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ZW20A-12 Outdoor High Voltage Vacuum Circuit Breaker

ZW20A-12 Series Outdoor High Voltage Vacuum Circuit Breaker

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ZW20A-12 Series Outdoor High Voltage Vacuum Circuit Breaker

Application

The ZW20A-12 is an advanced version of the ZW20-12 column vacuum circuit breaker with a mature box seal. Filled with SF6 gas, it has a good sealing performance, so that it is not affected by the external environment. It is a maintenance free product. Its spring operating mechanism adopts direct chain active transmission and multi-stage tripping system, which has high reliability and is the best choice for the circuit breaker on the pillar.

No.

Item

Unit

Data

1

 Rated voltage

kV

12

2

 Rated frequency

Hz

50

3

 Rated current

A

6301000

4

 Rated short circuit breaking current

kA

12.5162025

5

 Rated peak withstand current

kA

31.5405063

6

 Rated short time tolerance current4s

kA

12.5162025

7

 Rated short circuit opening and closing current

kA

31.5405063

8

 Institution life

time

10000

9

 Rated short open circuit current switch frequency

time

30

10

 Rated current open circuit frequency

time

10000

11

        Power frequency withstand voltage (1min) : phase, ground/fracture

kV

42/48

12

 Lightning shock withstand pressurepeakphase, ground/fracture

kV

75/85

13

        Power frequency withstand voltage of the secondary circuit )(1min

kV

2

14

 Net weight

kg

140

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