Zw7-40.5 outdoor high-voltage vacuum circuit breaker

Product Description

Main characteristic
a . Uses the vacuum extinguishing of arc, opens breaks the ability strongly, the electricity life is long, mechanical life *0,**0;
b . Structure simple, exempts the maintenance, the overhaul period is not long;
c . Insulating ability good, the anti- contamination ability is strong;
d . May match the spring or the electromagnetism holds the drive mechanism, the machine capability is reliable, but frequently operates; Does not have the fire and the detonation hidden danger;
e . The internal installation current transformer measuring accuracy reaches 0.2 level, may realize the three-phase differential motion protection;
f . congeals the dew controller, can maintain the circuit breaker under the certain temperature humidity the reliable movement.