03A1-E-0017c

225S-355K[FRAME NUMBER]

2019-9(I19c/B16)SI1FOLS Printed in JapanInformation in this catalog is subject to change without notice.

Gate City Ohsaki, East Tower, 11-2,Osaki 1-chome, Shinagawa-ku,Tokyo 141-0032, JapanPhone: +81-3-5435-7190 Fax: +81-3-5435-7475URL: www.fujielectric.com/

Notes on safety

[1] The descriptions in this catalog are intended for assisting with model selection. Before actual use, read the "Instruction Manual" carefully to ensure correct use.

[2] These products are not designed or manufactured for use in vital devices or systems.When considering products mentioned in this material for special applications such as nuclear power control, aerospace, medical care or traffic devices or systems for these purposes, inquire our sales representative. For use in any equipment where failure of the products may lead to life-threatening consequences or serious damage, be sure to provide a safety system.

Premium efficiency motors feature lower generated loss and generally have slightly higher rotational speeds than standard efficiency motors. If the load is a pump or blower and a standard efficiency motor is replaced with a premium efficiency motor, the rotational speed is increased, resulting in increased motor output. Despite the high motor efficiency, increased output may cause increased power consumption. The resistance (primary and secondary) has been lowered for reducing copper loss and the starting current is inclined to increase, which may require changing of the breaker.

Notes on adoption of premium efficiency motors

2, 4, 6P Output: 45 to 375 kW

2, 4P Output: 400 to 450 kW 8P Output: 30 to 250 kW

3 Phase Premium Efficiency Motor [IE3 class]3 Phase Standard Efficiency Motor [IE1 class]

FUJI LOW-VOLTAGEINDUCTION MOTORS

CONTENTS

BRIGHTEN FUTURE WITH TECHNICAL BREAKTHROUGH.BRIGHTEN FUTURE WITH TECHNICAL BREAKTHROUGH.F U J I L O W - V O L T A G E T H R E E - P H A S E I N D U C T I O N M O T O R

Energy-saving effect

Operating time

EnergysavingsEnergysavings

Additional cost forpremium efficiency motorrecouped due to energy costreduction during this period

Price of premium efficiency motor

+

Operation cost

Price of standard efficiency motor

+

Operation cost

Cos

tPr

ice

of p

rem

ium

effi

cien

cy m

otor

Pric

e of

sta

ndar

d ef

ficie

ncy

mot

or

Brea

k-ev

en p

oint

Long service lifeLonger service life for

insulation system*Comparison with conventional products of Fuji

High efficiencyTop-runner

standards achieved*Equivalent to efficiency class IE3 of JIS C 4034-30:2011 Energy saving

Running cost greatly decreased

Easy maintenanceGrease filling method adopted

No need for bearing replacement*Frame size 225S or larger

Improvedworkability

Terminal box mounted at the topEasy to change

cable outlet direction

●STANDARD SPECIFICATION

●MODEL LIST

●TYPE NUMBER NOMENCLATURE

●DIMENSIONAL OUTLINE DRAWINGS [PREMIUM EFFICIENCY MOTORS]

●DIMENSIONAL OUTLINE DRAWINGS [STANDARD EFFICIENCY MOTORS]

4

5

5

6

8

●CHARACTERISTIC SPECIFICATION

●TYPICAL STRUCTURAL DRAWINGS

●INVERTER DRIVING

●NOTES ON USE

●HOW TO ORDER

10

12

13

14

15

FEATURES[PREMIUM EFFICIENCY MOTOR]

Premium efficiency motors have higher efficiency than standard efficiency motors and offer a higher energy-saving effect with longer-hour applications, improving economic efficiency.

225S-355K[FRAME NUMBER]

Outdoor typeGlobal standard

protection rating: IP55

V-ring

Splashwater guard

Outdoorstructure

Options

Grounding ringDestructive shaft voltages can occur in rare instances when operating the motor with an inverter due to bearing grease, wiring, and operating conditions.As a countermeasure, the motor can be ordered with a maintenance-free grounding ring (AEGIS® SGR). Please request this option when ordering.

MODEL LIST

TYPE NUMBER NOMENCLATURE

4 5

1, 2, 3 digit ModelCodeMLUMLA

Premium efficiencyStandard efficiency

Model 4 digit Series No.

M L U 2 2N1 B1 2 3 4 5 6 7 8

5, 6, 7 digit Frame size

Code22022N25025E25225F28028E28228F284286310311

Frame size

225S

250S

250M

280S

280M

280L

315S

312313314315316317318350352354356

Code Frame size

315M

315MN*1/315L*2

315MN315MN*1/315L*2

315MN315L

355M*1/355K*2

355K

*1: Standard efficiency*2: Premium efficiency

8 digit Mounting method

CodeABCDGHJL

Indoor IMB3 (F11)Outdoor IMB3 (F11)Indoor IMV1 (L52)Outdoor IMV1 (L52)Indoor IMB5 (L51)Outdoor IMB5 (L51)Indoor IMB35 (L81)Indoor IMV5 (F12)

Frame size CodeNQRSTUZ

Indoor IMV6 (F13)Indoor IMV3 (L53)Outdoor IMV3 (L53)Outdoor IMB35 (L81)Outdoor IMV5 (F12)Outdoor IMV6 (F13)Other

Frame size

Note) Indications in parentheses show former symbols.

Note) The frame sizes marked with an asterisk (*) indicate Fuji's own designations. Note) The frame sizes marked with an asterisk (*) indicate Fuji's own designations.

225S

250S

250M

280S

280M

280L

315L

355K*

355K*

155 (F)

155 (F)

Premium efficiency

Standard efficiency

Frame size Type Thermalclass

Output [kW]2P 4P 6P

2, 4, 6P

225S

250S

250M

280S

280M

315S

315M

315MN*

315L

355M*

355K*

MLA9221MLA9250MLA9251MLA9252MLA9253MLA9280MLA9281MLA9282MLA9283MLA9310MLA9311MLA9312MLA9313MLA9314MLA9315MLA9316MLA9317MLA9318MLA9350MLA9352MLA9354MLA9356

3037374545555575759090110110132132150150160185200220250

155 (F)Standard efficiency

Frame size ThermalclassType

Output [kW]8P

8P

MLU704455

MLU704555

MLU704645

For products with stock indication, please provide the part number code when placing orders.

Stock indicationPart number code

MLU7044

*Those without a stock indication are made to order.

In stock (200-400/200-400, 220-440 V)

STANDARD SPECIFICATION

Ambient conditions

Terminal box

Lead wire

Standard

Temperature

Humidity

Altitude

Other

Mounting position (leg mounting type)

Port orientation (leg mounting type)

Color of coating

Material

System

Applicable

Efficiency

—

Top side

Leftward as seen from load

250S or larger

Top side

Leftward as seen from load

225S

Downward

Left side as seen from load

Housing structure

Type

Number of poles

Output

Frame size

Time rating

Protection rating

Note 1) The manufacturable range is up to 600 V.Note 2) Rated voltage and rated frequency (*1): output 132 kW or less: dual voltage, output over 132 kW: Single voltage specification (with 4P)Note 3) The starting method (*2) is based on 4P.Note 4) Temperature rise for insulation class (*3): frame size 225S: "B" riseNote 5) No. of lead wires (*4): Fuji's standard value For made-to-order products, specify the starting method and no. of lead wires.Note 6) If you wish to export products (motors as they are or installed in machines, equipment, etc.) to foreign countries, please contact us separately to obtain information about the high-efficiency regulations enforced and implemented in the respective countries.

Premium efficiency Standard efficiency

200／ V and 400／　　V·50/60 Hz200220

400440

Totally-enclosed fan-cooled type

MLA9

S1 (continuous)

IP44

Rated voltage and rated frequency

*1

155 (F)

CCW (counterclockwise as seen from load)

-20°C to +40°C

95% RH max. (no condensation)

1,000 m max.

No corrosive or explosive gas or vapor

Steel plate

Lug system

Munsell N5 (gray)

JIS, JEC, JEM

—

Totally-enclosed fan-cooled type

MLU1

2P, 4P, 6P

45 to 375 kW

225S to 355K

S1 (continuous)

IP55

155 (F)

CCW (counterclockwise as seen from load)

-30°C to +40°C

100% RH max. (no condensation)

1,000 m max.

No corrosive or explosive gas or vapor

—

Top side

Leftward as seen from load

Steel plate

Lug system

Munsell N1.2 (black)

JIS C 4213

JIS C 4034-30:2011 (IE3-equivalent)

Thermal class

Direction of rotation

*2Starting method

*3

*4No. of wires

45 to 55 kW: 675 kW or larger: 3

30 to 55 kW: 675 kW or larger: 3

3

2P, 4P

400 to 450kW

355K

8P

30 to 250kW

225S to 355K

45 to 55 kW: starting75 kW or larger: Direct-on-line starting

30 to 55 kW: starting75 kW or larger:Direct-on-line starting

Direct-on-line starting

200／　　V and 400／　　V・50/60Hz200220

400440

Outdoor

MLU1220

MLU122N

MLU1250MLU125EMLU1252MLU125FMLU1280MLU128EMLU1282MLU128FMLU1284MLU1286MLU1314MLU1316MLU1350MLU1352MLU1354MLU1356MLA9354MLA9356

—

75—90—

110—

132—

160200

220,250300315355375—

400450

−

—75—90—

110—

132160200

220,250300315

355,375——

400450

−

—55—75—90—

110132160

200,220250——

300,315355,375

——

6

Fig. BShaft end detail

Fig. C Fig. DKA

RL

Q

QR

K1 K2XBFF

N

GKG

ZJE E

M

H

KLDA

S

C

KD

Fig. A

7

QR

QU

S

T

W

Note 5) *1: Please contact us for the individual dimensions. *2: NU314MCCG50Note 6) The dimensions are subject to change. Please request dimensional outline drawings for designing.

Note 1) The standard mounting method is IMB3 (F11: frame mounting). Please contact us for other mounting methods.Note 2) Dimensional tolerance: height of rotating shaft C ≤ 250 mm: mm, C > 250 mm: mm, shaft end key groove (W) dimensional tolerance: average class (N9).Note 3) The 2-pole models are for direct connection only.Note 4) Bearing nos. beginning with "63" represent a single row deep groove ball bearing, "NU" a cylindrical roller bearing, "ZZ" a grease-filled shielded ball bearing and "C3" a bearing with the radial gap of C3.

0-0.5

0-1

Premium Efficiency MotorDIMENSIONAL OUTLINE DRAWINGS Outdoor

J ZE EM

D

H

KGG

KL

C

KF F XBN

RAL

KA

Q

S

KD

QR

J ZE EM

D

H

KGG C

KLKD

KF F XBN

S

QR

Q

RAL

KA

ME E

Z

KG

H

DKL

J

CG

F F XBN

K1 K2

QR

S

Q

LA R

KAKD

Premium efficiency[Unit: mm]

A

B

C

D

Frame size Type

Output [kW] BearingN

366

449

449

570533570533800557800557900648900648648900648950890950890950890890890

R

402432

433.5463.5452.5482.5484544

509.5569.5528.5588.5528.5588.5610640610640640610640749819749819749819819819

XB

149

168

168

190

190

190

216

254

Operation side2P

6312ZZC3ー

6314C3ー

6314C3ー

6314C3ー

6314C3ー

6314C3

6314C3

6316C3

4P・6Pー

6315ZZC3ー

6318ー

6318ー

6320ー

6320

6320

6222

6222

Opposite operation sideL

831861101310521013105211421194114211941372143113721431161816481618164816481618164817361806173618061736180618061806

M

436

506

506

630560630560630560630560730630730630630730630810730810730810730730730

Shaft end

Q

110140110140110140110170110170110170110170140170140170170140170140210140210140210210210

QR

1212121212

1

12122121

2.51

2.51

2.52.52.5

S

55m665m655m675m655m675m655m685m655m685m655m695m655m695m665m695m665m695m695m665m695m665m6100m665m6100m665m6100m6100m6100m6

T

1011101210121014101410141014111411141411141116111611161616

U

676

7.56

7.56969696979799797107107101010

W

1618162016201622162216251625182518252518251828182818282828

Drawing No. A

429

579.5588.5560.5569.5658650

632.5624.5843.5842.5843.5842.5

1008

987

C

225

250

250

280

280

280

315

355

4P

ー55ー75ー90ー

110ー

132ー

160ー

200ー

220ー

250ーー

300ー

315ー

355,375ーーーー

6P

ー45ー55ー75ー90ー

110ー

132ー

160ーーー

200220ー

250ーーーーー

300,315ー

355,375

D

476

519

519

628605628605

628

689

778

E

178

203

203

228.5

228.5

228.5

254

305

F

143

155.5

174.5

184

209.5

228.5

254

355

G

25

30

30

4530453045304530453645363645365536553655363636

H

642662

683

658683861831861831

861

975

1059

I

ー

ー

ー

ー

ー

ー

ー

ー

J

80

100

100

160125160125160125160125190150190150150190150190160190160190160160160

K

95

ー

ー

ー

ー

ー

ー

ー

K1

ー

158

158

225185225185450210450210500240500240240500240360330360330360330330330

K2

ー

120

120

225120225120225120225120250140250140140250140250180250180250180180180

KA

115

143.5

162.5

155.5167181

192.5

200

239

375

KD

G2 1/2

G2 1/2

G2 1/2

G2 1/2

G2 1/2

G2 1/2

*１

*１

KL

170

170

170

230

230

230

350

460

KG

550570

591

591

735705735705

735

808

893

1220B122NB1250B125EB1252B125FB1280B128EB1282B128FB

1284B

1286B

1314B

1316B

1350B

1352B

1354B

1356B

225S

250S

250M

280S

280M

280L

315L

355K

MLU

ZApproximate

mass[kg]2P

6312ZZC3ー

6314C3ー

6314C3ー*2ー*2ー

*2

*2

*2

4P・6Pー

6312ZZC3ー

6314ー

6314ー

6317ー

NU314

NU314

NU314

NU314

400440590580

620

9207309408201250120013001300155016001550160016001600170020002000210021002200215023002300

18.5

24

24

24

24

24

28

28

2P

55ー75ー90ー

110ー

132ー

160ー

200ー

220ー

250ーー

300ー

315ー

355ー

375ーーー

8 9

L D

H

KG

C

A

FK J Z

F E EXB

R KL

N M

QKA

S

G

QR

L D

H

KG

C

A

FK J Z

F E EXB

R

KDKL

N M

QKA

S

G

QR

L D

I

C

J Z

E E

A R KL

F

K

F XB

N M

Q

S

G

KDQR

Frame size Type

Output [kW] BearingN

366

411

449

468

519

526

577

577

577

628690690

840

R

432

463.5

482.5

544

569.5

589

614.5

614.5

614.5

640744744749819749819

XB

149

168

168

190

190

216

216

216

216

216254254

254

Operation side2P 4P 6P 4P 6P2P8P

6315ZZ6318

NU3186318

NU3186320

NU3206320

NU3206322

NU3226322

NU3226322

NU3226322

NU322632263226322

6322

Opposite operation side

[Unit: mm]

L

838

909

947

1039

1090

1302

1352

1452

1452

1502159115911633169116331691

M

436

506

506

557

557

628

628

628

628

628730730

730

Shaft end

Q

140

140

140

170

170

170

170

170

170

170210210140210140210

QR

2

2

2

2

2

2

2

2

2

22.52.52

2.52

2.5

S

65m6

75m6

75m6

85m6

85m6

95m6

95m6

95m6

95m6

95m6100m6100m665m6100m665m6100m6

T

11

12

12

14

14

14

14

14

14

14161611161116

U

7

7.5

7.5

9

9

9

9

9

9

91010710710

W

18

20

20

22

22

25

25

25

25

25282818281828

Drawing No. A

406

445.5

464.5

495

520.5

713

737.5

737.5

837.5

862847847884872884872

C

225

250

250

280

280

315

315

315

315

315355355

355

8P

3037374545555575759090

110110132132150150160185200—

220—

250

2P 4P 6P D

475

535

535

605

605

623

623

623

623

623695695

695

E

178

203

203

228.5

228.5

254

254

254

254

254305305

305

F

143

155.5

174.5

184

209.5

203

228.5

228.5

228.5

254280280

355

G

25

30

30

35

35

42

42

42

42

424242

42

H

−

673

673

805

805

917

917

917

917

917998998

998

I

515

—

—

—

—

—

—

—

—

—

—

J

80

100

100

100

100

120

120

120

120

120120120

120

K

95

120

120

120

120

145

145

145

145

145145145

145

K1

—

—

—

—

—

—

—

—

—

—

—

K2

—

—

—

—

—

—

—

—

—

—

—

KA

—

143

162.5

167

192.5

201

226.5

226.5

252

310

385

KD

G2 1/2

G2 1/2

G2 1/2

G2 1/2

G2 1/2

*1

*1

*1

*1

*1

*1

KL

414

170

170

230

230

350

350

350

350

460

460

KG

—

581

581

675

675

753

753

753

753

883

883

92219250925192529253928092819282928393109311931293139314931593169317931893509352

9354

9356

225S

250S

250M

280S

280M

315S

315M

315MN

315L

355M

355K

MLA

ZApproximate

mass[kg]8P

6312ZZ

6314ZZ

6314ZZ

6317

6317

NU3226322

NU3226322

NU3226322

NU3226322

NU322NU322NU322

NU322

330

465

520

685

740

1075

1210

1255

1310

139515851755

1905

2000

19

24

24

24

24

28

28

28

28

282828

28

Note 1) For information on the models indicated by , refer to "DIMENSIONAL OUTLINE DRAWINGS [Premium Efficiency Motor]" (pages 8 - 9).Note 2) The standard mounting method is IMB3 (F11: frame mounting). Please contact us for other mounting methods.Note 3) Dimensional tolerance: height of rotating shaft C ≤ 250 mm: mm, C > 250 mm: mm, shaft end key groove (W) dimensional tolerance: average class (N9).Note 4) The 8-pole models indicated by are for non-direct connection only. The other models are for direct connection only.

0-0.5

0-1

C

B

A

Shaft end detail

QR

QU

S

T

W

225S to 315L 355M·K

S

T

W

UQ

QR

400—

450—

—400—

450

————

NU214C3 NU3226216C3 6322 — —

Note 5) The 2-pole models use a fan for one-direction rotation only.Note 6) Bearing nos. beginning with "63" represent a single row deep groove ball bearing, "NU" a cylindrical roller bearing, "ZZ" a grease-filled shielded ball bearing and "C3" a bearing with the radial gap of C3.Note 7) *1: Please contact us for the individual dimensions.Note 8) The dimensions are subject to change. Please request dimensional outline drawings for designing.

KD

Standard Efficiency Motor

Fig. B

Fig. C

Fig. A

Standard efficiency

DIMENSIONAL OUTLINE DRAWINGS Outdoor

10 11

Note 1) These characteristic values are based on the dynamometer method (actual load method). Note 2) The above current values are for the 400 V type. For the 200 V type, the above value x 2.Note 3) These characteristic values are typical ones. They are not guaranteed.

Note 1) These characteristic values are based on the dynamometer method (actual load method). Note 2) The above current values are for the 400 V type. For the 200 V type, the above value x 2.Note 3) These characteristic values are typical ones. They are not guaranteed.

Note 1) These characteristic values are based on the dynamometer method (actual load method). Note 2) The above current values are for the 400 V type. For the 200 V type, the above value x 2.Note 3) These characteristic values are typical ones. They are not guaranteed.

400 V classCHARACTERISTIC SPECIFICATION

2PPremium efficiency

4PPremium efficiency

6PPremium efficiency

Note) The above current values are for the 400 V type. For the 200 V type, the above value x 2.

Rated current [A] Rated speed [min-1]TypeNumber of poles

2P

4P

8P

MLA9354MLA9356MLA9354MLA9356MLA9221MLA9250/9251MLA9252/9253MLA9280/9281MLA9282/9283MLA9310/9311MLA9312/9313MLA9314/9315MLA9316/9317MLA9318MLA9350MLA9352MLA9354MLA9356

Output [kW]

400450400450303745557590110132150160185200220250

2980298014851485730730735735735735735735735735735735735735

400V3570357017801780875880880880880880880880880880880880880880

400V60Hz50Hz

3580358017851785880885885885885885885885885885885885885885

440V665750645730617489107143168202250282300347375413469

400V60Hz

675760655740647893112149172207256290304352380418475

400V50Hz

615690595670577083100134154185230260276319345380431

440V

2P 4P 8PStandard efficiency

45

55

75

90

110

132

160

200

220

250

300

315

355

375

MLU122N

MLU125E

MLU125F

MLU128E

MLU128F

MLU1284

MLU1286

MLU1316

400400440400400440400400440400400440400400440400400440400400440400400440400400440400400440400400440400400440400400440400400440

506060506060506060506060506060506060506060506060506060506060506060506060506060506060

98878510910297146137129175162154208196185248234219301283265364347324406383360451433402543520485590550520674624592693651613

9851185118599011851190990118511909901190119099011901190990118511909851185119098511851185985118511859851185118598511851185985118511859851185118598511851185

70.255.559.372.161.462.996.481.083.211594.298.1135114117160135137194162166230199200262221225281244244347303303396329338457375388457383391

92.793.793.093.593.593.394.094.194.094.494.294.194.594.694.695.195.295.195.395.495.295.495.295.195.395.395.195.595.295.195.795.695.495.495.595.295.295.595.295.795.795.5

49.962.453.558.969.161.559.771.062.959.873.264.062.673.565.362.674.166.562.574.766.465.876.269.063.675.467.467.277.770.765.274.768.160.272.364.258.971.663.161.973.865.9

82.970.271.189.180.578.8119107105143127124169153149204184178247222215296273261333302292365339323447413396494442431567502492577520504

93.794.594.294.394.394.494.794.694.995.194.895.095.395.395.695.795.795.895.895.895.995.995.795.895.995.895.995.995.795.896.296.196.196.196.196.195.996.096.096.296.396.3

62.773.466.170.978.472.871.980.274.471.881.175.073.981.676.173.281.276.273.281.576.476.382.878.774.682.377.377.383.579.575.681.877.671.880.374.870.779.774.073.181.176.1

98.087.085.010910297.0146136129175162154208196185248234219301283265364347324406383360451433402543520485590550520674624592693651613

93.894.594.594.394.294.694.694.595.095.194.895.295.395.395.895.595.395.895.695.495.995.895.495.895.895.495.895.895.495.895.995.696.095.995.796.195.895.595.996.095.896.2

70.779.073.577.282.678.678.484.280.378.184.680.680.185.081.480.485.482.680.385.582.682.887.284.681.686.983.783.587.485.283.287.184.680.486.482.779.486.082.181.486.883.4

735609680

926.5765873124110201161154012151386187214701702172012801500206015301790264019802300303022402630316023602750373028703280437032803810488036304230498037304340

290220280260200255270205265250175230260180235126761051297710612073991307810711871981097092128781061237410112375102

325275335315265325310260320320255325330260330221169214218166211242185234249189240231176222227177221250192242247188238240184232

1.7872.3552.1571.8511.5881.7702.6861.9882.4863.1892.3563.0632.4742.3482.8253.8683.2733.8443.0303.2253.9173.7724.2604.4513.2823.6843.9012.7533.0573.3103.6305.0024.2903.1124.8874.4952.7694.3953.9223.6975.8055.340

MLU1314

MLU1354

MLU1356

IE3

IE3IE2IE3IE3IE2IE3IE3IE2IE3IE3IE2IE3IE3IE2IE3IE3IE2IE3IE3IE2IE3IE3IE2IE3IE3IE2IE3IE3IE2IE3IE3IE2IE3IE3IE2IE3IE3IE2IE3

Output[kW]Type Voltage

[V]

Load characteristic50% load 75% load 100% loadFrequency

[Hz]

Rated current

[A]

Input difference from standard

motor[kW](with 100% load)

Rated speed[min-1]

Starting current

[A]

Starting torque[%]

Maximum torque[%]Current

[A]Efficiency

[%]Power factor

[%]Current

[A]Efficiency

[%]Power factor

[%]Current

[A]Efficiency

[%]Power factor

[%]

Efficiency class

55

75

90

110

132

160

200

220

250

300

315

355

375

MLU122N

MLU125E

MLU125F

MLU128E

MLU128F

MLU1284

MLU1286

MLU1316

MLU1350

400400440400400440400400440400400440400400440400400440400400440400400440400400440400400440400400440400400440400400440

506060506060506060506060506060506060506060506060506060506060506060506060506060

1009488135128122160152141190184172226220204273267246342332307376365338429414384509495456531517476596579533631615568

148517801785148517801785148517851785149017851790149017851790148017801780148017801780148017801780148017801780148017751780148517801785148517801785148517801785

62.953.053.778.569.369.693.982.380.811210098.9130119115161149144204185180230209204262235230304275267316288278351322311379346338

94.295.094.494.694.694.394.794.794.495.094.994.895.295.395.295.895.595.595.995.795.695.895.795.695.995.995.896.296.196.195.895.895.895.896.095.895.896.095.8

67.078.871.272.982.675.073.083.377.474.783.777.077.284.378.974.981.176.473.881.676.272.179.474.071.880.074.474.081.976.775.182.477.676.282.978.274.681.576.0

80.372.769.710697.694.8125116110149141134176168158217208195273259244305289273348327309409388364426406380476455425508484457

94.995.595.395.295.295.295.395.395.395.595.595.695.895.996.096.295.996.196.396.096.296.396.296.396.496.396.496.496.396.596.396.396.496.496.496.596.496.596.5

78.185.881.580.887.481.881.588.184.783.788.784.584.888.785.683.086.884.082.487.183.881.185.782.380.786.082.682.486.984.083.187.284.683.887.685.282.987.083.7

10094.088.0135128122160152141190184172226220204273267246342332307376365338429414384509495456531517476596579533631615568

94.895.495.495.195.295.495.295.295.495.595.595.895.895.996.296.195.896.296.195.896.396.296.096.396.296.196.496.296.196.496.296.296.496.296.296.596.496.396.6

83.788.586.084.388.884.685.389.887.887.590.487.688.090.388.388.090.388.787.890.888.887.890.688.787.490.788.688.591.189.589.091.490.189.392.090.689.091.489.7

950799880121510241159152012921410190015641720226018702040217017501960281022302520314025302830338026703020370029203300401031903580466036904130504040204550

2752052602602002602702102702301702152451852301248811113694120136961211298811211980103100698710874921087596

355290355315255315315260320330270335335275340261211259268214265275221272259206255237188232248198243254203248262210259

1.8212.1762.0902.2772.3482.5412.1852.2082.3763.2193.3073.2643.2253.3553.4583.5493.9424.2053.5734.0004.5213.9444.7324.8944.2045.3145.8144.5545.8256.6504.2715.8485.9564.0355.8296.0694.7346.3216.337

MLU1314

MLU1352

IE3

IE3IE2IE3IE3IE2IE3IE3IE2IE3IE3IE2IE3IE3IE2IE3IE3IE2IE3IE3IE2IE3IE3IE2IE3IE3IE2IE3IE3IE2IE3IE3IE2IE3IE3IE2IE3

Output[kW]Type Voltage

[V]

Load characteristic50% load 75% load 100% loadFrequency

[Hz]

Rated current

[A]

Input difference from standard

motor[kW](with 100% load)

Rated speed[min-1]

Starting current

[A]

Starting torque[%]

Maximum torque[%]Current

[A]Efficiency

[%]Power factor

[%]Current

[A]Efficiency

[%]Power factor

[%]Current

[A]Efficiency

[%]Power factor

[%]

Efficiency class

55

75

90

110

132

160

200

220

250

300

315

355

375

MLU1220

MLU1250

MLU1252

MLU1280

MLU1282

MLU1284

MLU1286

MLU1316

MLU1350

MLU1352

MLU1354

400400440400400440400400440400400440400400440400400440400400440400400440400400440400400440400400440400400440400400440

506060506060506060506060506060506060506060506060506060506060506060506060506060

929083122122111146145132182179164223214198257256233320319290352349318400397362479474432507500457568561513593592538

296535603565297035653570297035653570297035703575297535703575297035703570297035703570297035653570297035653570297035653570297535703575297535703575297535703575

50.548.545.568.066.062.081.078.073.010497.093.0130117113141137128175169158194186175220211198263251236281267252315300282323313292

93.891.992.093.992.592.694.393.793.894.794.194.194.894.594.594.994.694.695.394.994.995.895.195.295.995.395.496.195.595.695.395.095.095.594.994.995.595.095.2

83.889.186.284.788.785.785.188.986.380.787.082.577.386.181.186.389.186.786.690.087.585.589.886.785.689.786.885.790.387.384.989.786.485.290.087.087.791.188.5

71.070.065.096.095.087.0114112103144139129177167156200198182249246225274270248312306282373365337396386356443434400461456418

94.492.293.394.893.593.995.094.494.895.394.795.095.595.195.495.695.295.595.995.495.796.195.595.896.195.695.996.395.796.095.995.495.796.095.595.796.095.495.9

89.592.389.989.391.490.390.092.290.886.890.488.384.690.087.390.691.990.690.792.391.490.492.491.190.392.591.090.593.091.289.892.691.090.392.891.291.793.392.1

92.090.083.0122122111146145132182179164223214198257256233320319290352349318400397362479474432507500457568561513593592538

94.393.093.694.893.794.295.194.595.095.494.795.295.495.195.595.695.095.495.895.495.895.995.495.895.995.495.896.095.495.996.095.495.896.095.495.895.995.495.8

91.594.992.993.694.794.193.694.894.291.493.792.589.693.691.694.095.094.594.294.994.594.195.494.894.195.394.694.295.895.093.495.394.494.095.794.895.295.895.5

8576677621070874971129010501160146011701310190014901680207017101890259021302360298024402710328026502960401032303620424034103810498040104470496040604500

156102133129931151359712012286107142941201289511713599122120871081178310412488110104729011279981067895

342271338281231282281230281259210257278222274257212258256211257283232283272221271277224275276224274288234286273224273

2.3151.3661.6131.7921.6571.9042.3462.6943.0893.2302.7633.2443.1143.4403.7163.2122.7023.4083.5463.3494.2243.8923.4354.3974.1423.6204.4324.9604.3445.6454.1532.7924.1715.0763.1474.3044.1202.4883.296

MLU1314

IE3IE2IE3IE3IE2IE3IE3IE2IE3IE3IE2IE3IE3IE2IE3IE3IE2IE3IE3IE2IE3IE3IE2IE3IE3IE2IE3IE3IE2IE3IE3IE2IE3IE3IE2IE3IE3IE2IE3

Output[kW]Type Voltage

[V]

Load characteristic50% load 75% load 100% loadFrequency

[Hz]

Rated current

[A]

Input difference from standard

motor[kW](with 100% load)

Rated speed[min-1]

Starting current

[A]

Starting torque[%]

Maximum torque[%]Current

[A]Efficiency

[%]Power factor

[%]Current

[A]Efficiency

[%]Power factor

[%]Current

[A]Efficiency

[%]Power factor

[%]

Efficiency class

1312

Consider the following points for speed control by using an inverter to drive a premium efficiency motor.● Increase of the generated loss and starting characteristics● Decrease of the cooling capacity in a low-speed region● Bearing service life and mechanical strength in a high-speed region of 60 Hz or higher● Generation of surge voltage

1. Allowable torque characteristics

The output voltage of an inverter contains a harmonic component. This causes a higher generated loss of the motor than when it is driven by a sine wave as in a commercial power supply, leading to a temperature rise of the motor. Meanwhile, the motor is cooled by its own fan mounted on the shaft. However, the air volume of the fan decreases when the rotational speed is reduced, which causes a decrease in the cooling capacity of the motor. Accord-ingly, pay attention to the motor temperature when using the product at a low rotational speed.

Fig. 1 Representative 4P models (frame size 225S or larger)

2. Starting characteristics

Unlike when using a commercial power supply, inverter driving is restricted by the inverter current. Generally, the starting torque is lower than when driven by a commercial power supply. This torque can be increased to some extent by adjusting the amount of torque boost in the V/F pattern. When an even higher starting torque is required, it is necessary to increase the capacity of the inverter and motor.

5. High-speed operationWhen a motor is driven in a high-speed region of over 60 Hz, the bearing service life may be reduced for reasons such as increased vibration, which limits the maximum speed. In addition, noise, strength, service life, etc. may pose problems with power transmission mechanisms such as the coupling, belt, chain and gear. Please contact their respective manufacturers for details.

6. Surge voltageWhen a 400-V-class motor is driven by a PWM inverter that uses a high-speed switching device such as an IGBT, surge voltage may be generated depending on the power voltage, cable length and installation condition. This surge voltage may cause the motor insulation to deteriorate. The maximum value for the motor terminal voltage is 1300 V line voltage. If a surge voltage exceeding this value is generated, reduce the surge voltage by fitting an AC reactor, surge suppression filter, etc. on the inverter output side.

4. Vibration

1) When the operation frequency for inverter driving is different from the commercial power frequency, resonance with the enclosure is generated at a certain rotational speed band, and this may result in a larger vibration. If this happens, measures such as improving the foundation of the motor installation or of the coupling may be required.

2) When used at a frequency higher than the commercial power frequency, vibration increases as the speed increases.

7. Electrolytic corrosion of bearingsWhen an inverter is used to drive the motor, electrolytic corrosion may be developed on rare occasions depending on the bearing grease, wiring, load and operation conditions. If any measure to deal with electrolytic corrosion is required, please consult us in advance.

[Reference] JEM-TR 169"Supplement to the application guide for low-voltage three-phase squirrel-cage induction motors forgeneral purposes driven by inverters"

3. Noise

1) Generally, inverter driving involves higher electromagnetic noise than when using a commercial power supply because of the effect of the inverter. When used at a frequency higher than the commercial frequency, the ventilation sound increases as the rotational speed increases.

2) Please contact us for details of noise reduction measures, which include use of a low-noise inverter and provision of a noise-re-duction reactor between the inverter and the motor.

Note 1) The above torque characteristics are based on operation in combination with Fuji inverters.Note 2) The torque at 100% is the allowable torque [N･m] when each output is 60 Hz.

200

150

100

50

00 20 406Hz 60

Frequency [Hz]

Continuous operation at 100%1-minute operation at 150%

Torq

ue [%

]

INVERTER DRIVING OF PREMIUM EFFICIENCY MOTORSTYPICAL STRUCTURAL DRAWINGS Premium Efficiency MotorOutdoor

Frame size: 250M

Frame size: 315M

(16)

(19)(20)(21)

(22)

(23) (24)

(25)

(1) (2)(3) (6)(4) (9) (10) (11) (13)

(17)

(12) (7)

(8)

(18)

(1)

(2)

(6)

(4)(3) (5)

(9) (10)(11)(13)(14) (16) (17)(12)

(19)

(20)

(21)

(22)

(23) (24)

(25)

(7)

(15)

(8)

(18)

Internal fanAir guideInner end cover on operation sideBracket on operation sideGrease inletBearing on operation sideOuter end cover on operation sideRotating diskC-shaped retaining ring for shaftShaftShaft end keyGrounding screw

(14)(15)(16)(17)(18)(19)(20)(21)(22)(23)(24)(25)

(1)(2)(3)(4)(5)(6)(7)(8)(9)(10)(11)(12)(13)

No. No.Part name Part nameFan coverExternal fanC-shaped retaining ring for securing external fanBearing opposite operation sideInner end cover opposite operation sideBracket opposite operation sideTerminal boxHanger boltStator iron coreRotor iron coreStator frameRotor conductorStator winding

2. Rotational speed

The generated loss of the motor is reduced as compared with conventional standard efficiency motors and the rotational speed is inclined to be slightly higher (slip is inclined to be smaller). For square reduction loads such as pumps and fans, attention must be paid because the power requirement may be increased in propor-tion to the increase of the rotational speed, leading to increased power consumption.(*Square reduction load: load that varies in proportion to the square of the rotational speed)

● Motor characteristics (starting current, rotational speed, load factor)● Motor installation environment (dimensions, mount)● Peripheral devices (magnetic switch, thermal overload relay)

1. Starting currentLosses of various parts have been reduced as much as possible in order to improve the motor efficiency. For that purpose, the resistance of various parts (winding, rotor) has been reduced, which makes the starting current inclined to be higher than that of conventional standard efficiency motors.

4. Motor peripheral devices

1) The peripheral devices may require reconsideration due to an increase of the magnetic switch, starter or motor starting current. When using devices from other manufacturers for replacement, please contact the respective manufacturers.

2) Thermal overload relayAs with Item 1, the setting of the thermal overload relay shown in Fig. 3 may require reconsideration due to an increase of the starting current.

To achieve an energy-saving effect by improving the efficiency, which is the biggest feature of premium efficiency motors, it is necessary to study products from various perspectives including their selection, operation and maintenance.

3. Load factor and efficiency

As shown in Fig. 2, motor efficiency reaches its maximum at a load factor of approximately 75 to 100% The energy-saving effect can be maximized by selecting so that the motor load factor is between 75 and 100%. If the load factor is extremely low, the motor capaci-ty must be reconsidered. If there is any load variation or rotational speed variation, you are recommended to fit an inverter for optimized control according to the rotational speed and load.

1514

Thermal overload relay settingFig. 3

Reset button Trip indicating window

Test button Stopper

TEST TRIP

HRESET

NO 98 97 95

24 30

RCA 36

96 NC

A 3

TR-N2/3

5. Other1) Motor mass

To improve efficiency, premium efficiency motors are inclined to be heavier than conventional standard efficiency motors. In particular, when using a motor installed on a moving object or with a mount that is not robust, take appropriate measures separately.

2) Notes on useThe descriptions in this catalog are intended to help the user select a model. In actual use, please read the "Instruction Manual" that comes with the motor carefully to ensure correct use.

3) Star-delta startingFor star-delta starting, be sure to install a model with a magnetic switch (3-contact type) on the primary side.

4) Outdoor type structureThe leg mounting type and flange mounting type have different waterproof structures. Please order a type that is appropriate for the mounting method. For use in an environment subject to explosive gas or dust, choose an explosion-proof type.

Note) Generally, a larger motor capacity offers higher motor efficiency.

Fig. 2 Graph representing the relationship between the load factor andefficiency (representative model)

300kW160kW55kW

100

90

800 25 50 75 100

Effic

ienc

y[%

]

Load factor [%]

USE OF PREMIUM EFFICIENCY MOTORS HOW TO ORDER

1. To place an order, please provide the following information. For motors of other than the Fuji standard types, you will need to provide details of your requirements.

2. When using the product for any of the following applications, please contact us in advance.(1) Use on vital equipment*1 or equipment that may affect human safety and have a serious impact on the maintenance of public functions*2

requires special consideration.*3 Be sure to contact us in advance. Using the product without giving special consideration may lead to serious accidents.

(2) Notify us in advance when using the product for clean rooms, food processing machines, etc. Use of a standard product as it is without subjecting it to special treatment may result in a leakage of grease or oil through the joint between a bearing shield and frame or shaft penetration. Special consideration is required for use in an environment where oil should be avoided.

(3) Bearings are not subjected to treatment against electrolytic corrosion. If directly connected with the load, electrolytic corrosion may occur due to the shaft voltage. For use in applications that may involve electrolytic corrosion, measures such as use of isolation coupling are required.

*1: Operating room devices, life-support systems (artificial dialysis, incubators, etc.), toxic and other gas and smoke extraction systems, equipment made compulsory by various laws and regulations such as the Fire Service Act and Building Standards Act, various safety systems and other equivalent systems

*2: Systems for air, train, maritime and other traffic control and equipment to control such systems, systems for controlling nuclear power stations, communication control equipment and other equivalent systems

*3: Have adequate discussions with device designers on the installation, operation and management of the product and construction in advance with regards to a backup system available for use in the event of product failure

1 Voltage V Frequency: 50Hz, 60Hz, 50/60HzClass of rating: S1 (Cont. MCR), Ambient temperature at altitude up to 1000m: 40˚C, ˚C,

2 Rotor: Squirrel-cageEnclosure and Degree of protection: TEFC, IP55, TEFC, IP44,

3 Quantity, required x Item No. x

4 Application

5 Output kW

6 No. of poles/Syn. speed / min-1

7 Mounting-Type of construction: IM B 3 (Horizon.), IM V 1 (Verti.) B3 V1

8 Location-Installation Indoor Outdoor

9 Insulation class 155(F)

10 Temperature rise limit of winding with resist. method [k]

11 Starting methodFor Star-delta ( ) starting: Load torque during run-up assumed as a quadratic function of speed

12 Terminal box: (1) Flexible leads, Fixed terminals, (2) Cable entry opening: Hole, Pipe thread, (3) External cable spec: No. of cables & cores, conductor mm2,

Overall dia/inner sheath dia(4) Location of box

cable, core, mm2

/ aidmmLeft Right Top

13 Coupling methodBelting data: Belt type-qty. Pulley PD-width [mm] and mass [kg] are required.When the motor's shaft extension is directly mounted on the shaft with the blower's impeller, please provide data of the impeller (including drawings showing size, mass and moment of inertia).

Direct con. single shaft ext.

14 Vertical mounting: Normal/Momentary design ext. thrust force in N

Down. Up

15 Bearings: Grease anti-friction Yes

16 Accessories: Shaft ext. key

17 Painting: Fuji std. practice Yes

18 Characteristics (1): Fuji design Yes

19 Permissible load J [kg·m2]

20 Direction of rotation: seen from drive end of motor CCW CW

21 Direction of rotation of motor fan Bi(both) Uni(one)

22 Fuji motor type/Frame No. /

23 Applicable standard

24 Attached dwg No. for reference

Remarks

Note: ( 1) Guaranteed values are subject to tolerances per standards. There are no upper limits on tolerance for locked-rotor torque.Remarks (1) Test: Characteristics are determined with the Equivalent circuit method. (2) Materials: Japanese standards. (3) Threads and dimensions: Metric.

DOL

"B"rise(80) "F"rise(105)

03A1-E-0017c

225S-355K[FRAME NUMBER]

2019-9(I19c/B16)SI1FOLS Printed in JapanInformation in this catalog is subject to change without notice.

Gate City Ohsaki, East Tower, 11-2,Osaki 1-chome, Shinagawa-ku,Tokyo 141-0032, JapanPhone: +81-3-5435-7190 Fax: +81-3-5435-7475URL: www.fujielectric.com/

Notes on safety

[1] The descriptions in this catalog are intended for assisting with model selection. Before actual use, read the "Instruction Manual" carefully to ensure correct use.

[2] These products are not designed or manufactured for use in vital devices or systems.When considering products mentioned in this material for special applications such as nuclear power control, aerospace, medical care or traffic devices or systems for these purposes, inquire our sales representative. For use in any equipment where failure of the products may lead to life-threatening consequences or serious damage, be sure to provide a safety system.

Premium efficiency motors feature lower generated loss and generally have slightly higher rotational speeds than standard efficiency motors. If the load is a pump or blower and a standard efficiency motor is replaced with a premium efficiency motor, the rotational speed is increased, resulting in increased motor output. Despite the high motor efficiency, increased output may cause increased power consumption. The resistance (primary and secondary) has been lowered for reducing copper loss and the starting current is inclined to increase, which may require changing of the breaker.

Notes on adoption of premium efficiency motors

2, 4, 6P Output: 45 to 375 kW

2, 4P Output: 400 to 450 kW 8P Output: 30 to 250 kW

3 Phase Premium Efficiency Motor [IE3 class]3 Phase Standard Efficiency Motor [IE1 class]

FUJI LOW-VOLTAGEINDUCTION MOTORS