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Appleton® Mercmaster™ III MLAQ852G4NA1 Enclosed Gasketed Induction Luminaire With Globe, (1) Inductive Lamp, 100 to 120 VAC, Epoxy Powder Coated Housing
Manufacturer: Appleton
Manufacturer part number: MLAQ852G4NA1
Availability: Ships in 5-7 days.
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Enclosed Gasketed


Mercmaster™ III Induction Luminaires are virtually maintenance free and provide up to 100,000 hours lamp life, making them ideal for areas where access for relamping and maintenance is difficult. These rugged, corrosion resistant enclosed and gasketed Luminaires are suitable for hazardous and adverse locations, including areas exposed to moisture, dust and dirt, corrosive chemicals, harsh weather and extreme temperatures.
Appleton® Mercmaster™ III Induction Luminaire, Enclosed Gasketed, 100 to 120 VAC, 0.46 A, Inductive Lamp, 85 W Lamp, 1 Lamps, 100000 hr Average Life, Prismatic Glass Lens, NEMA 4X Enclosure, Rigid Pendant Mounting, Cast Copper-Free Aluminum Housing Material, Epoxy Powder Coated Housing Finish, 15.17 in H x 12.06 in W Dimensions


For use in areas where access for relamping is difficult, reliability is essential and the environment is costly to maintain, cold environment applications, marine and wet locations, and in a wide range of industrial, chemical processing and other areas where flammable gases and vapors or combustible dusts are present under conditions defined by NEC class 1, division 2, in non-hazardous areas where severe weather conditions, excessive moisture, dirt, dust and corrosive atmospheres are a problem


UL 1598/844/1598A | CSA C22.2 No. 250 | C22.2 No. 137 Certified | C/US CSA Certified | Class I, Division 2, Groups A, B, C, D, Class II, Division 1 and 2, Groups E, F, G


  • Instant start and restrike
  • High lumen output and efficacy (up to 73 lumens per watt)
  • Fixtures operate safely in a 40 deg C (104 deg F) ambient temperatures
  • Good lumens maintenance provides less than 30% depreciation after 60K hours of operation
  • Virtually maintenance free
  • Ultra long 100000 hours of life keeps maintenance costs to a minimum
  • Starts in temperatures as low as -40 deg C (-40 deg F)
  • Low total harmonic distortion (less than 10%)
  • No cycling at end of life
  • Modular design allows scores of fixture component combinations to meet installation and lighting needs
  • Cone hood fixtures for pendant mounting shed dust, dirt and combustible fibers, and provide an increased surface area for effective heat dissipation
  • Reflector choice includes standard dome and 30 deg angle types, both made of fiberglass reinforced white polyester that is highly resistant to unusually corrosive applications
  • Reflectors are vented for cooler, dirt free operation and maintained lumen output
  • They secure to ballast housing with stainless steel screws threading into stainless steel inserts
  • For high corrosion resistance, fixture housing, mounting hoods and guards are copper free (4/10 of 1% max) cast aluminum with baked epoxy finish, electrostatically applied for uniformity
  • Hinge has high lip for added safety during installation and servicing
  • Hinge and bolt construction ensures 360 deg compression at all points on ballast housing gasket for positive sealing
  • Swing away design of captive bolt and nut simplifies servicing
  • Body gaskets and globe gaskets are high temperature silicone rubber
  • All Mercmaster™ III mounting hoods have provision for easy field installation of fuses in fixtures


Amperage Rating:0.46 A
Average Life:100000 hr
Country of Origin:MX
Dimensions:15.17 in H x 12.06 in W
Enclosure Type:NEMA 4X
Housing Finish:Epoxy Powder Coated
Housing Material:Cast Copper-Free Aluminum
Lamp Type:Inductive
Lamp Wattage:85 W
Lens Type:Prismatic Glass
Mounting Type:Rigid Pendant
Number of Lamps:1
Voltage Rating:100 to 120 VAC