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 
LED/ArEA: NEC/CEC, ATEX/IECEx ENCLosED AND GAskETED
Visit our website at www.emerson.com or contact us at [phone].
© March 2018
1
Applications
• Enclosedandgasketedxturessuitableforusein:
—Awiderangeofharshindustrialenvironments
—Marineandwetlocations
—Areasoflowclearance,lowceilingheightsorwherexture
weightsmustbeminimized
—Areaswheredust,water,dirtandroughusageareaproblem
• Typicalindustriesinclude:
—Pulpandpapermills
—Processingplants
—Storagefacilities
—Manufacturingplants
—Foundries
—Wastetreatment
—Warehouses
—Receivingareas
• Typicalapplicationsinclude:
—Walkways/catwalks
—Stairwells
—Tunnels
—Piperacks
—Processingareas
Features
• Compactlightweightlowproledesignissuitedforlow
mountingheights.
• Choiceofcolortemperature(CCT):5000Kcoolwhite,4000K
neutralwhiteor3000Kwarmwhite.
• Sixstandardmountinghooddesignsallowformountingin
anylocation.UsessamemountinghoodsasMercmaster™III,
Mercmaster™PremiumLEDandMercmaster™Generation3.
• Customizetotheapplicationrequirementswithfour
differenteldreplaceableglobeoptions:clearanddiffused
polycarbonate,clearglass,orprismaticglassrefractor.
• RetrotadaptersforCrouseHinds
™
hoodavailable.See
Mercmaster™CHAdapters.
• RetrotadaptersforMercmaster™IIhoodsavailable.See
Mercmaster™IIAdapters.
• ThreelightoutputlevelsforretrotofHIDxturesupto175W.
• Hingehashighlipforaddedsafetyduringinstallation
andservicing.Hingeandboltconstructionassures360°
compressionatallpointsonxturehousinggasketforpositive
sealing.Swingawaydesignofcaptiveboltandnutsimplies
servicing.
• Standard6kVsurgeprotection.
• AmbientTemperature:BU:-40°Cto+65°C(-40°Fto+149°F)
BH:-40°Cupto+65°C(-40°Fupto+149°F)
• Standardscrew-typeterminalblockcanacceptUL/CSA26-10
AWGwire.
• Heavyduty,hightemperaturesiliconerubbergaskets.
• StandardNPTthreads.
• Lampliferatedat109,000Hourswithacalculatedxturelifeof
200,000hours@+25°C(+77°C).
• FieldreplaceableglobesandLEDdriver.
• Ruggedhousingwithsuperiorthermaldesigntranslatestolong
luminairelife.
Options
• Glassglobeandglassrefractorguardavailable,seeGlobes and
GasketsunderReplacement Parts.
• AllMercmaster™luminaireshaveprovisionforfusing;add
sufx–F attheendofthecatalognumber.
• Photocontrolsareavailablewithallexceptceilingandpendant
conemountinghoods.Addsufx–1for120V,–2for208V,–3
for240V,–4for277V.
Standard Materials
• Mountinghoodsandbodies:castcopperfree(4/10of1%max.)
aluminum
• Allhardwareandcatchassemblies:stainlesssteel
• Globe:polycarbonateorglass
• Refractor:heat-resistantprismaticglass
• Glassglobeguard:stainlesssteelwire
• Glassrefractorguard:diecastaluminum
• Reector:berglassreinforcedwhitepolyester
Standard Finishes
• Mountinghoods,bodiesandglassrefractorguard:grayepoxy
powdercoatnish,electrostaticallyappliedforcomplete
uniformprotection
NEC/CEC Certifications and Compliances
• ULStandard:UL1598,ThirdEdition;UL8750,SecondEdition;
• CSAStandard:No.250.0-.08;C22.2No.250.13-14
• ANSI/IECStandard:60529
• cCSAusListed:164460
Related Products
• MercmasterLEDMountingAdapters
• MercmasterGeneration3Luminaires
• IndustrialMercmasterLEDLowProleLuminaires
DesignLights
™
Consortium
• CheckDLCQPLforcurrentlistofproducts.
Nominal Lumens 
HID Equivalent Model Number
3300 70-100W IMLLED2CG5BU
4400 100-150W IMLLED3CG5BU
5500 150-175W IMLLED4CG5BU
 Nominal Lumen value for 5000K CCT, clear glass globe. Detailed lumen information is provided in tables.
 Factory installed. (For retrofit applications, fusing must be removed from the mounting hood and ordered in the luminaire).
 Available for 120-277 Vac models only. Mounting hoods with photocontrols are not rated IP66, Type 4X or Marine Outside Type (Salt Water), but are suitable
for wet locations.
 Use of fuse voids Marine Outside Type (Salt Water) rating.