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Mercmaster III HID 50-250 Watt LuminairesHigh Pressure Sodium and Pulse Start Metal HalideListed for simultaneous exposure to combustible dusts and flammable gases or vapors.NEC/CEC:Class I, Division 2, Groups A, B, C, DClass I, Zone 2, AEx nA nR IIC (Z2)Class I, Zone 2, AEx/Ex nR IIC (ZB)Class II, Division 1 and 2, Groups E, F, GClass IIINEC/CEC:Simultaneous Exposure (Class I, Division 2/Class II, Division 1)Fixtures Outside Type (Salt Water)Type 4XIP66ApplicationsFeatures Modular design allows scores of fixture componentcombinations to meet installation and lighting needs. Manymost-used combinations are offered prewired and assembled,complete with lamp, packaged in a single carton and ready toinstall. Mogul lamp types and wattages:— HPS 50W-150W— PSMH 175W-250W Choice of heat-resistant prismatic glass refractors (NEMAdistributions I, III and V), or heat-resistant prismatic glass globesfor hazardous area fixtures. Colored and clear polycarbonateglobes and Tuff-skin coated glass globes are available butare NOT approved for use in classified areas. Fixtures with theseglobes do NOT comply with code requirements, and should beused in non-classified areas only. Globes and refractors threaddirectly into ballast housing. Mounting hoods include cone-shaped pendant hood, standardpendant, flexible pendant, ceiling and wall pendants (tappedfor 3/4” or 1” NPT), 25 angle stanchion, and 90 (straight)stanchion (both tapped for 1-1/4” or 1-1/2” NPT). Cone hood fixtures for pendant mounting shed dust, dirt andcombustible fibers. Cone hood inhibits build-up that “insulates”fixture and slows heat transfer, and provides increased surfacearea for more effective heat dissipation.PendantPendant ConeCeilingWall25 Stanchion90 Stanchion Reflector choice includes standard dome and 30 angle types,both made of Fiberglass reinforced white polyester. Highlyresistant to unusually corrosive applications. Reflectors arevented for cooler, dirt-free operation and maintained lumenoutput. They secure to ballast housing with stainless steelscrews threading into stainless steel inserts. For high corrosion resistance, fixture housing, mounting hoodsand guards are copperfree cast aluminum with baked epoxyfinish, electrostatically applied for uniformity. All exposedhardware is stainless steel. Hinge has high lip for added safety during installationand servicing. Hinge and bolt construction assures 360ºcompression at all points on ballast housing gasket for positivesealing. Swing-away design of captive bolt and nut simplifiesservicing. Body gaskets and globe gaskets are high-temperature siliconerubber. Capacitors are non-PCB type, thermally isolated from ballast. Mogul base porcelain socket with nickel-plated contacts has200 C (392 F) welded leads, prewired to the ballast. Assurestrouble-free operation in installations where high ambienttemperatures are encountered. HPS ballasts are High Power Factor (min. P.F. 90%). A wide range of voltages available (120 to 600 Volt) and ballasttypes (Reactor and CWA). All Mercmaster III mounting hoods have provision for easy fieldinstallation of fuses in fixtures (see fuse kit listings in this catalogsection). For electrical protection, a ground wire is provided on eachMercmaster to bond hood and ballast housing. Tuff-skin is a registered trademark of Thomas Manufacturing Corp., Parkton, Maryland.Visit our website at www.emerson.com or contact us at (800) 621-1506. May 2019209HID/AREA: NEC/CEC ENCLOSED AND GASKETED Enclosed and gasketed fixtures suitable for use in:— Marine and wet locations— A wide range of industrial, chemical processing and otherareas where flammable gases and vapors or combustibledusts are present under conditions defined by the NationalElectrical Code as Class I, Division 2; Class II, Division 1 and2; and Class III— For Zone 2, the method of protection is AEx nA nR –Restricted Breathing/Nonsparking or AEx/Ex nR – RestrictedBreathing— Non-hazardous locations where severe weather conditions,excessive moisture, dirt, dust, corrosive atmosphere orhigh ambient temperatures are encountered. 18% cooleroperation allows use in ambient temperatures up to 65 C( 149 F) depending on fixture component combinations— Ambient temperature range:– HPS: -40 C to 65 C (-40 F to 149 F)– PSHM: -30 C to 65 C (-22 F to 149 F) Typical applications include:— Pulp and paper mills— Processing plants— Chemical plants— Oil refineries— Foundries— Manufacturing plants— Storage areas— Marine applications Fixtures have NEMA 4X listing. Suitability includes listing for use where there may besimultaneous exposure to combustible dusts and flammablegases and vapors. See listing pages for compliance data onspecific fixture component combinations.
Mercmaster III HID 50-250 Watt LuminairesHigh Pressure Sodium and Pulse Start Metal HalideListed for simultaneous exposure to combustible dusts and flammable gases or vapors.NEC/CEC:Class I, Division 2, Groups A, B, C, DClass I, Zone 2, AEx nA nR IIC (Z2)Class I, Zone 2, AEx/Ex nR IIC (ZB)Class II, Division 1 and 2, Groups E, F, GClass IIINEC/CEC:Simultaneous Exposure (Class I, Division 2/Class II, Division 1)Fixtures Outside Type (Salt Water)Type 4XIP66OptionsHID/AREA: NEC/CEC ENCLOSED AND GASKETEDPendant Mount Fixturewith Prismatic Glass RefractorPendant Cone Fixture withPrismatic Glass Globe and GuardStraight Stanchion-Mount Fixturewith Prismatic Glass Refractor andGuardCeiling Mount Fixturewith Prismatic Glass Globe, Guardand Polyester 30 Angle Reflector The AEx nA nR factory sealed Mercmaster III prevents vaporsand gases from entering the globe chamber. There are noseals or putty required which will reduce installation time andinstallation errors. The AEx/Ex nR Mercmaster III fixture requires all wiring entriesto be sealed. AEx nA nR fixtures are available with a Class I, Zone 2 rating.Add suffix -Z2. Only available for certain ballast types. AEx/Ex nR fixtures are available with a Class I, Zone 2 rating.Add suffix -ZB. Fuses can be field-installed on Mercmaster III fixtures. Kitsinclude fuse block, wire connectors and screws for attaching tomounting hood. Fixtures with fuses do not comply with MarineType Electric Fixtures Outside Type (Salt Water) requirementsfor marine listing. For fuse kits, see Electrical Specifications andFuse Kits page. Hot Restrike will restrike HPS lamp immediately when power isrestored after a momentary power interruption. Add suffix -R. Smart Starter incorporates a 1-1/2-minute timer and performsas a conventional starter to normally start lamp. Removesitself from circuit if lamp burns out or is removed from socket.Eliminates starter failures caused by prolonged operation withcycling or failing lamps and simplifies finding their location,reducing maintenance and repair costs. Available for all HPSand PSMH fixtures. Add suffix -S. Optional photocell for all fixtures except cone and ceiling mountprovides automatic “on-off” control. Quartz Auxiliary comes to full brightness immediately andremains lit until the HID lamp attains 25-50% of full illumination.Quartz Auxiliary supplied with relay switch and socket to accept120 V quartz double contact bayonet base lamp (not included).Add suffix -E to fixture catalog number. NEC/CEC Certifications and Compliances cULus Listed: E10444 UL Standard: ANSI/UL 844, 1598, 60079-0, 60079-15, 1598A CSA Standard: CSA C22.2 No. 250.0, C22.2 No. 137; CAN/CSAE60079-0, E60079-15 PSMH 250W MT (120/208/240/277, 60 Hz) Fixtures are not ULListedRelated Products Classified area photo controls are also available.Standard Materials Mounting hoods, ballast bodies and guards: copperfree castaluminum (less than 4/10 of 1%) Exposed hardware: stainless steel; latch assemblies havestainless steel bolt and captive nut; reflectors and guards attachwith stainless steel screws threading into stainless steel inserts. Reflectors: Fiberglass reinforced white polyester Globes: heat-resistant prismatic glass Refractors: heat-resistant prismatic glassStandard Finishes Mounting hoods, ballast bodies, guards: epoxy powder coatfinish, electrostatically applied for complete, uniform surfaceprotection Reflectors: white polyester finish Fixtures equipped with a quartz auxiliary lamp do not comply with UL requirements and are not suitable for use in classified locations.210Visit our website at www.emerson.com or contact us at (800) 621-1506. May 2019
Mercmaster III HID 50-250 Watt LuminairesHigh Pressure Sodium and Pulse Start Metal HalideListed for simultaneous exposure to combustible dusts and flammable gases or vapors.NEC/CEC:Class I, Division 2, Groups A, B, C, DClass I, Zone 2, AEx nA nR IIC (Z2)Class I, Zone 2, AEx/Ex nR IIC (ZB)Class II, Division 1 and 2, Groups E, F, GClass IIINEC/CEC:Simultaneous Exposure (Class I, Division 2/Class II, Division 1)Fixtures Outside Type (Salt Water)Type 4XIP66Illustrated FeaturesVented ReflectorsReflectors are thick, tough fiberglassreinforced white polyester, vented forcooler operation. Quickly attach withfurnished stainless steel screws.High Temperature SocketsMogul base high-temperature porcelainsockets.Aluminum Inner ReflectorSolid aluminum inner reflector (forrefractor ballast housings only) improvesphotometric efficiency."Safety" HighHingeExtra-high hingeprovides additionalprotection againstaccidentalballast housingdisengagementduring installationor maintenance.Stainless SteelLatch AssemblyCaptive, stainlesssteel latch assemblybolt and nut closessecurely, resistsattack of corrosiveatmospheres.Swing-away designsimplifies servicing.Stainless Steel InsertsBallast bodies have stainless steelthreaded inserts to receive stainless steelscrews for reflectors and guard. Prevents"freezing”, allowing guards and reflectorsto be easily removed and replaced at anytime, without damage to the housing.Mounting Hood and Globe GasketsSilicone rubber gasket seals out moisture,dirt and dust. Stays flexible, withstandshigh temperatures. Closure designassures uniform gasket compression.Electrical ProtectionGround wire provided to bond mountinghood to ballast housing.Epoxy FinishBallast housing, hoods and guards arecopperfree aluminum with epoxy powdercoat finish.PhotocellAvailable for all fixtures except cone andceiling mount. Installs through knock-outin mounting hood. Provides continuousON-OFF dusk-to-dawn control.Heat-Resistant Globes and RefractorsPrismatic glass globes and refractors areheat-resistant. They thread directly into theballast housing and seal against a hightemperature silicone rubber gasket.Cooler Operating Cone HoodLarger sloped surface sheds dusts, dirtand combustible fibers providing betterheat dissipation.FusesTwo screws secure fuse kit to mountingboss in any Mercmaster mounting hood.Fuse included.Visit our website at www.emerson.com or contact us at (800) 621-1506. May 2019211HID/AREA: NEC/CEC ENCLOSED AND GASKETEDGlobe Chamber (Zone 2)Completely sealed from the ballasthousing and outside vapors/air (nA nR).Terminal Blocks (Zone 2)A seven-point terminal block is providedto facilitate wiring. Terminal blockaccommodates wire size ranging from #8to #24 AWG.Ballast Assembly (Zone 2)Utilizing non-sparking componentsavoiding the ignition of gases or vaporsthat may be present (nA).
Mercmaster III HID 50-250 Watt LuminairesHigh Pressure Sodium and Pulse Start Metal HalideListed for simultaneous exposure to combustible dusts and flammable gases or vapors.NEC/CEC:Class I, Division 2, Groups A, B, C, DClass I, Zone 2, AEx nA nR IIC (Z2)Class I, Zone 2, AEx/Ex nR IIC (ZB)Class II, Division 1 and 2, Groups E, F, GClass IIINEC/CEC:Simultaneous Exposure (Class I, Division 2/Class II, Division 1)Fixtures Outside Type (Salt Water)Type 4XIP66Quartz Emergency Light for Pulse Start Metal Halide or High Pressure Sodium Fixtures Mercmaster fixtures for or metal halide and high pressure sodium lamps can be supplied with asocket to accept a 150 W or 250 W, 120 V quartz lamp. This D.C. bayonet base socket is in additionto the standard lamp socket. In the event of a momentary power interruption, the quartz lamp isautomatically switched on. The single ended quartz lamp remains energized until the HID restrikesand reaches about 60% output.The quartz emergency lamp socket is wired to a 120 V tap on the ballast and is thereforeindependent of the lighting fixture voltage. No special field wiring is necessary.DescriptionQuartz Emergency LightQuartz Emergency Light forPSMH or HPS FixturesCatalog SuffixFor fixture volts of 120, 208, 240 or 277-MTEFor fixture volts of 480-48EQuartz Emergency Light for Pulse Start Metal Halide orHigh Pressure Sodium FixturesAccessory Options Guards: Guards are die-cast copperfree aluminum with baked epoxy finish to match fixtures.Fixture supplied with stainless steel mounting screws which thread into stainless steel inserts onfixture housing to attach guard. To order fixture with guard, add suffix -G to catalog number beforeadding voltage suffix.HID/AREA: NEC/CEC ENCLOSED AND GASKETED Reflectors: Standard dome and 30 angle polyester reflectors are shown elsewhere in thiscatalog section. Hot Restrike: Instantly restrikes a hot HPS lamp when power is restored after a momentaryoutage. Available factory-installed only. To order, add suffix -R to catalog number. Quartz Emergency Light: When ordered, HPS fixtures will be supplied with a prewired specialDC bayonet base socket to accept a 150W, 120 V quartz lamp (not furnished) that automaticallyswitches on when a power outage occurs. Fixtures ordered with this quartz emergency lamp featuredo NOT comply with requirements for classified areas and should be used only in non-classifiedlocations. To order, add suffix -E to catalog number and specify if a relay switch is desired. Photocell and Fuses: Photocontrols are available. Smart Starter: Performs as a conventional starter in lamp start-up. Removes itself from circuit atend of lamp life or if lamp is out of socket. Add suffix -S to catalog number. NOTE: Fixtures equipped with quartz emergency light do not comply with UL requirements and are not suitable for use in classified locations.212Visit our website at www.emerson.com or contact us at (800) 621-1506. May 2019
Mercmaster III HID 50-250 Watt LuminairesHigh Pressure Sodium and Pulse Start Metal HalideListed for simultaneous exposure to combustible dusts and flammable gases or vapors.NEC/CEC:Class I, Division 2, Groups A, B, C, DClass I, Zone 2, AEx nA nR IIC (Z2)Class I, Zone 2, AEx/Ex nR IIC (ZB)Class II, Division 1 and 2, Groups E, F, GClass IIINEC/CEC:Simultaneous Exposure (Class I, Division 2/Class II, Division 1)Fixtures Outside Type (Salt Water)Type 4XIP66Mercmaster III 50-250 Family TreePendant & FlexiblePendant Mount Pendant Cone MountCeiling MountWall Mount KPA & KPAFKPCHKPCKPWB25 Stanchion Mount 90 Stanchion Mount KPSKPSTBallast Housing, Mogul Base(50 - 150 W HPS, 175- 250 W PSMH)KPB (for Glass Globe)VPGL-2HRVPGL-2HRT(Heat-Resistant Glass) (Coated Heat-Resistant Glass) VPGL-2PL(Polycarbonate) Prismatic GlassRefractorsPolymeric RefractorsG3 GlobeLPRF(Closed Prismatic) VPGL-3HR(Heat-Resistant Glass)LPG-R Three-Way Exit Sign Globe Guards (Optional Accessory)Globe Guards (Optional Accessory)CJEXRNKGU2KRG2White Polyester Reflector (Optional Accessory)KR2-ST (Standard)KR2-DD (Deep Dome) KR2-AN (30 Angle)White Polyester Reflector (Optional Accessory)CMR-4ST (Standard)CMR-4DD (Deep Dome) CMR-4AN (30 Angle) Mounting hood with a 120 V or 208-277 V factory installed photocell is available. Standard and deep dome reflectors may interfere with bottom conduit entry if used with KPST and KPWB mounting hoods. Available in clear, amber, blue, green and red. Colors not UL Listed. Available in clear, amber, green and red. Not UL Listed. Available in NEMA Type II, III, IV and V. Polymeric Refractor suitable for Class II, Groups F and G, NEMA 4X and Marine Type Electric Fixtures Outside Type (SaltWater) only (100 W HPS Max.). Available in NEMA Type I, III and V. Not UL Listed.Visit our website at www.emerson.com or contact us at (800) 621-1506. May 2019213HID/AREA: NEC/CEC ENCLOSED AND GASKETEDGlobesKPBR (for Glass Refractor and G3 Globe)
Mercmaster III HID 50-250 Watt LuminairesHigh Pressure Sodium and Pulse Start Metal HalideListed for simultaneous exposure to combustible dusts and flammable gases or vapors.NEC/CEC:Class I, Division 2, Groups A, B, C, DClass I, Zone 2, AEx nA nR IIC (Z2)Class I, Zone 2, AEx/Ex nR IIC (ZB)Class II, Division 1 and 2, Groups E, F, GClass IIINEC/CEC:Simultaneous Exposure (Class I, Division 2/Class II, Division 1)Fixtures Outside Type (Salt Water)Type 4XIP66Order using catalog numbering guide below or select catalog number from tables on following pages.Catalog Numbering GuideKPAHID/AREA: NEC/CEC ENCLOSED AND GASKETEDSeries:KP Mercmaster III250L70Lamp Type:L - High PressureSodiumP - Pulse StartMetal HalideMounting:A - Pendant (rigidmounting)C - CeilingCH - Pendant Cone HoodF - Pendant (flexiblemounting)ST - 90 StanchionS - 25 StanchionWB - SMH175XPSMH250XVoltages:MT - 120/208/240/277 V 60 Hz48 - 480 V 60 Hz125 - 120 V 50 Hz10Hub Size:75 - 3/4” NPT10 - 1” NPT125 - 1-1/4”NPTstanchion150 - 1-1/2”NPTstanchionWattage:10 - 100 W HPS15 - 150 W HPS17 - 175 W PSMH25 - 250 W PSMH 50 - 50 W HPS(MT - Voltage Only)70 - 70 W HPS48—XXXX—J5125—XXX——225 - 225 V 50 Hz226 - 220 V 60 Hz235 - 230 V 50 Hz225XXXX——GGuard Options:G - GuardBlank - NoGuardOptical Assembly:Blank - Glass GlobeJ1 - NEMA I GlassRefractorJ3 - NEMA III GlassRefractorJ5 - NEMA V GlassRefractorG3 - Large GlassGlobe226XXXX——MTVoltage Suffixes235236——XX—X—X————236 - 230 V 60 Hz245 - 240 V 50 Hz246 - 240 V 60 HzRZ2Options:E - Emergency QuartzF - Fuse Kit (SpecifyVoltage)R - Hot Restrike(50-150 W HPS only)S - Smart StarterK - Kynar CoatingH1 - Photocontrol 120 VH2 - Photocontrol 208 VH3 - Photocontrol 240 VH4 - Photocontrol 277 VC - Safety Cable AdaptedE40 - Export SocketT - Terminal BlocksOptional Fusing FN - 120 VFP - 208 VFS - 240 VFT - 277 VFF - 480 VSuffix:Voltage: Z2 - Zone 2 suffixMT - 120/208/240/277,(required for AEx60 HznA nR rating) 48 - 480, 60 HzZB - Zone 2 suffix125 - 120, 50 Hz(required for225 - 220, 50 HzAEx/EX nR rating)226 - 220, 60 Hz235 - 230, 50 Hz236 - 230, 60 Hz245 - 240, 50 Hz246 - 240, 60 HzGP - 120/220-240, 50 HzGK - 220/240, 50 HzGC - 230, 50 ————GC—X————GP - 120/220-240 V 50 HzGK - 120/220-240 V 50 HzGC - 230-240 V 50 HzReflectors are ordered separately – see Accessories page. Voltages shown are limited to specific combinations. Please contact factory for other available voltage options. Optional fusing is available for use with MT, 5MT and 48 voltage suffixes ONLY. PSMH 250 W, MT fixtures are not UL Listed. The -Z2 suffix (AEx nA nR) is available for use with MT, 48 and 246 voltage suffixes ONLY.214Visit our website at www.emerson.com or contact us at (800) 621-1506. May 2019
Mercmaster III HID 50-250 Watt LuminairesClass I, Division 2; Class II, Division 1; Simultaneous Exposure to Hazardous Conditions of Both ClassificationsTemperature Identification Numbers of Mercmaster III fixtures.NEC/CEC:Class I, Division 2, Groups A, B, C, DClass I, Zone 2, AEx nA nR IIC (Z2)Class I, Zone 2, AEx/Ex nR IIC (ZB)Class II, Division 1 and 2, Groups E, F, GClass IIINEC/CEC:Simultaneous Exposure (Class I, Division 2/Class II, Division 1)Fixtures Outside Type (Salt Water)Type 4XIP66Mercmaster III fixtures are listed for “Simultaneous Exposure” to combinations of Class I, Division 2 and Class II, Division 1 hazardousconditions.“T” Numbers for Mercmaster III FixturesAmbient Temp. C ( F)40 C (104 F)55 C (131 F)65 C (149 F)40 C (104 F)55 C (131 F)65 C (149 F)40 C (104 F)40 C (104 F)55 C (131 F)65 C (149 F)40 C (104 F)40 C (104 F)55 C (131 F)40 C (104 F)55 C (131 F)65 C (149 F)40 C (104 F)55 C (131 AT2AT2T2Class II, Division 1 Groups E, F andSimultaneous ExposureClass I, Division 2G Class I, Division2 / Class II, Division 1Globe & G38”Globe &G38”Globe & G38”Reflector Globe Refractor Globe Reflector Globe Refractor Globe Reflector Globe � T3A (EF) ——T2B (EF) T2B (EF) —————T3B—T4T4T2B—T2CT2CT2D T2D T2D——T4T4——T2BT2BT2D T2D ——T2B———T3 ——————“T” Numbers Represent the Maximum Lamp Temperature for Class I, Division 2 Locations andMaximum Surface Temperature Under Dust Blanket for Class II, Division 1 T3BT3CT4T4AT5T6Temp.Range( nge( 19358392331356322329277320250275214248187212185 All Class II T Numbers are E, F, G unless otherwise indicated. 250 Watt PSHM fixture is not UL/CSA certified, Appleton Grp, LLC self certifies this product.Visit our website at www.emerson.com or contact us at (800) 621-1506. May 2019215HID/AREA: NEC/CEC ENCLOSED AND GASKETEDSupplyWireTemp.Watts Type C ( F)90 C (194 F)50HPS90 C (194 F)90 C (194 F)90 C (194 F)70HPS90 C (194 F)90 C (194 F)90 C (194 F)90 C (194 F)100 HPS90 C (194 F)90 C (194 F)90 C (194 F)90 C (194 F)150 HPS90 C (194 F)90 C (194 F)175 PSMH 90 C (194 F)125 C (257 F)90 C (194 F)250 PSMH 90 C (194 F)Lamp
Mercmaster III HID 50-250 Watt LuminairesClass I, Zone 2, AEx nA nR IIC; Class 1 Zone 2, AEx/Ex nR IIC; IP66; and NEMA 4XTemperature Identification Numbers of Mercmaster III Fixtures.NEC/CEC:Class I, Division 2, Groups A, B, C, DClass I, Zone 2, AEx nA nR IIC (Z2)Class I, Zone 2, AEx/Ex nR IIC (ZB)Class II, Division 1 and 2, Groups E, F, GClass IIINEC/CEC:Simultaneous Exposure (Class I, Division 2/Class II, Division 1)Fixtures Outside Type (Salt Water)Type 4XIP66Operating Temperatures: “T” Numbers for nAnR Zone 2 Mercmaster III FixturesThe “T” number is established by separately determining the maximum temperature of the globe surface and ballast compartment. The hotter of the two is takento determine the “T” number for the overall fixture.LampWattsTypeSupply WireTemp. C ( F)90 C (194 F)50HPS90 C (194 F)70100HID/AREA: NEC/CEC ENCLOSED AND GASKETED150175250HPSHPSHPSPSMHPSMH Class I, Zone 2 AEx nA nR IICClass I, Zone 2 AEx/Ex nR IICAmbientTemp. C ( F)40 C (104 F)GlobeT4Globe &ReflectorT3RefractorOnlyT5GlobeT4Globe &ReflectorT3RefractorOnlyT555 C (131 F)T3T3T4T3T3T490 C (194 F)65 C (149 F)T3T3T4T3T3T490 C (194 F)40 C (104 F)T4T4T4T5T5T590 C (194 F)55 C (131 F)T4T4T3T4T4T590 C (194 F)65 C (149 F)T3T3T3T4T4T490 C (194 F)40 C (104 F)T4T4T4T4T4T590 C (194 F)55 C (131 F)T4T3T3T4T4T490 C (194 F)65 C (149 F)T3T3T3T4T3T490 C (194 F)40 C (104 F)T3T3T3T4T4T490 C (194 F)55 C (131 F)T3T3T3T4T3T4105 C (221 F)65 C (149 F)T3T3T3T3T3T490 C (194 F)40 C (104 F)T3T3T4T3T3T490 C (194 F)55 C (131 F)T3T3T3T3T3T4105 C (221 F)65 C (149 F)T3T3T3T3T3T390 C (194 F)40 C (104 F)T3T3T3T3T3T390 C (194 F)55 C (131 F)T3T3T3T3T3T3“T” Numbers Represent the Maximum Surface Temperature for Luminaires with AEx nA nR or AEx/Ex nR rating“T” NumberT1T2T3T4T5T6Temp. Range ( C)301-450201-300136-200101-13586-10085Temp. Range ( F)547-842394-572277-392214-275187-212185 250 Watt PSHM fixture is not UL/CSA certified, Appleton Grp, LLC self certifies this product.216Visit our website at www.emerson.com or contact us at (800) 621-1506. May 2019
Mercmaster III HID 50-250 Watt LuminairesClass I, Division 2; Class II, Division 1; Simultaneous Exposure to Hazardous Conditions of Both ClassificationsMaximum Temperatures in C ( F) Obtained from Tests in a 40 C (104 F) Ambient, Vertical Position, Lamp Base Up, as per NEC.NEC/CEC:Class I, Division 2, Groups A, B, C, DClass I, Zone 2, AEx nA nR IIC (Z2)Class I, Zone 2, AEx/Ex nR IIC (ZB)Class II, Division 1 and 2, Groups E, F, GClass IIINEC/CEC:Simultaneous Exposure (Class I, Division 2/Class II, Division 1)Fixtures Outside Type (Salt Water)Type 4XIP66Fixture Selection Guide Indicates atmosphere for which fixture is suitable. Denotes fixture with Globe Only. Denotes fixture with Globe and Reflector. Denotes fixture with 8” Refractor / G3 GlobeIgnition C ( F) Minimum Fixture“T” Number forChemical5070100150175250305 C (581 F)T2 acrolein (inhibited)220 C (428 F)T2D arsinebutadieneethylene oxidehydrogenpropylene oxidepropylnitrateNA 420 C (788 F)429 C (804 F)500 C (932 F)449 C (840 F)175 C (347 F)350350T1350T3B acetaldehydeallyl alcoholn-butyraldehydecarbon monoxidecrotonaldehydecyclopropanediethyl ether (ethyl ether)diethylamineethyleneethylenimine175 C (347 F)378 C (712 F)218 C (424 F)609 C (1128 F)232 C (450 F)498 C (928 F)160 C (320 F)312 C (594 F)450 C (842 F)320 C (608 F)T3B350T2DT1T2CT1T3CT2T1T2 ethly mercaptan300 C (572 F)T2 ethyl sulfidehydrogen cyanideNA 538 C (1000 F)T1 hydrogen sulfide260 C (500 F)T2B al dimethyl hydrazine310 C (590 F)428 C (802 F)321 C (610 F)249 C (480 F)T2350T2T2C 464 C (867 F)465 C (869 F)481 C (898 F)651 C (1204 F)498 C (928 F)287 C (549 F)343 C (649 F)T1T1T1T1T1T2A325 Class I, Division 2 ChemicalGroup A AtmospheresacetyleneHPS (Watts)PSMH (Watts)Group B Atmospheres Group C Atmospheresacetic acid -butanol (butyl alcohol)This classified area suitability chart is based on NEC requirements and Appleton and UL testing. However, the ultimate decision on suitability of these fixtures forclassified areas depends solely on the judgement of the owner, insurance company, inspector and/or authority having jurisdiction. Ignition temperatures shown should be regarded as approximations only. Per NFPA Bulletin 325M, ignition temperatures may vary according to such factorsas vapor/air mixture, size and space where ignition may occur, rate and duration of heating, oxygen concentration and other materials present. Not Available.Visit our website at www.emerson.com or contact us at (800) 621-1506. May 2019217HID/AREA: NEC/CEC ENCLOSED AND GASKETED Group D Atmospheres
Mercmaster III HID 50-250 Watt LuminairesClass I, Division 2; Class II, Division 1; Simultaneous Exposure to Hazardous Conditions of Both ClassificationsMaximum Temperatures in C ( F) Obtained from Tests in a 40 C (104 F) Ambient, Vertical Position, Lamp Base Up, as per NEC.NEC/CEC:Class I, Division 2, Groups A, B, C, DClass I, Zone 2, AEx nA nR IIC (Z2)Class I, Zone 2, AEx/Ex nR IIC (ZB)Class II, Division 1 and 2, Groups E, F, GClass IIINEC/CEC:Simultaneous Exposure (Class I, Division 2/Class II, Division 1)Fixtures Outside Type (Salt Water)Type 4XIP66Fixture Selection Guide Indicates atmosphere for which fixture is suitable.HID/AREA: NEC/CEC ENCLOSED AND GASKETED Denotes fixture with Globe Only. Denotes fixture with Globe and Reflector. Denotes fixture with 8” Refractor / G3 GlobeHPS (Watts)PSMH (Watts)Class I, Division 2 ChemicalGroup D Atmospheres2-butanol (secondary butyl alcohol)n-butyl acetateIgnition C ( F) Minimum Fixture“T” Number forChemical5070100150175250405 C (761 F)425 C (797 F)350350 isobutyl acetate421 C (790 F)350 sec-butyl alcoholdi-isobutyleneethaneethanol (ethyl alcohol)ethyl acetateethylene diamine (anhydrous)ethylene dichloridegasoline (56-60 octane)heptaneshexanesisopreneisopropyl ethermesityl oxidemethane (natural gas)methanol (methyl alcohol)3-methyl-l-butanol (isoamyl alcohol)methyl ethyl ketonemethyl isobutyl ketone2-methyl-1-propanol (isobutyl alcohol)2-methyl-1-propanol (tertiary butyl alcohol)petroleum naphtha pyridineoctanespentanes1-pentanol (amyl alcohol)propane1-propanol (propyl alcohol)2-propanol (isopropyl alcohol)propylenestyrenetoluenevinyl acetate343 C (649 F)391 C (736 F)472 C (882 F)363 C (685 F)426 C (799 F)385 C (725 F)413 C (775 F)280 C (536 F)204 C (399 F)223 C (433 F)395 C (743 F)443 C (829 F)344 C (651 F)537 C (999 F)385 C (725 F)350 C (662 F)404 C (759 F)448 C (838 F)415 C (779 F)478 C (892 F)288 C (550 F)482 C (900 F)206 C (403 F)260 C (500 F)300 C (572 F)432 C (810 F)412 C (774 F)399 C (750 F)455 C (851 F)490 C (914 F)480 C (896 F)402 C (756 350350T1T2AT1T3T2BT2350350350T1T1T1350 vinyl chloride472 C (882 F)T1 xylenes (o-xylene)463 C (865 F)T1 This classified area suitability chart is based on NEC requirements and Appleton and UL testing. However, the ultimate decision on suitability of these fixtures forclassi
automatically switched on. The single ended quartz lamp remains energized until the HID restrikes and reaches about 60% output. The quartz emergency lamp socket is wired to a 120 V tap on the ballast and is therefore independent of the lighting fixture voltage. No special field wiring
