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Appleton® MLAQ852G4GA6 ML Series Enclosed and Gasketed Induction Light Fixture With Globe and Guard, HID Lamp, 277 VAC, Epoxy Powder Coated Housing
Manufacturer: Appleton
Manufacturer part number: MLAQ852G4GA6
Availability: Ships in 5-7 days.
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Enclosed and Gasketed


The Mercmaster™ III induction luminaire meets the NEC and CEC requirements for use indoors or out. They are suitable for hazardous and adverse locations, including areas exposed to moisture, dust and dirt, corrosive chemicals, harsh weather and extreme temperatures. Because they are enclosed and gasketed, you will never have to worry about corrosion from chemicals or vapors. They virtually maintenance free and provide up to 100000 hr lamp life, making them ideal for areas where access for relamping and maintenance is difficult. They have minimal lumen depreciation with no cycling at end of life.
Appleton® Induction Light Fixture, Enclosed and Gasketed, Series: ML Series, 277 VAC, HID Lamp, 85 W Lamp, 10000 hr Average Life, Prismatic Glass Lens, NEMA 4X Enclosure, Rigid Pendant Mounting, Die-Cast Copper-Free Aluminum Housing Material, Epoxy Powder Coated Housing Finish, 12.06 in W x 1.17 in H 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, in non-hazardous areas where severe weather conditions, excessive moisture, dirt, dust and corrosive atmospheres are a problem, pulp and paper mills, processing plants, chemical plants, oil refineries, foundries, manufacturing plants and storage areas


cCSAus Certified | C22.2 #250/137 | NEC/CEC Class I Division 2 Group A B C D/Class II Division 1 and 2 Group E F G | UL 1598/844/1598A


  • Instant start and restrike
  • High lumen output and efficacy (up to 73 lumens/W)
  • Fixtures operate safely in a 104 deg F ambient
  • Good lumen maintenance provides less than 30% depreciation after 60 K hr of operation
  • Virtually maintenance free
  • Ultra long 100000 hr of life keeps maintenance costs to a minimum
  • Starts in temperatures as low as -40 deg F/-40 deg C
  • 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
  • Reflector choice includes standard dome and 30 deg angle types, both made of fiberglass reinforced white polyester, 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 cast aluminum with baked epoxy finish, electrostatically applied for uniformity, all exposed hardware is stainless steel
  • Hinge has high lip for added safety during installation and servicing
  • Hinge and bolt construction assures 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
  • For electrical protection, a ground wire is provided on each Mercmaster™ to bond hood and ballast housing
  • Fixture bodies have stainless steel threaded inserts to receive stainless steel screws for reflector and guard
  • Prevents "freezing", allowing guards and reflectors to be easily removed and replaced at any time, without damage to the housing


(1) 3/4 in NPT Hub


Average Life:10000 hr
Country of Origin:MX
Dimensions:12.06 in W x 1.17 in H
Enclosure Type:NEMA 4X
Housing Finish:Epoxy Powder Coated
Housing Material:Die-Cast Copper-Free Aluminum
Lamp Type:HID
Lamp Wattage:85 W
Lens Type:Prismatic Glass
Mounting Type:Rigid Pendant
Series:ML Series
Voltage Rating:277 VAC