Page 28 - YINGMING POWER(HIGH VOLTAGE)

YINGMING POWER

ZN63A(VS1)-12

INDOOR HIGH VOLTAGE VACUUM
CIRCUIT BREAKER

Overview
ZN63A (VS1) -12 indoor high-voltage vacuum circuit breaker is an indoor switchgear of three-phase AC 50Hz rated voltage of 12kV power system, as
a protection and control unit for power grid equipment, industrial and mining enterprise power equipment. It is suitable for places requiring frequent
operation at rated working current, or frequent short circuit current.
The circuit breaker adopts the integrated design of the operating mechanism and the circuit breaker body, which can be used as a fixed installation unit,
or can be equipped with a special propulsion mechanism to form the role of a handcart unit.

Model meaning
VS 1 - 12 / □ - □

Rated short-circuit breaking current (kA)
Rated current (A)
Rated voltage (kV)
Product design serial number
Indoor high voltage vacuum circuit breaker

Environmental conditions

◆ Ambient temperature: not higher than + 40 ℃ , not lower than -15 ℃ (storage and transportation at -30 ℃ are not allowed);
◆ Altitude: no more than 1000m;
◆ Relative humidity: daily average value is not greater than 95%, monthly average value is not greater than 90%, saturated vapor pressure average value
is not greater than 2.2×10-3MPa; monthly average is not greater than 1.8×10-3MPa
◆ Earthquake intensity: no more than 8;
◆ No fire, explosion, severe pollution, chemical corrosion and severe vibration.

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