Outdoor Vacuum Circuit Breaker, ZW43-12/24F

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The outdoor vacuum circuit breaker is a switch device designed for three phase AC 50Hz outdoor power distribution network systems with rated voltage of 12/24kV, mainly used for breaking and closing load current, overload current and short-circuit current.

Outdoor Vacuum Circuit Breaker, ZW43-12/24F

These outdoor vacuum circuit breakers are suited to protect and control of electrical power in substations, industrial and mining enterprises, cities and rural areas networks where frequent operations are required.

Technical Parameters

Item	Unit	Parameters
Rated voltage	kV	12	24
Rated frequency	Hz	50
Rated current	A	630	630
Rated short-circuit breaking current	kA	20, 25	20,25,31.5
Rated peak withstand current	kA	50, 63	50,63,80
Rated short-time withstand current	kA	20, 25	20,25,31.5
Rated short-circuit making current(peak)	kA	50, 63	50,63,80
Mechanical endurance	Times	10000
Power frequency withstand voltage(1min)(dry/wet)	kV	42/48	65/79
Lightning impulsewithstand voltage(peak)	kV	75/85	125/145

Circuit breaker specifications

Item	Unit	Parameters
Rated voltage	kV	12	24
Rated current	A	630, 1250	630, 1250
Rated frequency	Hz	50
Power frequency withstand voltage (dry)	kV	42/48	65/79
Lightning impulsewithstand voltage(peak)	kV	75/85	125/145
Rated short-circuit breaking current	kA	20，25	20,25,31.5
Rated short-circuit making current(peak)	kA	50，63	50,63,80
Rated peak withstand current	kA	20，25	20,25,31.5
Short-time withstand current(4S)	kA	50，63	50,63,80
Rated operating sequence		C-0.3s-CO-180s-OC
Mechanical endurance	times	10000

12kV 24kV 24kV