Application:
  ZJZ2-4.0/1140(660)M Mining explosion-proof and intrinsically safe lighting integrated protection device.It is suitable for coal dust and explosive gas (methane) underground coal mine. It can control the power supply of 127V level lighting signal equipment, and the power supply is introduced as 50 Hz 1140 V or 660 V.

Technical advantages and functional features:
1.Quick door openning structure:
2.It can voltage conversion,no need to pull out the dry transformer change;
3.With short circuit,leakage,leakage blocking protection function and insulation monitoring function.

Main technical parameters
Rated capacity:KVA
Rated voltage(V):1140.660/127
Rated current(A):2.02,3.49/17.36
Allow the temperature rise:75 ºC




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