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Contact Person : Mr. Li Mingjie
Company Name : Wuxi Xishan Nanfang Welding Equipment Co., Ltd.
Tel : 86-510-88798638-8007
Fax : 86-510-88799668
Address : Jiangsu,Wuxi,No.8, Yangguang Road,Donghutang Town, Xishan District, Wuxi City, Jiangsu Province. China
Country/Region : China
Zip : 214196

ZN28A -12 indoor high-voltage vacuum circuit breaker(VCB)

Product Detailed

this series of high-voltage vacuum breaker(VCB) is applicable for the electric system,industrial and mining enterprises.

This series of indoor high-voltage vacuum breaker(VCB) is applicable for the electric system, control and protect the power supply and distribution in the industrial and mining enterprises, which is three-phase AC 50HZ, 12KV and other frequent operating places. Its characters are as follows: fast recovery speed of medium strength, high insulting strength, low rate of electric, long endurance, low maintenance energy, no explosion, no pollution, low noise and high applicability and so on..

Main technical parameters
Rated voltage	KV	10	Rated short-circuit duration time	S	4
The highest voltage	KV	11.5	Times of rated short-circuit breaking current times	Times	30
Rated short-time frequency endurable voltage	KV	42	Breaking times of rated current	Times	1000
Rated lightning impulse endurable voltage( peak voltage)	KV	75	Mechanical life	Times	1000
Rated current	A	630 1250 1600	Time of reclosing automatically without current	S	0.3
Rated short-circuit breaking current	KA	12.5 20 31.5	Reclosing time	S	0.1
Rated short-circuit opening current( peak)	KA	31.25 50 80	Opening time	S	0.06
Rated peak endurable current	KA	31.25 50 80	Dimensions(width* depth* height)	mm	768447574
Rated short-time endurable current	KA	12.5 20 31.5	Weight	kg	100

ZN28A -12 indoor high-voltage vacuum circuit breaker(VCB)

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