1. Function
This mine explosion-proof type integrated protective device is applicable in underground
coal mines with explosive and dangerous gas(methane)and coal dust, and it is used for
remote control of 127V hand-held electric coal drill.

2. Model



3. Characteristics
3.1 With protective functions of short circuit, leakage lockout, leakage action etc.
3.2 This device adopts leader loop, which can start, operate or stop electric coal drill in
remote distance, and the cable is not electrified when the drill doesn't work, so it is safe
and reliable.