ZN23-40.5 and ZN39-40.5 series HV vacuum breakers are three-phase AC 50HZ,rated voltage 40.5KV indoor HV distribution equipments.They match with JYN1-35/GBC-35 switch cabinets.They are used for controlling and protecting transmission and distribution systems of power plants and transformer substations,especially in the case of frequently operation.The breakers are cart type with reasonable structure,simple maintenance and safe reliable operation.
Rated lightning impulse withstand voltage(Peak value)
1min Power frequency withstand voltage
Rated short circuit breaking current
Rated short time withstand current
Rated peak value withstand current
Rated short circuit duration time
External & Build in Dimension