CES, CESD and CPH Series Explosionproof Plugs and Receptacles

CES and CESD receptacles with CPH plugs are used:

  • With portable electrically operated devices such as motor-generator sets, compressors, conveyors, portable tools, and lighting systems
  • In locations which are hazardous due to the presence of flammable vapors or gases
  • In damp or corrosive locations
  • At petroleum refineries, chemical and petrochemical plants, and other process industry facilities
Amperages 30 or 60A
Configurations 2W 3P or 3W 4P
Hub Sizes 3/4" or 1 1/4" (Receptacle)
Phases 1 or 3
Receptacle Housing Materials 30A - copper-free aluminum; 60A - Feraloy® iron alloy
Back Box Material Feraloy® iron alloy
Plug Body Material Copper-free aluminum
Contact Materials Brass or hard-drawn copper


  • CES and CESD receptacles are equipped with a delayed action rotating sleeve which prevents complete withdrawal of the CPH plug in one continuous movement
  • The delayed action feature permits the plug to be used as an emergency push-pull switch
  • Receptacles are factory sealed to simplify installation and wiring; external seals are not required
  • The 30 ampere receptacles are provided with pressure terminals for field connection; the 60 ampere receptacles have flexible leads; plugs are equipped with solder terminals
  • Two arrangements are provided for the 3/4" and 1 1/4" conduit hubs