Cut Sheet

Class I, Division 2, Groups A, B, C, D
Class I, Zone 2, AEx nA nR IIC (Z2)
Class I, Zone 2, Ex nR IIC (Z) V
Class II, Division 1 and 2, Groups E, F, G
Class III
Simultaneous Exposure (Class I, Division 2/
Class II, Division 1)
Fixtures Outside Type (Salt Water)
Type 4X
IP66
Mercmaster
™
III Low Profile Compact Fluorescent Luminaires
Enclosed and Gasketed. For Hazardous and Wet Locations
Compact Fluorescent listed for simultaneous exposure to combustible dusts and flammable gases or vapors.
V CSA Certification Only.
Lighting
Lighting: EncLosEd and gaskEtEd — arEa — FLuorEscEnt
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© January 2011
1056
Illustrated Features
Ballast Assembly
Utilizingnon-sparkingcomponents
avoidingtheignitionofgasesorvapors
thatmaybepresent(nA).
Hood/Ballast Gasket
Siliconerubbergasketsealsoutmoisture,
dirtanddust.Staysflexible,withstands
hightemperatures.Closuredesign
assuresuniformgasketcompression.
Electrical Protection
Groundwireprovidedtobondmounting
hoodtoballasthousing.
Vented Reflectors
Reflectorsarethick,toughfiberglass-
reinforcedwhitepolyester,ventedfor
cooleroperation.Quicklyattachwith
furnishedstainlesssteelscrews.
Globe Chamber
Completelysealedfromtheballast
housingandoutsidevapors/air(nAnR).
Epoxy Finish
Ballasthousing,hoodsandguardsare
copperfreealuminumwithepoxypowder
coatfinish.
Photocell
Installsthroughknock-outinmounting
hoodsexceptconeandceilingmount.
Providescontinuouson-offdusk-to-
dawncontrol.Notforuseinhazardous
(classified)areas.Hazardouslocation
ratedphotocellsalsoavailable.See
Accessoriespage.
Terminal Blocks (Zone 2)
Aseven-pointterminalblockisprovided
tofacilitatewiring.Terminalblock
accommodateswiresizerangingfrom#8
to#24AWG.
Stainless Steel Inserts
Ballastbodieshavestainlesssteel
threadedinsertstoreceivestainlesssteel
screwsforreflectorsandguard.Prevents
"freezing”,allowingguardsandreflectors
tobeeasilyremovedandreplacedatany
time,withoutdamagetothehousing.
Cooler Operating Cone Hood
Largerslopedsurfaceshedsdusts,dirt
andcombustiblefibersprovidingbetter
heatdissipation.
Prismatic Glass Globes and Refractors
Heat-resistantglobesandglassrefractors
andpolymericrefractorsthreaddirectly
intoballasthousingandsealagainsta
hightemperaturesiliconerubbergasket.
(Polymericrefractorsarenotlistedfor
Zone2areas.)
Fuses
Twoscrewssecurefusekittomounting
bossinanyMercmastermountinghood.
Fuseincluded.
Stainless Steel Latch Assembly
Captive,stainlesssteellatchassembly
boltandnutclosessecurely,resistsattack
ofcorrosiveatmospheres.Swing-away
designsimplifiesservicing.
"Safety" High
Hinge
Extra-highhinge
providesadditional
protectionagainst
accidental
ballasthousing
disengagement
duringinstallation
ormaintenance.