OJON Indoor type Disconnectors

1OJON 4 GB

OJON Indoor type Disconnectors

Catalogue

2

OJON 4 GB

OJONIndoor type Disconnectors

1...24 kV

Contents

General ..................................................................................................3

Technical data and ordering information

�� Standards and Operating Conditions .............................................4�� Installation .....................................................................................4�� Ordering Information ......................................................................4�� Rated Voltages and Voltage Withstand Levels ..............................4�� Technical Data ..............................................................................5

Accessories�� Selection table ..............................................................................6�� Earthing knives ..............................................................................7�� Disconnector Control .....................................................................7�� Motor Operation Mechanism UEMC 40_ .......................................7�� Operating Arm ...............................................................................7�� Manual Operating mechanism, alternative A, OJO-ZA 1 ................7�� Manual Operating mechanism, alternative B, UEKO 2C3 ..............8�� Support bearing .............................................................................9�� Accessories to be ordered separately ...........................................9�� Auxiliary switches .........................................................................10�� Interlocking ....................................................................................12�� Locking device ..............................................................................12�� Locking coil ...................................................................................12�� Extention shaft and support bearing ..............................................13�� Fuse-bases ...................................................................................13

Dimension Drawings

�� OJON 1-1/1000 ja OJON 1-1 A 2500 .............................................14�� OJON 1-1 A 2500/E3 ja OJON 1-1 A 4000/E2 .............................15�� OJON 1-10/630 E1 ja OJON 1-24/630/E ......................................16�� OJON 3-1 A 1000 ja OJON 3-1/1600 ...........................................17�� OJON 3-1 A 2500 ja OJON 3-1 A 4000 ........................................18�� OJON 3-10/630 ja OJON 3-10/1000.............................................19�� OJON 3-10/1600 ja OJON 3-12 A 2500 .......................................20�� OJON OJON 3-12 A 4000 ja OJON 3-24 A 630 ...........................21�� OJON 3-20/1000 ja OJON 3-20/1600...........................................22�� OJON 3-24 A 2500 ja OJON 3-24 A 4000 ....................................23�� Terminals ......................................................................................24�� Disconnector earthing knives.........................................................25�� Disconnector control .....................................................................26�� Auxiliary switches .........................................................................27�� Installation and interlocking ...........................................................28�� Extension bushing and support bearing .........................................32�� Fuse-bases ...................................................................................33�� Manual operating device ................................................................35

3OJON 4 GB

OJONIndoor type Disconnectors

1...24 kV

GeneralCompact dimensions, direct currentpaths, double-knife constructionand cast resin insulators are commonto all OJON -type disconnectors.The high short circuit strength ofthese disconnectors is a result ofthese features. Contact pressureis achieved by spiral springs whichcompress the knives.

Silver-plating prevents the contactarea of the contact and knives fromageing, and keeps the temperaturerise within the limits set by thestandards. Owing to the double-knifeconstruction, forces needed tooperate the disconnectors remainmoderate even at high rated currents.

The operating levers of the discon-nectors can be mounted on a flat

base. Busbar joints OJON�ZWJ 5and 6 may be used for disconnec-tors rated 2500 A and 4000 A. Theframes and levers of the discon-nectors are painted green, and theshaft terminals are treated withanti-rust varnish. The knives arepainted red, which makes theirposition clearly visible and gives apleasant look to the whole dis-connector.

The contacts of the disconnectorsare made of copper bar for 630 A andof cast copper for 1000...4000 A.Aluminium busbars can be con-nected, using jointing grease,to 630...1600 A, disconnectors,OJON�ZWJ 5 and 6 terminals andearthing switches.

Special features of OJONdisconnectors� high short-circuit strength� versatile control devices� suitable for aluminium busbars� compact dimensions� silver-plated contacts� cast resin insulators� direct current paths� double-knife construction� red knives � position clearly

indicated

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038

4

OJON 4 GB

Indoor type Disconnectors


Standards and operating conditionsThe disconnectors meet the requirements of IEC Publ. 129 (1984) and the Safety Regu-lations of the Finnish Electrical Inspectorate (Sähköturvallisuusmääräykset). In accordancewith the standards, the ambient site temperature for indoor disconnectors, must be�25 oC...+35 oC, and the access of unusually high quantities of dust, smoke, causticgasses and humidity to the site must be prevented.Disconnectors OJON 3�1 A 1000, OJON 3�1/1600, OJON 3�1 A 2500 and OJON 3�1A 4000 have been approved by the Register of Shipping of the U.S.S.R.

MountingNormally the disconnectors are mounted in the upright position with the hinges at thebottom. Other positions are also possible provided that the operating or locking deviceensure that the knives stay in the open or closed position. Wall mounting with the knivesin a horizontal position must, however, be avoided, as the knives may bend downsideways from the bearings.

Ordering information1. Type and quantity.

2. Rated voltage Ur.See tables 1 and 2, pages 4 and 5.

3. Rated current Ir.

4. Rated peak withstand current Ip.Ip of the disconnector > network impulse short-circuit current Is.The distance of the nearest post insulator is shown in table 2.

5. Rated short-time withstand current Ik.Ik of the disconnector > network I1s. Ik is given in table 2 as 1 s value.Any other length of continuous short-circuit current Ik2 of the network isreduced to 1 s value with the formula below.

The formula is valid when the duration of tk2 > 1s.Ik = Ik2 Ö tk2 / s. tk is the duration of Ik2.

6. Accessories: see table 3 on page 6.

Operating voltage and voltage withstand levelsIn accordance with IEC 694 (1980)

Table 1

1 kV 3.6 kV 12 kV 24 kV

Lighting impulse voltage 1.2/50 msAcross the isolating distance 23 46 85 145Between phases and to earth 20 40 75 125

Power-frequency voltage 1 minAcross the isolating distance 12 12 32 60Between phases and to earth 10 10 28 50

Withstand voltages

Highest permissibleoperating voltage

5OJON 4 GB

Indoor type disconnectors


OJON 3�1 A 1000 OJON 3�24 A 630 OJON3�10/1000

Technical data

Table 2

Type Rated Rated Rated Rated Distance of Control Isolating Weight Commercial codevoltage normal short-time peak nearest post torque distance

current current withstand insulator fromcurrent diconnector

r.m.s. post insulatorOJON kV A kA 1s kA Nm mm kg

3�1A1000 1 1000/1250 2) 50 100 360 mm 40 + 20 60 173�1/1600 1 1600/2000 2) 80 120 400 mm 50 + 20 70 433�1A2500 1 1) 2500/2900 2) 90 150 350 mm 70 + 30 70 493�1A4000 1 1) 4000/4600 2) 90 150 350 mm 130 + 40 65 65

3�10/630 12 630 31,5 80 3 x a 40 + 10 145 203�10/1000 12 1000 40 100 3 x a 45 + 15 165 353�10/1600 12 1600 50 100 3 x a 60 + 20 160 523�12A2500 12 2500 60 150 3 x a 150 + 30 140 713�12A4000 12 4000 60 150 3 x a 160 + 30 155 90

3�24A630 24 630 20 50 3 x a 45 + 15 265 253�20/1000 24 1000 30 75 3 x a 60 + 20 270 483�20/1600 24 1600 40 100 3 x a 100 + 20 265 653�24A2500 24 2500 60 150 3 x a 180 + 30 240 873�24A4000 24 4000 60 150 3 x a 200 + 40 260 109

a = phase distance

(1 ) Highest permissible operating voltage 3.6 kV, see table 1 page 4.(2 ) Higher value in acc. with IEC Publ. 408 (1972) when Un < 660 V.

Note: We can also deliver disconnectors with larger phase distances than detailed in the dimension drawings.

Single pole disconnector current values are the same as the corresponding three phase unit detailed in the table.

97-1

032

97-1

041

97-1

033

6

OJON 4 GB

Indoor type disconnectorsAccessoriesTechnical data and ordering information

Description Type

OJON�ZWJ 5 1) o o o 24

OJON�ZWJ 6 1) o o o 24

OJO�ZMA 10 o 7,25

OJO�ZMA 38 o 7, 25

Operating arm YASKA 25 o o o o o o o o o o o o o o o o 7, 26

NWA�ZS 5 o o o o o o o o o o o o o o o o 7,26

NWA�ZS 6 o o o o 7, 26

Operating hook NWA�ZH 6 o o o o o o o o o o o o o o o o 7, 26

OJO�ZA 1 2) o o o o o o o o o o o o o o o o 7

UEKO 2C3 o o o o o o o o o o o o 8

OLAN_AL 1 o o o o o o o o o o o o o o o o 10

OLAN + OLAN-ZT 4 o o o o o o o o o o 11

OJO�ZAY 11 4) o o o o o o o o o o o o o o o o 35

Locking device OJO-ZE 1 3) o o o o o o 29

OJO-ZE 2 3) o o o o 29

OJO�ZLA 3 4) o o o o o o o o o o o o o o o o 12, 30

OJO�ZLA 6 5) o o o o o o o o o o 12, 30

UEKO-ZL 1 6) o o o o o o o o o o o o 12, 31

Extension shaft BDAM 25 x L o o o o o o o o o o o o o o o o 13

OJE�ZAA 25 o o o o o o o o o o o o o o o o 13, 32

Support bearing OJO�ZU 3 o o o o o o o o o o o o 13, 32

Accessories

Table 3

Terminals

Auxiliary switch

Locking coil

Pa

ge

Earthing switches

1) Also applicable for aluminium busbars.2) Depending on the mounting of the operating mechanism, the operating lever may turn below the mounting level.3) Prevents the horizontally mounted disconnector from closing under its own weight.4) For manual operating mechanism OJO-ZA 1.5) Mounted on the side plate of the disconnector.6) For use with manual operating mechanism UEKO 2C3.

OJO

�ZM

A 3

8

OJO

�ZM

A 1

0

OJO

N 3

�24

A 4

000

OJO

N 3

�24

A 2

500

OJO

N 3

�20/

1000

OJO

N 3

�24

A 6

30

OJO

N 3

�12

A 4

000

OJO

N 3

�12

A 2

500

OJO

N 3

�10/

1000

OJO

N 3

�10/

630

OJO

N 3

�1 A

400

0

OJO

N 3

�1 A

250

0

OJO

N 3

�1/1

600

OJO

N 3

�1 A

100

0

OJO

N 3

�10/

1600

OJO

N 3

�20/

1600

Disconnenctor

Ear

thin

gsw

itch

es

Joint sleeve forextension shaft

Insulatedoperating rod

Manual operatingmechanism

Connectinglevers + frame

7OJON 4 GB

AccessoriesEarthing knives, operating arms and manualoperating devicesTechnical data and ordering information

Earthing KnivesAs shown in table 3 (page 6) the 630 A OJON_ disconnectors can be suppliedwith either an upper or lower earthing knives. Earthing knives have the sameshort-circuit strength as the corresponding disconnectors.

The main switch and earthing knives are interlocked with a locking deviceso that they cannot be closed simultaneously. The locking device is normallyon the left side of the disconnectors. A locking device prevents the earthingknife from opening and closing under its own weight.

Disconnector controlThe following can be used as an operating mechanism for the disconnectors:� operating rod NWA�ZS 5 (>1 kV) or NWA-ZS 6 (< 1 kV) and hook end

NWA�ZH 6 and arm YASKA 25� manual operating mechanism OJO�ZA 1 or UEKO 2C3� motor-operated control mechanism UEMC 40_. Refer to catalogue

34 UEMC 36_ and 34 UEMC 44_.

Motor Operating device UEMC 40_The type and construction of motor operating device depends on the locationand accessories required. The device can be fitted to the disconnectorshaft or the front of the cubicle. When mounting on the shaft, check that thereis enough space between the disconnector shaft and mounting surface. Whenthe motor operating device is fitted on the front of the cubicle, the drive istransfered using a lever system. Local electrical control (Pushbuttons) of theoperating device is available.Manual operation is also possible by using an operating rod or control handlewhen a motor operating device is fitted.

Operating armThe simplest control mechanism is an operating arm and an operating rod.Opening of the disconnector can be prevented with locking coil OJO�ZLA 6.

Manual operating mechanism, alternative A,OJO-ZA 1The manual operating mechanism OJO�ZA 1 for mounting on the front wallof the cubicle, interlocks the disconnector in the extreme positions with thehelp of a stall lever. A suspended pin ensures retention in these positions. Theend that comes through the front panel of the cubicle is covered with aprotective cover that can be locked with a padlock. The manual operatingmechanism can be supplied both with locking coil OKO�ZLA 3 and auxiliaryswitch OLAN�AL 1. When there is no auxiliary voltage, the interlock (of thelocking coil) can be opened manually. In accordance with the standards, theclosing movement of the disconnector is from down-position to up-position.

Manual operating mechanismOJO-ZA 1 with accessories

Manual operating mechanismand angle link

Motor operating mechanismUEMC 40_

Disconnector fitted withearthing knives

98-1

042

98-1

039

93-1

065

98-1

060

8

OJON 4 GB

AccessoriesEarthing knives, operating arms and manualoperating devicesTechnical data and ordering information

Manual operating mechanism, alternative B,UEKO 2C3This manual operating mechanism comprises of a beveled gear on the endof a shaft from the disconnector, a joint fitted with a position indicator onthe front panel and a control tube joining the two parts. Due to the joint,the control tube can be moved through an angle of ±40 degrees from theverticle position. The tube is to be cut to a suiatble length when installing.The indicator locks the disconnector in the extreame positions. The operatingmechanism may also be locking with a locking coil UEKO-ZL 1 and padlock.By turning the angle of the beveled gears the operating direction of thedisconnector can be adjusted to always be the same.

Ordering information

Alternative A Alternative B1. Quantity and type designation. 1. Quantity and type designation.2. Types of shaft and intermediate rods. 2. Tube length 2500 mm if the standard

(Dimensions for A and B given in the table lenght of 1500 mm is too short.below and in drawing on page 35). 3. Additional accessories on page 6.

3. Type of support bearing.4. Accessories (e.g operating handle) see page 6.

Delivery lengths

Alternatives:Dimension A OJO�ZAA 1 x 1200 shaft , A max = 1200 mm

1 x 1800 , " = 1800 mm

Alternatives:

Dimension B OJO�ZAW 1 x 150 flat intermediate bar , B max = 230 mm1 x 700 , " = 780 mm

OJO�ZAW 2 x 1300 flat intermediate bar , " = 1380 mm2 x 1800 , " = 1880 mm2 x 2800 , " = 2880 mm

NOTE! If dimensions A and B differ from the standard dimensions the next standard size will be cutto a suitable length when mounting. Fine adjustment of the intermediate bars is between + 20 mm.

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048

9OJON 4 GB

AccessoriesSupport bearingTechnical data and ordering information

Support bearting

Description Type Application Page

Support bearing OJO�ZU 3 OJON 3�10 ... 24_ 32

To be ordered separately

Description Type Application, OJO-ZA 1 (UEKO 2C3) Page

Auxiliary switch OLAN 6 AL 1 6 change-over contacts 27OLAN 9 AL 1 9 change-over contacts 35

Power reduction levers and frame OJO�ZAY 11 For auxiliary switch 35

Locking coil OJO�ZLA 3 Locks the manual operating mechanism 30UEKO-ZL 1 (UEKO 2C3) into the extreme positions

Angle link YAEWK 3 26

Tubular intermediate OJ�ZDU 7 x 1500 Cut off to a suitable length when 35bar OJ�ZDU 7 x 2500 mounting. C can be min. 550 mm.

Operating handle OJO�ZAK 1 OJO ZA 1 26OJO�ZAK 2 OJO-ZA 1UEKO-ZK 1 (UEKO 2C3)

10

OJON 4 GB

Auxiliary switches


Auxiliary switchesAuxiliary switch OLAN-AL 1 can be fixed to the cubicle wall, in connection withmanual operating mechanism or to the frame of the disconnector. Themovement is transmitted from the shaft of the disconnector or manualmechanism to the switch with levers and intermediate bars. Switches areavailable with 6 or 9 change-over contacts. The contacts are silver-platedand are double breaking. Protection class is IP20.

Technical details of auxiliary switches

Insulation class 500 V

Continious load current 16 A

Breaking capacity over 5000 breaks when L/R < 40 ms

24 V� 16 A

60 V� 10 A

110 V� 5 A

220 V� 2 A

Mechanical life 10 000 operations

Position indicationThe auxiliary switch has a position indicator which can be used when adjustingthe movement transmission levers. The contact diagram shows the operationof the contacts as the function of the turning angle of the control lever

To be ordered separately� Terminals and cable glands MRRNL 16 tai 21� Universal tube terminal MRPA 16 tai 21� Pica sensor RPLA 16 tai 23� For additional parts see page 11

OLAN 6 AL 1, OLAN�ZT 4and YAWAS 6 fitted to

OJON 3-12 A 4000disconnector

Contact diagram

Connection diagram

The largest conductor size that can be connected is 4 square mm.

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029

11OJON 4 GB

Auxiliary switchesAdditional partsTechnical data and ordering information

Additional Parts

Parts Note Page

Description Type

To manual operating Transmission OJO�ZAY 11 35mechanism OJO�ZA 1 levers with frame

Adjustable lever YAWAS 6 Models of installation p.20 29

1. 630...4000 A2. 630...4000 A3. 630...1000 A

For fixing on Support and OLAN�ZT 4 on the left or the right side. 28OJON 3�10...24 kV intermediate link Choise of mode of instal-disconnector lation as effect by the

placing of the earthingswitches, locking coiland chock absorber.

OJON 3� + OLAN 9-only mode 3 and 4 ofinstallation.

For separate mounting Intermediate bar OJ�ZDU 3x2000 The bar is to be cut to a 28OJ�ZDU 4x2000 suitable length when

mounting

Adjustable lever YAWAS 6 For shaft diam. 25

1012

Mounting ofauxiliary switch

12

OJON 4 GB

Interlocking


InterlockingThe use of locking devices in connection with different disconnectors isdetailed in table 3, page 6.

A. Disconnector interlocking when subject to gravity orshort-circuit and other disturbances

When operating arm controlled, the disconnectors are interlocked with lockingdevice OJO�ZE_ or locking coil OKO�ZLA 6. When the disconnector ismounted in a horizontal plane, locking device OJO�ZE_ must always be usedto prevent the knives from closing under their own weight. Manual operatingmechanism OJO�ZA 1 locks the disconnector in the closed and the openposition with no additional equipment.

B. Disconnector interlocking to prevent unintentionaloperation

When operating arm controlled, locking coil OJO�ZLA 6, which is fixed to theframe of the disconnector is used. Manual operating mechanism OJO�ZA 1can be locked with a padlock or locking coil OJO�ZLA 3. Manual operatingmechanism type UEKO 2C3 can be locked with a padlock or locking coilUEKO-ZL 1.

Locking coilsThe auxiliary control voltage of locking coils (OJO�ZLA 3 and 6) is eitherDC or full-wave rectified alternating current. In the absence of voltage, theinterlock can be opened by pulling the armature with the operating rod or byhand. Locking coil OJO-ZLA 3 is used with the operating mechanism whilelocking coil used OJO�ZLA 6 is fixed to the left or right side of the disconnector.Locking coil UEKO-ZL1 is to be fitted to the manual operating mechanismUEKO 2C3 position indicating device on the inside of the cubicle.

Voltage of interlockup coil

Voltage OJO-ZLA 3, 6 UEKO ZL 1 Coil consumption andtime constant

24 VDC X X30 VDC X OJO-ZLA 3 12 W 40 ms48 VDC X X60 VDC X X110 VDC X X125 VDC X220 VDC X X230 VAC X 1) X 1) Rectifier included

Ordering information1. Type and quantity2. Coil voltage3. Is locking coil OJO�ZLA 6 on the right or the left side of the

disconnector.

Locking device, arm andauxiliary contacts fitted on

OJON 1-10/630/E1disconnector.

Locking coilOJO-ZLA 3

97-1

036

Locking coilUEKO-ZL 1

97-1

050

99-1

013

13OJON 4 GB

Interlocking


Extension shaft and support bearingWhen needed, the shaft of the disconnector can be extended with extensionshaft BDAM 25 x L. Extension sleeve OJE-ZAA 25 with its spring bolt pin and1 or 2 support bearings OJO-ZU 3 are then needed.

To be ordered separatelyExtension shaft dim. 25 x LDimension L must be given when ordering.Weight: 3.85 kg per meter

Fuse-basesThe frame of the fuse-bases is made of steel plate and the insulators of castresin. Fuse-links in accordance with DIN 43625 are suitable for the bases.

The fuse bases can be fitted with fuse blown axiliary contacts. The auxiliarycontacts are 1 NC rated at 10A.

To be ordered separatelyFuse cartridges -EBD CEF_. Refer to brochure CEF_CMF 1.Fuse changing handle O-ZHPA 5

Extending the shaft

97-1

034

Fuse bases12 and 24 kV

98-1

034

14

OJON 4 GB

M12

OJON-ZWJ 5 M12 M12

107,5 285

8 ø 25

8

64

107,5

40 16

281

174169

116

315

120

ø 15

8040

40

20

500

285

70°

Indoor type disconnectorOJON 1�1Dimension drawings

OJON 1�1/1000

1 kV 1000 A

OJON 1�1 A 2500

1 kV 2500 A

OJO

N1

2O

JON

13

15OJON 4 GB

Indoor type disconnectorsOJON 1�1Dimension drawings

OJON 1�1 A 2500/E3

1 kV 2500 A

OJON 1�1 A 4000/E2

1 kV 4000 A

OJO

N 1

5O

JON

16

To be orderedseparately

To be orderedseparately

16

OJON 4 GB


OJON 1�10/630 E1

12 kV 630 A

OJON 1�24/630/E

24 kV 630 A

OJO

N18

OJO

N11

R206

8 4 60M16

Ø 15

Ø 25230

385

17.575

228

292

445

150

M12

150110

345265

2040

72.5

75°

8 4

Ø 15

Ø 25340

122.5

17.5M1275

313

377

637

40

250 110 250

20

60 M16

495

375455

R316

75°

90°

17OJON 4 GB


OJON 3�1A 1000

1 kV 1000 A

OJON 3�1/1600

1 kV 1600 A

OJO

N 3

8O

JON

39

M16M12

530

360

330

8585

ø 15 60

ø 25

100100

262

174

151

70

57

�

228 195

20

15

236

94

90o

33

60o

M12

M16

620

590

110 80 26 110

285250

105,5

70

310

195

167

440

17

26

20

45

6

ø 15

200 200

65°90°

18

OJON 4 GB

Load type disconnectorsOJON 3�1Dimension drawings

OJON 3�1 A 2500

1 kV 2500 A

OJON 3�1 A 4000

1 kV 4000 A

OJO

N3

10

OJO

N3

11

M12

M12

OJON - ZWJ 5

M12

620

590

200 200

110 110

ø15

ø 25

285

105,5

210

45

R153

6

70 4080

322

145 40

250

90° 65°

OJON - ZWJ 6

M12M 12

620

590

110

200 200

90

14

ø 25

ø15 100 100

285250

45107,5

123

390

245

70

6

40

100

50

162 45

110

90°65°

R193

19OJON 4 GB


OJON 3�10/630

12 kV 630 A

OJON 3�10/1000

12 kV 1000 A

OJO

N 3

12

OJO

N3

13

��0��

370

185 92,540

Ø 25��

95

75

445

150150 450

400

228

8

��

��

0��

��

��

R206��

��

M16

544

531

490

220 220

100

150 150

60 45,5ø 15

ø 25

330295

105

85

260

230

422

380

460

90°75°

R210

20

OJON 4 GB


OJON 3�10/1600

12 kV 1600 A

OJON 3�12 A 2500

12 kV 2500 A

OJO

N3

_1

0O

JON

31

4

26

330 295

26 M16

M12

80

ø25

310

R240

85

272

505

97,5

500

220 220

490

544 150150

415

ø25

90°

75°

M12

M12

OJON-ZWJ 5

548

315

80 40

6

390 370

107.5

40

85

135

330

250

150 700

640

280 280

8 8 1664

150

Ø 25

107.5

R278

60°90°

21OJON 4 GB


OJON 3�12 A 4000

12 kV 4000 A

OJO

N 3

15

OJON 3�24 A 630

24 kV 630 A

OJO

N 3

16

OJON-ZWJ6M12 M12

M16

595

350100

45

45

390

45

107,5

267

85 20

370330

6

150 700

280 280

640

14 14

90

ø 25

150

115

67° 90°

R298

M16

M12

8ø 15

4

340

122,5

17.575

636

313

250 590

540

255 255

250

455

20

495ø 25

40

37575°

90°R316

22

OJON 4 GB


OJON 3�20/1000

24 kV 1000 A

OJON 3�20/1600

24 kV 1600 A

OJO

N 3

17

OJO

N3

_2

0

M12

M16

435

60

ø 25

250

138ø 15

250 664

610

280 280

4

105

334

400

138

85

635

485525

90°

75°

R315

26

520 435 400

26 M16

M12

80

Ø25

388

85

346

685

Ø15

138

605

280 280

610

664 240250

90°

75°

R340

23OJON 4 GB


OJON 3�24 A 2500

24 kV 2500 A

OJON 3�24 A 4000

24 kV 4000 A

OJO

N 3

18

OJO

N3

19

M12

M12

OJON-ZWJ 5

720390

80

500

40

10520

6

107,540 325

85

155

480440

250 840780

350

ø25ø20

350

250

168 64 8

R388

60°90°

M12

OJON-ZWJ 6 M12

M16

775425

100

4545

6

500

R 408

107,5

45 342

85

480440

155

250 840

780

350 350

14 1490

250

ø 25

67° 90°

24

OJON 4 GB

Terminals

Dimension drawings

2500 A terminal

OJON-ZWJ 5

4000 A terminal

OJON-ZWJ 6

OJO

NZ

WJ1

OJO

NZ

WJ2

To be ordered as required for2500 A disconnectors.

Silver plated electrolyticcopper.

Weight: 2.1 kg

To be ordered as requiredfor 4000 A disconnectors.

Silver plated electrolyticcopper.

Weight: 4.45 kg

107,5

40

2080

20 40 20

7,5

15

ø14 20

40

2080

20 40 20

M12

77

M16

M1250

100

45

14

107,5

90

40 20

118

80

25OJON 4 GB

A A

B

ø25

25

73

C

90°

90°

90°

Earthing knives

Dimension drawing

Disconnector earthing knives

OJO

ZM

A2

1

Earthing knife type Disconnector type A B C kg Note

OJO-ZMA 10 OJON 3-10/630 185 750 173 9,0

OJO-ZMA 38 OJON 3-24 A 630 255 1090 258 10,1

When ordering the positionof the earthing knife is to bestated (above or below).

26

OJON 4 GB

Disconnector control

Dimension drawings

Operating arm

YASKA 25

Operating rod

NWA-ZS 5

YA

SK

A

Operating handle

OJO-ZAK_

Angle link

YAEWK 3

YA

EW

K

NW

AZ

S5

Weight: 1,8 kgType WeightA kg

OJO-ZAK 1 330 1,2OJO-ZAK 2 500 1,6

Operation hook

NWA-ZH 6

Weight: 0.9 kg

OJO

Z1

NWA-ZS 6

Weight: 1,5 kg

Weight: 0,9 kg

Operatinghandle

UEKO-ZK 1

Ø 18

15

A

117Ø 25

Ø 35

UE

KO

ZK

1

NW

AZ

H6

NW

AZ

S6

(ø25.0 uritettu)

85

570

(Ø 25.0 splined)

27OJON 4 GB

Auxiliary switches

Dimension drawings

Auxiliary switch

OFC-ZA 1

Auxiliary switch

OFC-ZA 2

OFC

R21OFC

ZA1

Auxiliary switch

OLAN-AL 1

M8

Ø 8

Ø 12

A 30

48M8

Reikäaihio Pk 21, Pk 16

132

R45

100

29 85

25

90°

5° 5°

Type Change-over A Weightcontacts kg

OLAN 6AL1 6 136 1,5OLAN 9 AL1 9 172 1,8

OFCRN 12 A 3

343

101

OFCRN 24 A 3

101

343

Knock-out hole Pk 21. Pk 16

28

OJON 4 GB

Methods of mounting

Dimension drawing

Auxiliary switch support (right)

OLAN-ZT 4

ZT

4

Weight: 0,8 kg

Intermediate rod

OJ-ZDU 3 x 2000

Intermediate rod

OJ-ZDU 4 x 2000

ZD

U4

ZD

U3

Adjustment margin + 15 mm

Weight: 1,6 kg

Adjustment margin + 15 mm

Weight: 1,7 kg

If the mounting position isnot mentioned it is fitted inposition 4.

29OJON 4 GB

Methods of mounting and interlocking

Dimension drawings

Locking device

OJO-ZE_

ZE

Ø 12 hole drilled when fitting

Ø 8 hole drilled when fitting

Type A Weightmm kg

OJO-ZE 1 187 1,1

OJO-ZE 2 237 1,3

Adjustable lever

YAWAS 6

YA

WA

S

To be drilled when fitting Ø 5 +0,1+0

Weight: 0,8 kg

30

OJON 4 GB

Locking coil

OJO-ZLA 6

ZL

A6

Ø8 Drilled when fittingPosition indicator

Incoming cable gland can also be turned upwards.

Weight: 2,3 kg

+0+0,1

Locking

Dimension drawing

Locking coil

OJO-ZLA 3Z

LA

3

Weight: 1,1 kg

Position indicator

AMP No. 180909

31OJON 4 GB

Locking coil

UEKO ZL1

Locking

Dimension drawings

UE

KO

ZL

1

Front of the cubicle

32

OJON 4 GB

Support bearing

OJO-ZU 3

Extension bushing and support bearing

Dimension drawings

ZU

3

Mounting

To be used for 10...24 kV OJON-disconnector extension shaft support bearing.

Angle iron not included.

Weight: 0,35 kg

Extension bushing

OJE-ZAA 25Z

AA

25

Drill when assembling

Extension shaft

Disconnectors shaft

Weight: 0,52 kg

2 pcs spring pins included.

33OJON 4 GB

Fuse base for indoor use

Dimension drawing

Fuse base

OFCRN 12 A 3

By moving one insulator 3,6/7,2 kV e = 192 mm fuses can be fitted.The fuse base can be fitted with a blown fuse auxiliay contact, see page 27.The auxiliary switch is one NC contact.

OFC

R1

294

e = 292

Fuse linkDIN 43625276

233

163

8

M12x30/30

620

Ø17

Ø17 Ø15

95

20 490

366

180

30

Fuse base

OFCRN 24 A 3

OFC

R2

444

e = 442

Fuse linksDIN 43625

M12x30/30

8

371327

258

Ø17 514

620

Ø17Ø15M12

95 30

180

366

63820

34

OJON 4 GB

Fuse base for indoor use

Dimension drawing

Fuse base

OFCRN 36 A 3O

FCR

3

539

Fuse linksDIN 43625

e = 537

M12x30/30

8

478435

365

514

620

Ø15 Ø17M12

95

180366

72020

40

35OJON 4 GB

A

Poraa ø 55

Poraa ø 11

Max.40 o

90 o kiinni Ohjausputki ø 33,5 x 1500 mmPutken katk. pituus = A - 150 mm

Erottimen akseli

115 54

45

45

ø25 uritettu

180 o

Kiinni


OJO-ZA 1

ZA

Manual operating mechanism

Dimension drawing

Drilling the front plateFor removing the interlocking coil we recommend a coveredhole of 100 mm diameter for service access.Diagram for cover plate fixing with 8 mm holes.

Position indicator

Poraa Ø 2,2

For shaft

Drill Ø 10,2


UEKO 2C3

90° kiinni

Max.40°

180°

Drillø 2,2

Drill Ø 55

Drill Ø 11

90o closed

180o closed

Ø 25 splined

Transmission tube Ø 33,5 x 1500 mmTube length = A - 150 mm

Shaft of the disconnector

36

OJON 4 GB

Apparatus and Switchgear Business UnitP.O.Box 613, FIN-65101 Vaasa, FinlandPhone: +358 10 22 4000Fax: +358 10 22 44661

Ykk

ös-O

ffse

t O

y30

00,

99-1

0O

JON

4 G

B 9

9-10

Motor operating mechanism UEMC 40 A, Bja D -types mounted on the front of thecubicle.

Motor operating mechanism UEMC 40 K6types mounted on the body of thedisconnector.

99-1

011

99-1

012

Documents

OJON Indoor type Disconnectors