Cut Sheet

Industrial Mercmaster
LED Low Profile Luminaires
For Ordinary Locations
NEC/CEC:
cCSAus Listed
Type 3R, 4, 4X
IP66/IP67
NEC/CEC:
Simultaneous Exposure
Suitable for Use in Wet Locations
Marine Outside Type (Salt Water)
For USA ONLY 
Illustrated Features
Heatsink
Reliableheattransferviathecast,epoxy
powdercoataluminumbody.Provides
maximumheatdissipationfromtheLED
assemblytotheoutsideenvironment.
Driver Assembly
Utilizingnon-sparkingcomponents
avoidingtheignitionofgasesorvapors
thatmaybepresent.
Cooler Operating Cone Hood
Largerslopedsurfaceshedsdusts,dirt
andcombustiblefibersprovidingbetter
heatdissipation.
Fuses (optional)
Fusesfactory
installedinluminaire
housing.Use of
fuse voids Marine
Outside Type (salt
water) rating.
Photocell (optional)
FactoryInstalledintheMountingHood.
Availableforallfixturesexceptcone
andceilingmount.Providescontinuous
ON-OFFdusk-to-dawncontrol.Note:
Fixtures with PCD2 photocontrols are
not rated IP66, Type 4X, Marine Outside
Type (Salt Water), but are suitable for wet
locations.
Terminal Blocks
Aseven-pointterminalblockisprovided
tofacilitatewiring.Terminalblock
accommodateswiresizerangingfrom
26-10AWG.
Mounting Hood and Globe Gaskets
Siliconerubbergasketssealoutmoisture,
dirtanddust.Staysflexible,withstands
extremetemperatures.Closuredesign
assuresuniformgasketcompression.
Epoxy Finish
Fixturehousing,hoodsandguardsare
copperfreealuminumwithtripleprotection
epoxypowdercoatfinish.
Stainless Steel
Latch Assembly
Captive,stainless
steellatch
assemblybolt
andnutcloses
securely,resists
attackofcorrosive
atmospheres.
Swing-awaydesign
simplifiesservicing.
Prismatic
Refractors
Heat-resistant
refractorthreads
directlyintofixture
housingandseal
againstahigh-
temperaturesilicone
rubbergasket.
Electrical Protection
Groundwireprovidedtobondmounting
hoodtofixturehousing.External
Groundingprovisionforadditionalsafety.
Reflectors and
Visors
Reflectorsarethick,
toughfiberglass
reinforcedwhite
polyester.Visor
isaluminumwith
electrostatically
applied,grayepoxy
powdercoatfinish.
Quicklyattach
eitheraccessory
toluminairewith
furnishedstainless
steelscrews.
“Safety” High
Hinge
Extra-highhinge
providesadditional
protectionagainst
accidental
fixturehousing
disengagement
duringinstallation
ormaintenance.
“Safety” Cable
Safetycableoption
threadsthroughthe
fixturehousingfor
additionalsafety.
Factory Installed. Fusing only permitted for cCSAus rating.
Available for 120-277 Vac models only.
Use of fuse voids Marine Outside Type (Salt Water) rating.
LED/ArEA: NEC/CEC, ATEX/IECEx ENCLosED AND GAskETED
Visit our website at www.emerson.com or contact us at (800) 621-1506.
© March 2018
2