ZW20B-12 Smart Integration Outdoor High-voltage Vacuum Circuit Breaker
Negotiable
China
No.3, 22nd Street, Eastern New District, Wenling City, Taizhou City, Zhejiang Province
010-83910265
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Product Introduction

The circuit breaker is a combination of switching technology, modern network technology and computer processing technology in one of the outdoor distribution equipment. It adopts mature three-phase box sealing structure, highly intelligent and sets protection, monitoring and control in one combined operation. It has stable closing-open operation quality and supports a variety of communication protocols. The modular design makes it easy to upgrade and maintain. It is suitable in substation, industrial and mining enterprises, urban and rural power distribution grid and places of frequent operation.

The installation of disconnector and three-phase linkage is on your choice. The fracture of disconnector is obviously visible in the OFF state and has anti-error-lock with the breaker body, which makes it safe and easy to maintain.

Product Parameters

No.

Item

Unit

Value

1

Rated voltage

kV

12

2

Rated current

A

630

3

Rated frequency

Hz

50

4

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

kV

34

42/48

5

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

kV

75/85

6

Rated short circuit breaking current

kA

20,25

7

Rated short circuit breaking times

Times

30

8

Rated peak withstand current (peak)

kA

50/63

9

Rated short-time withstand current/duration

kA/S

20,25/4

10

Rated short circuit making current (peak)

kA

50,63

11

Resistance of main circuit

μΩ

≤150 (without isolation)

≤200 (isolation)

12

Rated N2 gas pressure (gauge pressure)

Mpa

0.01

13

Mechanical life

Times

10000