ZW7-40.5 outdoor vacuum circuit breaker

ZW7-40.5 series outdoor vacuum circuit breaker

Summary

This type circuit breaker is the three phase 40HZ outdoor high voltage switch gear , The 12kv system is mainly used for agricultural network and urban network, as division and load current, overload current and short circuit current, and can also be used in other similar places.

Main Characteristics

1. vacuum arc extinguishing,  strong breaking capacity

2. Simple structure , maintenance free

3. Good insulation ability, strong prevention ability .

4. Can equip with a spring or electromagnetic operating mechanism . Reliable mechanical performance , no fire and explosion hazards

5. Current transformer inside , accuracy level : 0.2

6. Condensation controller inside , ensure the circuit breaker can running reliable at a certain temperature and humidity

Regular Working Conditions

1.  Ambient temperature : -30 ℃  ~  +40 ℃

2.  The sea level height not above 2500m

3.  Wind pressure ： Not exceed 700 pa

4.  Seismic intensity  : No more than 8 degrees

5.  Pollution level : III

6.  Maximum daily temperature difference :  No more than 25 ℃