24KV Vacuum Circuit Breaker

Each vacuum interrupter is embedded in a solid-insulated pole made of weather-proof cyclo aliphatic epoxy resin. This enables a small design as well as resistance against environmental effects. The breaker switch unit is comprised of three poles, the operating mechanism, and the operating mechanism housing. The sequence of the poles is A -B – C or 1 – 2 - 3 (sequence left to right when viewed from the lower terminal side of the recloser switch unit.

Breaker principle and design of 24KV Vacuum Circuit Breaker

ZW32 series Breakers are used in distribution systems. Circuit breakers are used to make and break normal and fault currents. Breakers are fully equipped with sensors and a controller to provide a means of protection and control. In case of a line fault, breakers can break and make currents several times, thus avoiding longer network interruptions due to temporary faults. The manufacture, design, and testing of the vacuum recloser is based on current standards IEC 62271-111:2019

Technical parameters of 24KV Vacuum Circuit Breaker

Products Type


Maximum System Voltage


Rated Continuous Current


Rated Frequency


Short Time Withstand Current


Mainly Active Load Current


Number of Load-break Operations


Short-circuit Making Current (peak)


Number of Making Operations

5 times

Cable Charging Current


Line Charging Current

Closed Loop Circuit Current


Transformer Magnetizing Current


Wet Condition-10sec Ph- Ph-Eth, Across Interrupters


DryCondition-1min,Ph- Ph, Phase to Earth


Dry Condition - 1 min AcrossInterrupter


Phase to Phase, Phase to Earth


Across Interrupter


Internal Arc Test

20kA /0.1 sec

Arc Extinction Medium


Insulation Medium


Creepage Distance (Silicon)


Dry arcing distance


IP Level


Closing/Opening Time


Mechanical Operations (Guaranteed)


Operating Temperature (*Manual Type)


Zhuhai GopowerSmart Grid Co., Ltd. is one of the earliest electric power equipment company. We provide 11kv load break switch, load break switch 11kvand etc. Want to know more? Please contact us.


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