VS1-12 / 630-25 (ZN63A-12 / 630-25), VS1-12 / 1000-25 (ZN63A-12 / 1000-25), VS1-12 / 1250-25 (ZN63A-12 / 1250-25)
VS1-12 / 1250-31.5 (ZN63A-12 / 1250-31.5), VS1-12 / 1600-31.5 (ZN63A-12 / 1600-31.5)
VS1-12 (ZN63A-12) type indoor high voltage vacuum circuit breaker, fixed voltage three-phase AC 50Hz power system for the indoor 12kV switchgear, as network equipment, industrial and mining enterprises to protect and control unit power equipment suitable for the rated operating current frequent operation, or to short-circuit current breaking several places.
The circuit breaker operating mechanism and the circuit breaker body-in-one design, either as a fixed installation unit can also be equipped with a special advance mechanism, composition Handcart unit role.
A ambient air temperature: up to + 40 ℃, lower limit of -15 ℃;
b Altitude: ≤100m (For higher altitudes, the rated insulation level corresponding increase);
c Amplitude: Earthquake column is no more than 8 degrees;
d daily average relative humidity less than 95%, on average less than 90%
e no fire, explosion, heavy pollution, chemical corrosion and severe vibration.
The main technical parameters