The steel armored withdrawable AC metal-enclosed switchgear is generally applied for the controlling protection and monitoring during receiving, transmitting and starting of large high-voltage motors, etc. in industrial and mining enterprises.  It has the "Five Preventive" interlocking function, preventing the following: operating circuit breaker hand trolley with load, incorrect operation of the circuit breaker, closing the circuit breaker when the grounding switch is in the closed position, accidental entry into electrified compartments, and closing the grounding switch when the circuit is live. The switchgear is equipped with a vacuum circuit breaker, making it a highly reliable distribution device.

Operating Conditions:

- Ambient air temperature: -15°C to +40°C

- Altitude: not exceeding 4000m

- Relative humidity: daily average not exceeding 95%, monthly average not exceeding 90%

- Earthquake intensity: not exceeding 8 degrees

- Installation sites should be free from fire, explosion hazards, severe pollution, chemical corrosion, and intense vibration.

Main Technical Parameters:

- Rated voltage: 12kV

- 1 min power frequency withstand voltage: 42kV

- Rated impulse withstand voltage (peak): 75kV

- Rated frequency: 50Hz

- Rated current: up to 5000A

- Protection grade: IP4X for casing, and IP2X when the compartment door or circuit breaker cubicle is open

- Weight: 700-1200kg