ZW32m-12 630A Permanent Magnet Vacuum Circuit Breaker

ZW32m-12 630A Permanent Magnet Vacuum Circuit Breaker

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Product Description

ZW32M permanent magnet outdoor high-voltage alternating-current vacuum circuit breaker is a new permanent magnet outdoor high-voltage alternating-current switchgear of our vacuum circuit breaker series products. Its rated voltage is 12 kV. It applies to places with such voltage level, including overhead lines, industrial and mining enterprises, power stations, substations, etc. Under its normal operating conditions and specified technical parameters, it can satisfy the protection requirements of systems connected with the grid in service. It has good performance in short-circuit making and breaking. It is characterized by automatic re-making, stable operation and long electric life.

ZW 32M outdoor high-voltage alternating-current vacuum circuit breaker is produced in line with the following standards and codes.

IEC 62271-100 High-voltage switchgear and controlgear

GB/T 11022-2011 Common specifications for high-voltage switchgear and controlgear standards

GB 1984 High-voltage alternating-current circuit-breakers

GB 311.1 Insulation co-ordination for high voltage transmission and distribution equipment


Environmental Conditions 

Ambient temperature: - 40℃~+40℃

Altitude:  ≤2000m

Relative humidity: ≤95% (daily average) or ≤90% (monthly average)

Wind speed: ≤34m/s (equivalent to a pressure of 700pa on a cylindrical surface)


Structure and Function

Main Technical Parameters

Description Unit Data
Ratedvoltage KV 12
Ratedcurrent A 630
Ratedfrequency Hz 50/60
Ratedshort-circuitbrekaingcurrent kA 16/20/25
Meachicallife Time 30000

Note:Please contact the factory to confirm the latest parameters

Outline and installation dimension

high voltage circuit breaker<br />parts of vacuum circuit breaker<br />circuit breaker



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