Ark•Gard® ENR Value Series (M3) Explosionproof Receptacles

ENR (M3) Receptacles are used:

  • With portable electrical equipment such as compressors, tools, lighting systems, and similar devices
  • In areas made hazardous by the presence of flammable vapors and gases or combustible dusts
  • Wherever portable electrical equipment is likely to be transferred from hazardous to non-hazardous areas
  • When power requirements do not exceed 20 amperes
Amperages 15 or 20A
Voltages 125 or 250V
Types Dead end or through feed
Hub Sizes 1/2"; 3/4"; 1"
Housing Material Die cast copper-free aluminum
Interior Material Krydon® fiberglass-reinforced polyester
Contact Materials Receptacle blade - brass; Receptacle switch - silver
Gasket Material Neoprene


  • Ark•Gard® 2 receptacle incorporates three spring-loaded slide keys that prevent the receptacle face plate from being rotated until the ENP plug is fully inserted into the receptacle; to make the connection, the ENP plug is fully inserted, and the receptacle face moved inward by pushing the plug forward; the plug is then rotated, closing the circuit; as rotation begins, the plug becomes locked in the receptacle and cannot be accidentally disengaged; in making or breaking the circuit, any resulting electrical arc is confined in the factory-sealed chamber
  • Factory-sealed chamber encloses the potential arcing components between two explosionproof threaded joints; these threads are specially coated to guarantee freedom of movement, which ensures on-off action; no additional seals are required
  • One-piece molded gasket seals cover plate and ENP plug when plug is inserted, providing full environmental protection at the receptacle face
  • Top-hinged cover design with 45° downward angle provides superior protection in damp, wet, and dirty locations
  • Field assembly is accomplished with standard tools
  • Use standard EDS back boxes