . . . . . . . . . . . . . Pa

Air density at fan inlet r1

. . . . . . . . . . . . . . . . . kg/m³

Air temperature t

. . . . . . . . . . . . . . . . . °C

Max. power consump-tion

Pe

. . . . . . . . . . . . . . . . . kW

Speed N

. . . . . . . . . . . . . . . . . 1/min

Frequency f

. . . . . . . . . . . . . . . . . Hz

Sound power level (A weighted)

LWA

. . . . . . . . . . . . . . . . . dB

Weight m

. . . . . . . . . . . . . . . . . kg

Fittings / AccessoriesOutlet flange - O•Outlet flexible connection - A (sizes ≥7/7)•Mounting feet - O/A (sizes ≥7/7)•Terminal box - O•Inlet guard - O/A•Outlet guard - O/A•Powder-coating - O•TRIAC electronic regulators - A•

LegendO = OptionsA = AccessoryO/A = The item could be delivered as an option or an accessory

Please, check availability of each individual option or accessory on each specific fan model.

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163

Fittings / AccessoriesDirect driven centrifugal fans / DD / Accessories

AccessoriesAll options and accessories must be specified separately.Please take the technical data and dimensions from the corresponding page of the catalogue.

FlangesMade from galvanized or painted steel, to connect ducts and system components to the fan outlet side.

Dimensions in mm, subject to change.

ce e13 13

a

b

28

Ø d113f

df

a bDD c d e f

232 2017/7 288 257 131 115.5232 2559/7 288 311 131 142.5298 2559/9 354 311 164 142.5265 28410/8 321 340 147.5 157331309

284334

10/10 387 340 180.5 15712/9 365 390 169.5 182

395373

334397

12/12 451 390 212.5 18215/11 429 453 201.5 213.5

Ø d1

99999999

471 39715/15 527 453 250.5 213.5557 47118/18 613 527 293.5 250.5

99

13

Flexible connectionFlexible connection to connect the fan to system components or units, absorbing and stopping the vibration transmission.

Dimensions in mm, subject to change.

ce e13 13

a

b

35172

Ø d113f

df

13

a bDD c d e f

232 2017/7 288 257 131 115.5232 2559/7 288 311 131 142.5298 2559/9 354 311 164 142.5265 28410/8 321 340 147.5 157331309

284334

10/10 387 340 180.5 15712/9 365 390 169.5 182

395373

334397

12/12 451 390 212.5 18215/11 429 453 201.5 213.5

Ø d1

99999999

471 39715/15 527 453 250.5 213.5557 47118/18 613 527 293.5 250.5

99

Dimensions in mm, subject to change.

ce e13 13

a

b

224

Ø d113f

df

13

a bDD c d e f

232 2017/7 288 257 131 115.5232 2559/7 288 311 131 142.5298 2559/9 354 311 164 142.5265 28410/8 321 340 147.5 157331309

284334

10/10 387 340 180.5 15712/9 365 390 169.5 182

395373

334397

12/12 451 390 212.5 18215/11 429 453 201.5 213.5

Ø d1

99999999

471 39715/15 527 453 250.5 213.5557 47118/18 613 527 293.5 250.5

99

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164

Fittings / AccessoriesDirect driven centrifugal fans / DD / Accessories

Mounting feetFeet made from galvanized steel, either mounted or loose, enable the fan to be ins-talled with a 0, 90 and 270 orientation.

Dimensions in mm, subject to change.

pl

q

h

wx16 rv

x2x3

sx4

11x16

w

w

w

h lDD p q r s

17 2827/7 258 203 169 14538 2829/7 258 253 199 17738 3489/9 324 253 199 17738 31510/8 291 287 227 1983838

381359

10/10 357 287 227 19812/9 335 332 266 232

3838

445423

12/12 421 332 266 23215/11 399 380 309 272

v

147179179197197224224258

38 52115/15 497 380 309 27242 60718/18 583 457 376 340

w x1 x2 x3 x4

225 117 86 88 47300 119 124 123 120300 119 124 123 120340 136 132 135 132340408

136 132 135 132161 153 161 153

408495

161 153 161 153197 211 201 200

495 197 211 201 200608 262 283 278 288

258307

Terminal boxEach fan is equipped with a loose cable, a terminal strip or a terminal box (see speci-fic catalog data for details)The terminal box is commonly fitted to the side plate of the fan. It is made of plastic material and provided with cable glands. A schematic diagram, always provided with the fan, displays the proper electrical connection.

Dimensions in mm, subject to change.

13082 58

9042

Protection guardsInlet or outlet protection guards are available as accessories from size 7/7 to 10/10, for bigger sizes and for further information, please contact Nicotra Gebhardt technical department.

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Fittings / AccessoriesDirect driven centrifugal fans / DD / Accessories

Increased corrosion protectionNicotra Gebhardt fans are provided – as a standard equipment – with a highly efficient corrosion protection but, in the event of extremely high corrosion risk, additional corrosion protections might be required.Following to the application and corrosion stress conditions, special coatings of vari-ous types and thickness can be supplied on request.

RVM - Single-phase manual regulatorElectronical speed control unit producing a stepless modulated output voltage for fans with speed controlled single phase motors ExecutionCasing made of impact resistant plastic.

FunctionThe speed controller is equipped with an EMC-filter, a turning knob for speed control starting at a fixed rpm-value, an operation indicating light (RVM 5I, RVM 9I, RVM 20I), and an internal fuse protection.

Technical DataArticle number

Nominal voltage

Max. current Frequency

Protection class

Tempera-ture range Fuse a b c

V A Hz °C mm mm mmRVM 1,5E K43157 230 1.5 50/60 IP20 +0/+40 5X20 10A FAST 82 82 38RVM 3E K43142 230 3 50/60 IP20 +0/+40 5X20 10A FAST 82 82 38RVM 5I K43143 230 5 50/60 IP54 -10/+40 5X20 10A FAST 125 125 90RVM 9I K43144 230 9 50/60 IP54 -10/+40 6,3X32 20A FAST 125 125 105RVM 20I K43139 230 20 50/60 IP54 -10/+40 6,3x32 32A GL 175 175 105

Dimensions

a c

b

Wiring Diagram

1 2

L N M230 V/AC50/60 Hz

3

RVM 1.5E, RVM 3E

4 1 2

L N

M

230 V/AC50/60 Hz

3

RVM 1.5E, RVM 3E

4

Motor

Motor

Page 64: Centrifugal Fans direct driven - Nicotra Gebhardt

166

Fittings / AccessoriesDirect driven centrifugal fans / DD / Accessories

Wiring Diagram

C PL N

230 V/AC50/60 Hz

A

12

3

RVM 5I, RVM 9I, RVM 20I Capacitor

Motor 1 Common2 Main3 Auxiliary

+ Earth

RVT - Three-phase manual regulatorElectronical speed control unit producing a stepless modulated output voltage for fans with speed controlled three phase motors.

ExecutionPlastic casing with cast aluminium base plate, IP54 protection class.

FunctionWith the control unit a setting of the minimum speed value as well as the maximum speed is provided. It is equipped with an internal overload protection and, as an option, there are contacts provided for connecting the thermo contacts (PTO) in the motor winding.Following to switching the unit on, the controller automatically is operating a softstart of the motor up to the speed which is set by the position of the potentiometer. By turning the potentiometer the motor speed will be changing due to driving it with a varying voltage through phase cutting.

Technical DataArticle number

Nominal voltage

Nominal current Frequency

Protection class

Tempera-ture range Fuse a b c

V V Hz °C mm mm mmRVT 3A K43114 400 3 50/60 IP54 +0/+40 6x32 GF10 175 175 105RVT 6A K43115 400 6 50/60 IP54 +0/+40 6x32 GF20 175 175 105RVT 9A K43116 400 9 50/60 IP54 +0/+40 6x32 GF20 175 250 105

Dimensions

c

b

a

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167

Fittings / Accessories

Wiring Diagram

PE

PE

GNDL2

0 100 %

L3

400 V / 50 Hz

U

RVT

L1 V W

3~

400 V

min

max

Motor

Tens

ion

Control

Direct driven centrifugal fans / DD / Accessories

Star-delta switchEnclosed selector for star-delta motor configuration for three-phase motors.

ExecutionInsulated polycarbonate module, IP66 protection degree. front mounting, silver front panel, 60 switching angle, terminals accessible both from mounting direction or late-rally, data rated according to IEC 60947.

FunctionA 3-position changeover switch for 0 = Motor OFF, Y = STAR motor configuration, D = DELTA motor configuration. It must be installed between the 3-phase power supply (L1, L2, L3) and a 3-phase controllable motors, having the STAR-DELTA terminals externally available (U1, V1, W1 and U2, V2, W2 respectively). It provides a safe way to switch between the STAR and DELTA motor configurations, changing, in this way, between the high (DELTA) and low (STAR) motor speed. The switch can't be used as STAR/DELTA motor starter!

Technical DataArticle number

Nominal voltage

Nominal current Frequency

Protection class

Temperature range

V A Hz °CM200 K43131 400 16 50/60 IP66 -25/+40

Dimensions in mm, subject to change.9010

0

2×20

2×20

M4

8032 85

Wiring Diagram

3

8

9 15

122 6

7

14

0Y

×× × ×

× ××

× ×× ×

L1 L2 L3

2 9 1436

15

M3~

7128

U1V1W1

U2V2

W2

0Y

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168

DescriptionDirect driven centrifugal fans / DD / Description

SafetyThese fans are intended to be incorporated into finished products for the treatment of clean and filtered air, free of dust, particles, shavings, grease, etc., within the rated ranges of temperature and electrical supply. The design of the installation shall guarantee the essential safety requirements, as specified by the locally enforceable legislation, including safety against human contact with moving parts, e.g. by application of the design principles stated in EN ISO 12100.When the inlet and/or outlet of a fan are connected to a ducting system, or to a closed plenum, including integral filters or grids, these may be designed also to provi-de the specified protection level. Otherwise, the fan must be protected by fitting appropriate inlet or outlet guards, designed in accordance with EN ISO 13857, available from Nicotra Gebhardt as accessories or options.

Type code

1F3F

2P4P6P

1V2V3V4V FL SCT SP SB GRG GRGP

Single phaseThree phase

2-pole4-pole6-pole

1-Speed2-Speeds3-Speeds4-Speeds

Outlet flange Terminal box Special version Mounting Feet Inlet guard Outlet guard

Performance dataAir performance ratings shown in this catalogue have been derived from performance tests made with installation type "B", with free inlet and ducted outlet.The performance data shall be obtained in a laboratory registered by AMCA for AMCA 210/99 air performance testing. Data are not certified by AMCA.Ratings are referred to the standard air density of r1 = 1.2kg/m3 at the fan inlet.

Sound

1m

4 1 1.1 2 3

45°

In the diagrams, the A-weighted housing and free inlet sound power level LWA7 is given as the emission parameter for the ventilator.The A-weighted noise level LpA7 for a distance of 1m (see sketch) is achieved appro-ximately in that the correction value given below is subtracted from the respective A sound power level.It should be noted that site acoustics, duct design, reverberation, natural frequencies etc. can all influence noise to a greater or a lesser extent.

LpA7 ≈ LwA7 - dL

Correction values dL:Size ≤10/10: dL = 7dBSize ≥12/9: dL = 8dB

1 = Fan1.1 = Motor2 = duct on discharge3 = Chamber4 = Microphone position

Fan operating area

0

Pa

m³/h

p sF

qV

50

10000

100

150

500

56

58

56

57

57

55 dB

2.0

1.0

A

I0

1.5

56

0.5

LWA7

For a proper fan selection the duty point in the grey area to the left of the leftmost dashed parabolic line drawn on each performance diagram should preferably be avoided. In this area the fan stall is producing fluctuating pressure and fluctuating loads on the fan and motor; some single-phase motors may also be overheating in this low-load condition.When the performance curves of a fan are cut to the right with continuous-line parabola, a fan selection with the duty point located below of this parabola shall be carefully avoided, because the drive motor would be overloaded and would be overheating. Such an operating condition may be evidenced by a motor input current exceeding the maximum rated value.

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DescriptionDirect driven centrifugal fans / DD / Description

Fan lifespanThe high level of manufacturing technology and the use of selected materials provide a considerable fan operating lifetime.In most applications, the fan components more subjected to wear are the motor bearings.The bearings are sized to reach, using 80% of the maximum allowed current and wor-king at an air temperature not higher than 40°C, a L10h operating life of 20,000 hours. This means a 7 years fan lifetime, for fans running 8 hours a day.

MediaThis range of fans are specially designed for use into air handling units (AHU) and ventilation systems.The centrifugal fans are ideal for conveying clean air. The allowed air temperature comes from -20°C to +40°C.

MotorsMost motors have “F” ISO insulation class but some of the smaller models have nevertheless “B” ISO insulation class.Motors could have IP32; IP44; IP54 or IP55 protection class (closed frame) or IP10; IP20 protection class (open frame).Detailed information for each fan model are provided with fan specification on the product pages.

Motor protectionAll standard production motors are equipped with an integrated thermal overload protectors (TOP), as protection against thermal overload.TOP may be wired internally to windings and then they’ll automatically stop the motor, if a overheating event occurs, and start the motor again once it is cooled down.TOP may alternatively be externally wired, that means TOP terminals are available to the user in the motor terminal block or terminal box.In this case, the TOP terminals can be manually connected in series between power supply and motor windings or, alternatively, to an external device that switches off the mains to prevent that the motor be damaged by an overheating conditions.

Speed regulation generallyAll standard production motors can always be used with transformers or devices which do not modify the sinusoidal wave line to change the fan speed is always allowed.

Speed regulation for fans equipped with single-phase motorsSingle or multiple speed available. Single phase motors are generally suitable for speed regulation by changing the input voltage with our electronic single-phase RVM speed regulators (see chapter "Options/Accessories" for further information).The speed variable types are marked with an dot in the technical data tables.The reduced – voltage curves shown in the catalogue may be obtained by either using transformers or our RVM regulators. In the last case, we have commonly used a 2-wires connection for running currents up to 3 Ampere max and a 3-wires connec-tion for higher running currents.Speed regulation of multi-speed fans is obtained by connecting the mains to the correct motor terminals according to the wiring diagram supplied with each fan.

Speed regulation for fans equipped with three-phase motorsSingle or double speed available. Performance diagrams of single speed fans usually shows only the curve referred to a 230V star – 400V delta configuration.Performance diagrams of double speed fans usually shows the curves referred to a 400V star (high speed) – 400V delta (low speed) configurations.The use of RVT controllers or inverter is only acceptable with special motors equipped with a reinforced insulation of the windings. In this case, these devices shall be in accordance with the requirements of IEC / TS 60034-17:2006.

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AccessoriesDirect driven centrifugal fans / Appendix / Accessories

Frequency converterDesignFrequency inverter with variable output voltage and frequency, specially designed for the operation of centrifugal fans with induption motors. Due to the use of modern po-wer semiconductors it is possible to achieve a speed of revolution with high efficiency. Switching frequencies up to 16kHz can be set with all types. If the highest switching frequencies are required (for example for reasons of noise reduction), the maximum output current is decreased, in which case the performance category should be specially checked.The overall package includes the frequency inverter, filter for class B (for residential and commercial uses) as well as a control unit.

General Performance characteristics Motor protection feature for motors with thermistor temperature sensors, adjustable accelaration and deaccelaration ramps, minimum and maximum rotation speeds, fixed rotation speeds, trapping switch during operation, programmable inputs and PI-controller (MM420 and MM430 only), RS485 serial interface as well as a detailed operating instructions. Caution about combination with isolators (ESH)! Special EMC-action can be necessary, furthermore do not switch during operation, overvoltages can destroy the switch and the motor-winding.

Performance range G110 1AC 230V (for single-phase AC supply)0.25kW to 2.2kW rated motor power, 200V to 240V 10% single-phase AC, 47Hz up to 63Hz, three-phase current output 3×230V AC, protection class IP20.Permitted ambient temperature during operation: -10°C up to +40°C.

Performance range MM420 3AC 400V (for three-phase AC supply)0.55kW to 11kW rated motor power, 380V to 480V 10% three-phase AC, 47Hz up to 63Hz, three-phase current output 3×400V AC, protection class IP20. Permitted am-bient temperature during operation: -10°C up to +50°C. The interference suppression filter required to comply with the EMC basic interference suppression standard EN 50081-1 (residential and commercial uses) is integrated into the package as subst-ructure option. Power choke to comply with EN 61000-3-2 as additional component.Observe performance reduction when using high clock frequencies!

Performance range MM430 3AC 400V (for three-phase AC supply)15kW to 250kW rated motor power, 380V to 480V 10% three-phase AC, 47Hz up to 63Hz, three-phase current output 3×400V AC, protection class IP20.Permitted ambient temperature during operation: -10°C up to +50°C. The interfe-rence suppression filter required to comply with the EMC basic interference suppres-sion standard EN 50081-1 (industrial applications) is partially integrated. In order to at-tain EMC requirements Class B a frequency inverter without filter should be selected.The appropriate EMC-B filter is then required as an additional component.Observe performance reduction when using high clock frequencies!

The indicated ratings of the units are made for a quick selection. The exact dedication of an inverter in this catalogue is made by taking into account of the max. admitted current at a pulse frequency of 4kHz. It is important to know that at higher pulse frequencies the supplied current of the inverter will be decreasing, with the possible consequences of having to select a larger inverter unit. Also longer feed lines or addi-tional radio frequency filters may lead to the choice of a larger inverter size.The selected frequency inverters (G110 und MM420) are units contains the frequency inverter (as shown in the following tables) with the matching interfe-rence suspression filter (Class B) and a control panel. A further component is the line choke which is available as an accessorie. For more information the available frequency inverters are shown in the following tables.

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Frequency converter

Technical Data | Dimensions

b

a

c

For three-phase AC motors on the single-phase supply.

6SL3211-Nominal power

Nominal current a b c Weight

kW A mm mm mm kg0AB12-5BA0 0.25 1.7 150 90 116 0.80AB13-7BA0 0.37 2.3 150 90 116 0.80AB15-5BA0 0.55 3.2 150 90 131 0.90AB17-5BA0 0.75 3.9 150 90 131 0.90AB21-1AA0 1.1 6 160 140 142 1.50AB21-5AA0 1.5 7.8 160 140 142 1.50AB22-2AA0 2.2 11 181 184 152 2.1

Technical Data | Dimensions

b

a

c

For three-phase AC motors on the three-phase supply

6SE6420-Nominal power

Nominal current a b c Weight

kW A mm mm mm kg2UD15-5AA1 0.55 1.6 173 73 149 12UD17-5AA1 0.75 2.1 173 73 149 12UD21-1AA1 1.1 3 173 73 149 12UD21-5AA1 1.5 4 173 73 149 12AD22-2BA1 2.2 5.9 202 149 172 3.32AD23-0BA1 3 7.7 202 149 172 3.32AD24-0BA1 4 10.2 202 149 172 3.32AD25-5CA1 5.5 13.2 245 185 195 52AD27-5CA1 7.5 18.4 245 185 195 52AD31-1CA0 11 26 245 185 195 5

Technical Data | Dimensions

b

a

c

For three-phase AC motors on the three-phase supply

6SE6430-Nominal power

Nominal current a b c Weight

kW A mm mm mm kg2AD31-5CA0 15 32 245 185 195 5.72AD31-8DA0 18.5 38 520 275 245 172AD32-2DA0 22 45 520 275 245 172AD33-0DA0 30 62 520 275 245 172AD33-7EA0 37 75 650 275 245 222AD34-5EA0 45 90 650 275 245 222AD35-5FA0 55 110 1150 350 320 752AD37-5FA0 75 145 1150 350 320 752AD37-8FA0 90 178 1150 350 320 752UD41-1FA0 110 180.4 1450 326 356 1162UD41-3FA0 132 220 1450 326 356 1162UD41-6GA0 160 265.8 1533 326 545 1162UD42-0GA0 200 325.6 1533 326 545 1162UD42-5GA0 250 419.8 1533 326 545 116

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Motor protection unit

Motor protection unit EUM 33

Motor protection unit for three-phase current motors (standard motors) without ther-mal contacts.

DesignPlastic casing in protection class IP55, permissible ambient temperature +40°C, 40Hz up to 60Hz, frontal operation, for wall mounting. Motor protection unit for single-speed, non-variable speed three-phase current motors without thermal contacts.

FunctionThe motor protection units must be adjusted on site to the trigger current. If the preset trigger current is exceeded, the device disconnects the motor from the mains supply via a thermal overload release. Pressing the “on key” causes the unit to turn on again.

All motor protection units EUM33 are also suitable for the protection of EExe-motors (PTB-Prüfung Gesch-Nr. 3.35/386.3060). They must however be mounted outside of explosion endangered areas, since they are not themselves designed with explosion protection.

Technical DataEUM 33- Continuous current Setting range Max. nominal power

A A kW0004-8D 0.4 +0.2/+0.4 0.090006-8D 0.6 +0.4/+0.6 0.120010-8D 1 +0.6/+1 0.250016-8D 1.6 +1/+1.6 0.550024-8D 2.4 +1.6/+2.4 0.80040-8D 4 +2.4/+4 1.50060-8D 6 +4/+6 2.50100-8D 10 +6/+10 40160-8D 16 +10/+16 7.50200-8D 20 +16/+20 90250-8D 25 +20/+25 12.50500-8D 50 +25/+50 250580-8D 58 +50/+58 30

Dimensions in mm, subject to change.

97

160

130

47.5

181

114

Wiring Diagram

L3PE

L2L1

1 3 5

2 4 6

U1 V1 W1

EUM33

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AccessoriesDirect driven centrifugal fans / Appendix / Accessories

Universal control deviceUniversal control device for installation in control cabinets Digital control module for controlling pressure, air velocity or volume flow (PI controller). For example, a transfor-mer for fans is controlled via the 0...10V output. The device is designed for installation in control cabinets.

TypeMulti functional LC-display for actual and nominal values (m/s, hPa = mbar, 100m³/h).Menuassisted adjustment via three function keys.Actual value input 0...10V e. g. for:

air speed sensors Type EIL in measuring ranges from 0...1m/s and 0...10m/s e. g. •for Air velocity control in clean room technologyPressure sensors Type EIP in measurement ranges 50Pa up to 4000Pa e. g. for •Pressure control in canal systems of air conditioning systems (VVS) and Flow control in centrifugal fans with pressure tappings in the inlet cone

The control module calculates the required flow (m³/h) from the differential measured pressure between the surrounding level and inlet cone.

Output 0...10V e. g. for controlling a transformer•Failure message is output via display (internal/external) and relay programmable•External set value specification via potentiometer or 0...10V signal•Specification of two set values (day/night), can be switched over externally or via •keyboardProtection against unauthorised setting by keyboard code•

Application areaPressure regulation for centralised ventilation systems and variable volume flow •systems for building air conditioning (VVS) e.g. in combination with a frequency inverter or a commutation unit or a transformer and a pressure sensorVolume flow regulation for centrifugal fans (with measuring stub in the inlet cone) •e.g. in combination with a frequency inverter or a commutation unit or a trans-former or a mini-interface inverter and a pressure sensor and the volume flow volumeterAir speed regulation for clean room systems, e.g. in combination with a transfor-•mer and an air speed sensor

Electrical connection and installationConnection to 230V, 50/60Hz. The control module can be installed in a control ca-binet door. Admissible relative humidity: 85%, noncondensing. Power supply for the sensors included:+24V, 20%, Imax = 70mA.Setting options

Set values in the measurement range of the sensor (m/s, hPa = mbar), or in the •volume flow range of the fan (×100m³/h)Switch over of set value (day/night)•Min./max. setting range•Translation of performance curve (P component)•Constant of integration can be selected (I component)•Reversal of the effect of the control behaviour•Rotation of the performance curve•Switchover or programming of internal/external set value•Sensor selection via keypad•Programming for ”Filter fault”•Keypad code•K factor entry (The K10-factor can be found in the current lists of our fan line)•

Technical Data

ERA 02-Input voltage

Output voltage

Max. output current

Motor protection class

Operating consump-tion

Operating temperatur

V V mA VA °C4000-5E 0/10 0/10 10 IP20 10 +0/+40

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Universal control deviceDimensions in mm, subject to change.

106

166.5 44 10.5max. 105

159

99

Instrument panel window

Wiring Diagram

11 12 2414 21L1 N 22PE

D+

D–

24V

GND

24V

D1

D2

D3

A1

A2

GND

GND

E1

E2 E1

E2

°CVmA

°CVmA

K1 K2

DATA

+

B GNDRS485

+

+ +A

(+) (–)

Out,

24 V

DC

Inpu

t, Di

gita

l 1/2

/3

Out,

Analo

g 1/

2

Inpu

t, An

alog

0-10

V 1

/2

Contact ratingmax. 5 A / 250 V AC

A1Out

0-10 V

A2Out

0-10 V

E1Input

0-10 V

E2Input

0-10 V

Mains

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Differential pressure sensorDifferential pressure sensor with membrane for measuring the pressure, negative pressure or differential pressure of nonaggressive gases.

TypeThe differential pressure to be measured acts transformed into an output signal of 0...10V by electronics (in SMD technology).

Application rangesVolume flow regulators in centrifugal fans (with volume flow measuring device IMV) in connection with a frequency inverter type G110, MM420, MM430, or a universal regulator appliance type ERA 02-4000-5E in connection with a frequency regulator.

Electrical connection and installationThe differential pressure sensor delivers a starting signal (0...10V) by pressure increa-se at the ”Plus” connection opposite pressure on the ”Minus” connection. Voltage supply

15...30V DC or 24V AC, 15%•Pressure connections must point downward, tube connection ø5mm•

Measuring accuracyNull drift: 0.75%•Sum of linearity and hysteresis: 1%•Temperature drift zero point: 0.3%/10K•Temperature drift length of measurement: 0.2%/10K•

Dimensions in mm, subject to change.

70

4.5

~50

0

50

8ø5

16

Technical Data

EIP 01-Pressure range

Motor protection class

Max. current consumption

Overload protection

Output signal proportional

Operating temperatur

Pa mA Pa V °C0200-12 +0/+200 IP65 12 20000 +0/+10 +0/+500500-12 +0/+500 IP65 12 20000 +0/+10 +0/+501000-12 +0/+1000 IP65 12 20000 +0/+10 +0/+502000-12 +0/+2000 IP65 12 20000 +0/+10 +0/+504000-12 +0/+4000 IP65 12 20000 +0/+10 +0/+50

Wiring Diagram

++ ~

- = ~

pp

+ Output 0...10V DC

brown

yellow

white

Pressure connections

5 mm

Power supply15...30 V DC24 V AC ±10 %

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Isolator ESH 21

Isolator ESH 21 (≤ 3kW) Isolator ESH 21 (≥ 5.5kW)

DesignBeautifully shaped, shock-resistant plastic casing. Protection class IP44/IP65, for sur-face mounting, switching symbols 0 and I. The isolator is fitted with connection terminals that are very accessible and has a con-nection diagram glued in the casing.

The ESH21 up to 3kW is designed to IP44. It is equipped with an integrated lo-cking mechanism.The ESH21 up to 5.5kW is designed to IP65. It is equipped with a coupling cover and an integrated locking mechanism. A padlock can in some cases be fitted to the rotary switch.

FunctionThe isolator disconnects the fan safely from the mains in the event of cleaning, main-tenance or repair work on site and thus avoids accidents due to uncontrolled activati-on of the unit by third parties. It is no main switch or emergency switch.All of the classified isolators are fitted with potential-free contacts (1 closer and 1 opener). The isolators for motors with a built-in thermal contact have on principle three supple-mentary auxiliary contacts, so that the pre-switched control device does not drop out during cleaning or servicing work due to motor.Caution about combination with frequency inverter! Special EMC-action can be necessary, furthermore do not switch during operation, overvoltages can destroy the switch and the motor-winding.

The isolators are grouped according to motor rated power. All important characteristic data are evident from the model designation. E.g.: ESH 21-0030-65 = 3kW switch - 6 main contacts - 5 auxiliary contacts

Technical Data | Dimensionsa

b

c

d

ESH 21 ≤ 3 kWa

b

cd

ESH 21 ≥ 5.5 kW

ESH 21-Permissible motor power a b c dkW mm mm mm

0030-22 3 73 108 450030-25 3 73 108 450030-32 3 73 108 450030-35 3 73 108 450030-62 3 73 108 450030-65 3 73 108 450055-32 5.5 85 120 80 1100055-65 5.5 125 125 126 1570075-32 7.5 85 120 80 1100075-35 7.5 85 120 80 1100075-62 7.5 100 190 91 1330075-95 7.5 125 125 126 1570110-32 11 85 160 80 1100110-62 11 100 190 91 1330150-32 15 100 190 91 1200150-62 15 145 250 100 1450220-32 22 100 190 91 1200220-62 22 145 250 100 1450300-32 30 145 250 100 1400300-62 30 200 300 172 2000370-32 37 145 250 100 1400370-62 37 200 300 172 2000450-32 45 200 300 172 2000450-62 45 300 300 172 2100550-32 55 200 300 172 2000550-62 55 300 300 172 2100900-32 90 280 400 180 2100900-62 90 280 280 260 327

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Isolator ESH 22DesignShock-resistant metal casing, black switch with symbols 0 and I. Protection class IP65 or IP54, for surface mounting (see determination in the tabular).The isolator is fitted with connection terminals that are very accessible and has a connection diagram glued in the casing.All isolators are equipped with a coupling cover and an integrated locking mecha-nism. In some cases a padlock can be fitted to the rotary switch.

FunctionThe isolator disconnects the fan safely from the mains in the event of cleaning, maintenance or repair work on site and thus avoids accidents due to uncontrolled activation of the unit by third parties. It is no main switch or emergency switch.All of the classified isolators are fitted with potential-free contacts (1 closer and 1 opener).The isolators for motors with a built-in thermal contact have on principle three supple-mentary auxiliary contacts,so that the preswitched control device does not drop out during cleaning or servicing work due to motor.

UseThe isolator ESH22 with metal casing is necessary, if screened components must be used. (e.g. frequency inverters or control engineering devices are used featuring electronic components).

Attention!Do not switch during operation, overvoltages can destroy the switch and the motor winding!

The isolators are grouped according to motor rated power. All important characteristic data are evident from the model designation.E.g.: ESH 22-0075-65 = 7.5kW switch, 6 main contacts, 5 auxiliary contacts.

Technical Data | Dimensions

a

b

dc

ESH 22-

Permissi-ble motor power a b c d

Cable lead-through (top)

Cable lead-through (bottom)

kW mm mm mm mm0075-32 7.5 122 120 120 120 2×PG21 2×PG210110-32 11 122 120 120 120 2×PG21 2×PG210150-32 15 180 180 130 130 2×PG21 2×PG210220-32 22 180 180 130 130 2×PG21 2×PG210300-32 30 230 280 150 150 2×PG29/1×PG16 2×PG290370-32 37 230 280 150 150 2×PG36/1×PG16 2×PG360075-62 7.5 180 180 130 130 1×PG29/1×PG16 2×PG290110-62 11 180 180 130 130 1×PG36/1×PG16 2×PG360150-62 15 230 280 150 150 2×PG36/1×PG16 2×PG360220-62 22 230 280 150 150 2×PG36/1×PG16 2×PG360300-62 30 230 280 150 150 2×PG36/1×PG16 2×PG360370-62 37 230 280 150 150 2×PG36/1×PG16 2×PG360055-35 5.5 180 180 100 100 2×PG21 2×PG210075-65 7.5 116 95 80 80 2×PG16 2×PG160075-95 7.5 116 95 80 80 2×PG16 2×PG16

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NotesDirect driven centrifugal fans / Appendix / Notes

Quality management systemDIN EN ISO 9001Nicotra Gebhardt quality is the result of a continuous company policy intended to guarantee that our product properties and features are clearly superior to comparable products.This already established company maxim led in April 1985 to the auditing and certifi-cation of the existing quality management system. In the following years it was upda-ted to match the changing international and European standards. Modern production processes, monitored by our quality management system, guarantee a high repeat accuracy in production.This ongoing high standard of quality permits the establishing of the performance data in classes of accuracy in accordance with DIN 24166.The narrow tolerances ensure a high level of data reliability for our products.

Machine SafetyThe fans contained in this catalogue are not machines in the sense of the EC Machine Directive. They are delivered with a manufacturer "Declaration of incorporation".The assessment of the dangers associated with the fan and necessary safety measu-res are based on the VDMA Unit sheet 24167 : Fans; Safety requirements.The operating instructions give which safety measures are still necessary on assembly to ensure that the fans comply with the Machine Directive 2006/42/EC.

Catalogue dataWe reserve the right to change any measurements and technical data in this cata-logue in accordance with further development of our products. All information valid at the time of printing.

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Nicotra Gebhardt GermanyNicotra Gebhardt GmbHGebhardtstraße 19-2574638 Waldenburg (Germany)Phone +49 7942 1010 Fax +49 7942 101 170 E-Mail [email protected] www.nicotra-gebhardt.com

NICOTRA-GEBHARDT.COMWORLDWIDE LOCATIONS

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