Explosion-proof Vacuum Combination Switch

We are involved in exporting and supplying Explosion-Proof Vacuum Combination Switch to our clients in Hefei, Anhui Province, China.

1. Application scope:
Mining Explosion-proof and Intrinsically Safe Low-voltage Vacuum Combination Switch (hereinafter referred to as combination switch) is used in coal mines containing explosive gas and coal dust. It can logically control and protect the startup or stop of three-phase squirrel-cage asynchronous motor under rated voltage 1140V (660V), AC 50Hz, and can change the phase sequence when the motor stops. The switch is especially applied to centralize monitoring of mining, transportation and other kind of working faces with centralized dynamic loads. The switch has advantages like high automation level, convenient and intuitive man-machine dialogue, easy to networking, stable performance, sensitive protect, reliable operations, etc. It is a perfect upgrade product for domestic mine digitization.
2. Product features:
a) The shell of the combination switch is cuboids with quick-actuating closures structure. Reliable mechanical interlock and electric interlock system will ensure closure actuated after power cut off. Each unit of the switch is modular structure in drawer plugged style.
b) The core control unit is Siemens PLC and has functions like programmable live and expandable points of output and input.