Appleton MercmasterTM LED Generation 3 Series Luminaires

Product Category: Electrical Explosion Proof
Product Brand: Appleton


  • Enclosed and gasketed fixtures suitable for use in:
    • A wide range of industrial, chemical processing and other areas where flammable gases and vapors or combustible dusts are present
    • Marine and wet locations
    • Suitability includes use where there may be simultaneous exposure to flammable gases and vapors or combustible dusts
  • Typical applications include:
    • Power plants
    • Processing plants
    • Chemical plants
    • Oil refineries
    • Waste and sewage treatment
    • Other areas where dust, water, dirt and rough usage are a problem


  • Modular design provides thousands of combinations for maximum versatility.
  • Design is suited for low mounting heights, from 2 m (7 ft), up to 9 m (30 ft)
  • Seven light outputs provide up to 20,100 lumens.
  • Choice of optics for optimal light distribution in a variety of applications: Type I, Type III, Type V or Type V Wide.
  • Choice of color temperature (CCT): 5000K cool white, 4000K neutral white or 3000K warm white with minimum 80 CRI.
  • Customize to the application requirements with four different globe options: clear and diffused polycarbonate, clear glass, or prismatic glass refractor.
  • Seven standard mounting hood designs allow for mounting in any location. Uses same mounting hoods as Mercmaster III.
  • Retrofit adapters for Crouse-HindsTM, Mercmaster II, and Killark  hoods available. See Mercmaster LED Adapters.New Watertight Pendant Hood with IP 68 cord grip available to address water ingress into luminaire via conduit.
  • Hinge has high lip for added safety during installation and servicing. Hinge and bolt construction assures 360° compression at all points on fixture housing gasket for positive sealing. Swing away design of captive bolt and nut simplifies installation.
  • Rugged housing with superior thermal design translates to long luminaire life.
  • Luminaire housing has wiring compartment with terminal block separate for easy wiring access.
  • Standard screw-type terminal block can accept UL/CSA 4 to 6 mm2 (26-10 AWG) wire.
  • Standard 6 kV surge protection.
  • Heavy duty, high temperature silicone gaskets.
  • Photometric data and electronic drawings available upon request.
  • Ambient Temperature: -40 ̊C to +65 ̊C (-40 ̊F to +149 ̊F)
  • Standard NPT threads with M20 option.
  • LED L70 reported at 60,000 hours.
  • Field replaceable globes and LED driver.

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