Mining explosion-proof lighting integrated protection device The device is applicable to coal mines containing explosive gas, supplying the control and protection of power for the 127V explosion-proof electric devices.  With fast-open door structure The voltage can be converted, there is no need to pull out dry type transformer to change It has protection functions of short circuit, leakage, leakage lockout and and insulation monitoring function Rated capacity4.0KVA Rated voltage1140, 660/127VNo-load 133V Rated current2.02, 3.49/17.36 Allowable temperature rise75