ZW7-40.5 outdoor high voltage vacuum circuit breaker

ZW7-40.5 Series outdoor high voltage vacuum circuit breakers, the main switchgear of AC 50/60Hz, 40.5KV, is assembled with a spring operating or electromagnetic operating mechanism. It can be operated to switch on and off by remote control, and it can also be charged and switched on and off manually. The design function of the breaker complies with the requirements of GB1984-89 and IEC56 "AC high voltage circuit breaker". It is mainly used in the outdoor 33KV，35KV distribution system for control and protection, as well as for normal operation and protection against short circuits in urban, rural grids, or industrial enterprises. Its overall structure is supported by porcelain insulators, with a vacuum interrupter built in the upper insulator and the downside insulator used for support. The breaker is applicable to frequent operating places and has the advantages of good sealing, anti-aging, high voltage withstanding, non-flaming, non-explosion, long working life, easy installation and maintenance, etc.

Product feature：

For frequent operation place Good sealing, anti-aging, high pressure, noburning, no explosion, long life, convenient installation and maintenance features.

Application environment:

1, Altitude:not exceed 2000m

2, Ambient temperature:not higher than +60°C,not less than - 30°C

3,Relative humidity:daily average relative humidity:≤95%;monthly avergae relative humidity ≤90%, daily avergae saturated vapor pressure ≤2.2KPa; monthly average value: ≤1.8KPa.

4, Earthquake intensity: ≤8 degree

5, The installation should be free from fire, explosion, severe vibration, chemical corrosion and serious pollution.

Outline dimensions:

Central operating mechanism type

Lateral operating mechanism type

Technical parameters: