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ZW55-72.5 Outdoor High-voltage Vacuum Circuit Breaker
Negotiable
Zhejiang Ziguang Electrical Equipment Co., Ltd.
China
No.3, 22nd Street, Eastern New District, Wenling City, Taizhou City, Zhejiang Province
010-83910265
Online Contact
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Product Introduction

This VCB is the new green generation VCB. It adopts monopole vacuum interrupter, which is safe, reliable and can stand extreme low temperature. The N2 of high purity is filled as insulation gas between vacuum interrupter and ceramics. The spring-loaded cam linkage makes remote-control possible. This VCB has simple structure, high current breaking ability, safe operation and no risk of explosion. It is suitable in places of frequent operation for the loads close-opening and the opening of fault current.

Product Parameters

No.

Item

Unit

Value

1

Rated voltage

kV

72.5

2

Rated current

A

1600/2500

3

Rated frequency

Hz

50

4

1min power frequency withstand voltage (wet) (dry) phase to phase, phase to earth/fracture

kV

135

180

5

Lightning impulse withstand voltage (peak) phase to phase, phase to earth/fracture

kV

380

6

Rated short circuit breaking current

kA

31.5/40

7

Rated short circuit breaking times

Times

20

8

Rated peak withstand current (peak)

kA

80

9

Rated short-time withstand current/duration

kA/S

31.5/4

10

Rated short circuit making current (peak)

kA

80

11

Resistance of main circuit

μΩ

≤100

12

Mechanical life

Times

6000

13

Ambient temperature

℃

-45~+50
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