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BackHome > Products > Vacuum circuit breaker
Vacuum circuit breakerZW32M-12630-25 Permanent magnet and spring double mechanism outdoor vacuum circuit breaker
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Zw32m-12 / 630-25 permanent magnet outdoor vacuum circuit breaker (hereinafter referred to as the circuit breaker) is an outdoor power distribution equipment with rated voltage of 12kV and three-phase AC 50Hz. It is mainly used to disconnect and close the load current, overload current and short-circuit current in the power system. It is suitable for protection and control in substations and distribution systems of industrial and mining enterprises, as well as places with frequent operation of rural power grid.

This type of product is operated by permanent magnet mechanism; Because the permanent magnet operating mechanism is provided with holding force by the permanent magnet to keep the switch in the opening and closing position, the number of mechanical parts is small and the mechanical transmission chain is short, which greatly improves the reliability and mechanical life of the switch.

The circuit breaker has the characteristics of small volume, light weight, anti condensation and maintenance free, and can adapt to severe climatic conditions and dirty environment.

No.

Item

Unit

Data

1

Rated Voltage

KV

12

2

Rated insulation level

1min P.F withstand voltage

Dry

KV

To earth 42 / Fracture 48

Wet

KV

34

Lightning impulse withstand voltage

KV

To earth 75 / Fracture 85

3

Rated Current

A

630/1250

4

Rated short-circuit breaking current

KA

25

5

Rated operating sequence

KA

O-0.3s-CO-180s-CO

6

Rated short circuit breaking times

Times

30

7

Rated short-circuit making current (peak)

KA

50/63

8

Rated peak withstand current

KA

50/63

9

Rated short-time withstand current

KA

25

10

Rated short circuit duration

s

4

11

Opening time under rated operating voltage

ms

15~50

12

Closing time

ms

25~50

13

Mechanical life

Times

10000

14

Rated operating voltage and rated voltage of auxiliary circuit

V

200 110 24

15

Energy storage time at rated voltage

s

<10

16

CT

ratio

A

50~600

capacity

VA

15

17

PT

output voltage

V

200 110 24

capacity

W

600

18

Overcurrent regulation

A

2~10

19

Delay Time

ms

40~850

20

Quick break current

A

18

21

Remote control distance

m

30

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