24kV Vacuum circuit breaker

20-24kV

Indoor fix type VCB

Product parameters:

· Indoor switchgear installation
· Three phase three wire
· Rated voltage: 20kV, 22kV, 24kV
· Rated current: 630-4000A
· Short-circuit breaking current: 20-40kA
· Short-circuit closing current(peak): 50-100kA
· Installation type: Fix type
· Standard: IEC, ANSI, GB
· Type name: UNVS1-22, ZN63-24, VS1-24

General

UNVS1-12 (ZN63) series indoor vacuum circuit breaker is a three-phase AC 50-60Hz, rated voltage of 20kV, 22kV, and 24kV indoor switchgear, control and protection for industrial and mining enterprises, power plants and substations , electrical facilities , and for frequent operation place .Adopting VET operating mechanism and circuit breaker integrated , design can be used as a fixed installation unit can also be equipped with special advance mechanism , the com position of handcart unit used. Some of the main circuit can use the whole solid seal post, in order to achieve smaller circuit breakers, high reliability , maintenance—free, can be equipped with UN-P28-12(GZS) and other handcart switch cabinet in the home can also be used with fixed XGN switchgear.

Standard
All UNISUN Electric breaker are in conformity with IEC standards, and recommendations IEC60694、IEC6227-100. Breakers in conformity with specific country standards can also be supplied. (IEEE, GB).

Specification data sheet

 

Rated voltage

 

kV

 

12

 

24

 

36

 

40.5

Rated frequency

Hz

50 -60

50 – 60

50 – 60

50 – 60

 

Rated normal current

 

A

 

630…4000

 

630.25

 

630…3150

 

630…3150

 

Rated short-circuit breaking current

 

kA

 

16.31.5

 

40

 

50

 

63

 

16.31.5

 

16.4

 

16.4

 

Rated short-circuit making current

 

kA

 

40.8

 

100

 

1254)

 

158

 

40.8

 

40.1

 

40.1

 

Rated duration of short- circuit4) 

 

 

s

 

 

3

 

 

3

 

 

3

 

 

3

 

 

3

 

 

3

 

 

4

Fixed- / withdrawable

Version

 

 

• / •

 

• / •

 

• / •

 

•/ –

 

• / •

 

• / •

 

• / •

Max. overall dimensions (fixed Version)

 

mm 

a  

b

c

 

  

150-275

205-310

450-700

424

461-5996)

 

  

210-275

310

570-700

424

5996)

 

  

210-275

310

600-750

459

6088)

 

  

275

310

750

459

677

 

  

210-275

310

570-700

424

631-661

 

  

280/360

328

8957)/1000

555/6867)

1575

 

  

280/360

328

8957)/1000

555/6867)

1575

Weight

kg

73-105

94-180

147-260

265

100-110

290-365

290-365

Embedded Pole

 

 

Assembled Pole

       

 

  • Products can be customized by customer requirements, above data is standard data, customized data please contact us.

Overall dimension

  • Products can be customized by customer requirements, above dimension may change, correct dimension please contact us.

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