It is suitable for the three-phase AC 50 Hz, rated voltage of 3.3, 7.2, 12 KV indoor high-voltage power distribution equipment. Widely used in industrial and civil cable ring network and terminal power supply, suitable for urban residential area, small secondary substations, open and close house, industrial and mining enterprises, shopping malls, airport, subway, small and medium-sized power plants, hospitals, stadiums, railway, tunnel, etc in circuit system for receiving and distribution of electrical energy, it has simple structure, flexible operation, easy installation, reliable interlock etc.
Ambient temperature: -25℃~+40℃
Altitude: ≤2000m (If it is more than 2000m, please specify, when ordering.)
Relative humidity: ≤95%（25℃）
Earthquake intensity: ≤8 degrees
Installation environment: In the place of no fire, explosion hazards, serious pollution, chemical corrosion and violent vibration.
