Mining Explosion-proof And Intrinsically Safe Type Vacuum Combination Switch

We export and supply Mining Explosion-Proof And Intrinsically Safe Type Vacuum Combination Switch in Hefei, Anhui Province, China.

1.Applicable Scopes:-
It is used in coal mines containing explosive gas(methane) and coal dust. In the three-phase neutral power supply system with rated voltage 1140V(660V), AC 50Hz, it can control and protect the startup or stop of three-phase squirrel-cage asynchronous motors and can change the phase sequence after the motor stops.
2.Product Features
a.Using intrinsically safety type processor to control circuit, it can prevent and control short circuit or spontaneous accidents caused by earth fault
b.The functions of combination switch adopts Siemens PLC ,the industrial computer takes a real-time monitoring to system ,the self-developed application software is flexible to operate, applicable to two-speed dual-drive, two-speed single-drive ,program-controlled, independent non-program-controlled, two-speed single-drive plus independence
c.Drawer structure for independent protection ,easy and convenient to maintain.