The ZW43 vacuum circuit-breaker 1. Long mechanical life 2. Reliable quality 3. Reasonable price 4. Safe, easy operation Quick Details Place of Origin: ZHEJIANG China (Mainland) Brand Name: Hengtong Model Number: ZW43  application : high voltage rated current: 630A rated voltage:12kv apperance: stainless steel or iron Overview ZW43-12 model outdoor vacuum circuit device (hereinafter referred to as circuit device) is Rated voltage 12KV, three-phase AC 50Hz outdoor distribution equipment. And Short-circuit current. For the main break, when closing the power system load current, overload current And Short-circuit current. ,And industrial and mining enterprises in the substation for power distribution system for the protection and control purposes, And frequent operation of rural power grid places. The circuit device is small, Weight light, anti-condensation, maintenance-free features, can adapt to poor weather Condition and dirty environment. .ComplystandardGB1984 AC high voltage circuit deviceGB11022 high-voltage switchgear and control equipment standard of the common technical requirementsGB311.1-6 high-voltage power transmission equipment, insulation coordinationGB763 exchange of high-voltage device when the heat in the long-term workGB2706 exchange of high-voltage device dynamic and thermal stability test methodGB3309 high-voltage switch equipment of mechanical tests at room temperature DL/T593 high-voltage switch equipment of common order technical Condition Main technical parameters

Serial number	Project	Unit	Parameter
1	Rated voltage	KV	12
2	Rated frequency	Hz	50
3	Rated Current	A	630
4	Rated short-circuit breaking current	KA	20
5	Rated peak withstand current(peak)	KA	50
6	Rated short-time Withstand current	KA	20
7	Rated short circuit making current (peak)	KA	50
8	Mechanical life	Times	10000
9	Rated short-circuit breaking current breaking number Times	Times	30
10	power frequency withstand voltage (1min):(wet) (dry) Phase, on the ground / Fracture	KV	42/48
11	Lightning impulse withstand voltage(peak) Phase, on the ground/Fracture	KV	75/85
12	2 Times Loop 1min frequency voltage	KV	2

 

ZW43, 12KV outdoor high voltage vacuum circuit breaker Metal box