ZMD12/630-20 ceramic vacuum arc extinguishing chamber-[Quotation-data]--Shanghai Huabang Industrial Business-www.91way.com

Product name：

ZMD12/630-20 ceramic vacuum arc extinguishing chamber

specification：

Category：

Price：

factory price

Brand：

Shanghai

Place of Origin：

China

Available Quantity：

batch

delivery cycle：

Spot goods (or inquire by telephone)

Shanghai Beiyuan Industry and Trade Co.,Ltd
+86-21-66770508
+86-139101609058

91way@163.com
13916500500(Wechat)

ZMD12/630-20 ceramic vacuum arc extinguishing chamberDetailed product description：

ZMD12/630-20 ceramic vacuum arc extinguishing chamber

Model number	ZMD12/630-20 ZMD12/630-20(I)
rated voltage	12KV
rated current	630A
Rated short-circuit breaking current	20KA
Rated short-circuit closing current (peak)	50KA
Rated peak withstand current	50KA
Rated short-time withstand current	20KA
Rated short-circuit duration	4S
Rated short-time (lmin) power frequency withstand voltage	42KV
Rated lightning impulse voltage	75KV
Circuit resistance under rated contact pressure	≤25μΩ
Rated short-circuit breaking current breaking times	50 times
Rated current breaking times	10000 times
mechanical life	10000 times
Contact self closing force	150±50N
Contact reaction force under contact opening distance	210±60N
Allowable thickness for electrical wear of contacts	3mm
quality	3.5kg