VT12(ZN85)-40.5 indoor HV vacuum circuit breaker

1. Product Introduction

VT12(ZN85)-40.5 indoor HV vacuum circuit breaker is suitable for the places which rated current frequently operated or break short circuit current many times. VT12(ZN85)-40.5 indoor HV vacuum circuit breakers conformed to the standard of GB1984 (AC/HV circuit breaker), JB3855 (3.6-40.5kV indoor AC/HV vacuum circuit breaker) and IEC. VT12(ZN85)-40.5 indoor HV vacuum circuit breaker has interlock function, namely can be used in handcart unit and fixed type unit manual mechanism and fixed mechanism.

2.Product Parameter (Specification)

Main technical date of VT12(ZN85)-40.5 indoor HV vacuum circuit breaker

Rated voltage                                   40.5kV

Rated frequency                                 50Hz

Rated lighting impulse withstand voltage             185kV

Rated power frequency withstand voltage (1min)       95kV

Rated operated order                              o-0.3s-co-180s-co       

3. Product Service condition

Normal service condition ofVT12(ZN85)-40.5 indoor HV vacuum circuit breaker

Ambient environment temperature:-25℃~+40℃;

Relative humidity: Daily average value shall not exceed 95%,

Monthly average value shall not exceed 90%;

Saturation steam pressure: Daily average vapor press value shall not exceed 2.2kPa,;

Monthly average vapor press value shall not exceed 1.8kPa;

Elevation shall not exceed1000m;

Degree of earthquake shall not exceed 8;

Ambient air has not serious pollution, such as dust 、smoke、aggressive and flammability

gas、vapor or salt mist.

Special condition of VT12(ZN85)-40.5 indoor HV vacuum circuit breaker

The product can be made by client’s requirement.