Guide to Hazardous Locations - prelectronics.com

1 IECEx DEK XDEKRA 11 ATEX 0244 XATEX / IECFM / type Temperature classPermissible surface temperatureGasIgnition temperatureAmmonia630oCMethane595oCHydro gen560oCPropane470oCEthylene425oCButane3 65oCAcetylene305oCCyclohexane259oCDiethy l ether170oCCarbon disulfide95oCConditions in potentially explosive areasConditions in Ex areasEx identification acc. to standard (example)IP protection codes (IEC 60529)First numeral Protection against solidsSecond numeral Protection against water0No protection0No protection1 Greater than 50 mm1 Vertical dripping2 Greater than mm2 Angled dripping (15 )3 Greater than water4 Greater than 1 mm4 Splashing water5 Dust protected5 Water jets6 Dust tight6 Powerful water jets7 Immersion up to 1 m8 Immersion beyond 1 mNEMA types (NEMA 250)TypeApplicationProtection againstEquivalent guideline IP rating1 IndoorGeneral purpose102 IndoorDripping water, falling dust113, 3R, 3 SOutdoorRain, snow, windblown dust544, 4 XIndoor / outdoorHose-directed water, corrosion (X)

2 55, 565 IndoorAngled dripping water, settling dust526 Indoor / outdoorTemporary submersion676 PIndoor / outdoorProlonged submersion677 IndoorHazardous Location Class I8 Indoor / outdoorHazardous Location Class I9 IndoorHazardous Location Class II12, 12 KIndoorDripping non-corrosive liquid, dust52 13 IndoorWater, oil, dust, seepage54 Environmental protection code / classExplosive atmosphereBehavior of flammable substances in the Ex areaCategorization of the poten-tially explosive areasRequired labeling of the used items in accordance with CENELECEPLE quipment groupEquipment categoryEquipment protection level Coal mine atmosphereParts at coal mines endangered by firedamp and/or combustible dustIM1 MaIM2 MbAtmosphere from Gas/Fog/LiquidContinuous, long periods, frequentZone 0II1G, (1)GGaOccasionalZone 1II2G, (2)GGbNormally not, only for a short periodZone 2II3G, (3)GGcDust atmosphereContinuous, long periods, frequentZone 20II1D, (1)DDaOccasionalZone 21II2D, (2)DDbNormally not, only for a short periodZone 22II3D, (3)

3 DDcTypicalgas / dustIdentificationMethaneIPropaneII A EthyleneII BHydrogenII CCombustible flyingsIII ANon-conducting dustIII BConducting dustIII CConditions in potentially explosive areas ATEX 94/9/ECGas and dust groupsTypes of protection for electrical devices in potentially gas explosive areasProtection principleCENELEC/IECZoneFMULC lass, Zone, immersionExclusion of the Ex atmosphereEN 60079-6 IEC 60079-61 or 2FM 3600 / ISA 60079-6 CIass I, Zone 1 Transformers, relays, startup controls, switching devicesqPowder fillingPrevent ignition of the Ex atmosphereEN 60079-5 IEC 60079-51 or 2FM 3600 / ISA 60079-5 Class I, Zone 1 Transformers, relays, capacitorsma, mb, mcEncapsulationExclusion of the Ex atmosphereEN 60079-18 IEC 60079-180, 1 or 2FM 3600 / ISA 60079-18 Class I, Zone 1 Coils from relays and motors, electronics, solenoid valves, connection systemspx, py, pzPressurized enclosuresExclusion of the Ex atmosphereEN 60079-2 IEC 60079-21 or 2FM 3620UL 60079-2 Class I, Zone 1 Control and switch cabinets, motors, electronics, solenoid valves, connection systemsdFlameproof enclosurePropagation preventionEN 60079-1 IEC 60079-11 or 2FM 3600 / ISA 60079-1 Class I, Zone 1 Switch, command and signaling devices, controls, motors, power electronicseIncreased safetyPrevent sparksEN 60079-7 IEC 60079-71 or 2FM 3600 UL 60079-7 Class I, Zone 1 Branch and connection boxes, housings, motors, terminal blocksia, ib, ic iaD, ibD, icDIntrinsic safetyLimiting the ignition energyEN 60079-11 IEC 60079-110, 1 or 2FM 3600 / ISA 60079-11 Class I, Zone 0, 1 Measurement, control and regulation technology, sensors, actuators, instrumentationFM 3610UL 913 Class 1, Div.

4 1nANon-sparkingNo arcs, sparks or hot surfacesEN 60079-15 IEC 60079-152FM 3611 / UL 1604 Class 1, Div. 2 ISA 60079-15 Zone 2nCNon-incendiveContain the explosion, quench the flameEN 60079-15 IEC 60079-152FM 3600 / ISA 60079-15 Class I, Zone 2 Zone 2 onlynLEnergy-limitedLimit the energy of sparks and surface temperaturesEN 60079-15 IEC 60079-152FM 3600 / ISA 60079-15 Class I, Zone 2 Zone 2 onlynRRestricted breathing enclosure Keep the flammable gas outEN 60079-15 IEC 60079-152FM 3600 / ISA 60079-15 Class I, Zone 2 Zone 2 onlynPSimplified pressurized enclosuresExclusion of the Ex atmosphereEN 60079-15 IEC 60079-152FM 3600 / ISA 60079-15 Class I, Zone 2 Zone 2 onlyop is, op pr, op shOptical radiationLimit, avoid, etc. energy transmission from optical radiationEN 60079-28 IEC 60079-281 or 2 Optoelectronic devicesTypes of protection for electrical devices in potentially dust explosive areasProtection principleCENELEC/IECZoneFMULC lass, ZoneApplicationtD - new (ta, tb, tc)Protection by housingExclusion of the Ex atmosphereEN 61241-1 New EN 60079-3121 or 22FM 3616 FM 3611 ISA 61241-1CL II, Zn21, Zn22 Switch, signaling and command devices, lamps, branch and connection boxes, housingsiaD, ibD new (ia, ib, ic)Intrinsic safetyEnergy limitation of sparks and temperaturesEN 61241-11 New EN 60079-1120, 21 or 22FM 3610 ISA 61241-11CL II, Zn20, Zn21 Control, measurement and regulation technology, sensors, actuators, instrumentationpD - new (p)

5 Pressurized enclosuresExclusion of the Ex atmosphereEN 61241-4 New EN 60079-221 or 22FM 3620 ISA 61241-2CL II, Zn21 Control and switch cabinets, motorsmaD, mbDMolded encapsulationExclusion of the Ex atmosphereEN 61241-18 New EN 60079-1820, 21 or 22 ISA 61241-18CL II, Zn20, Zn21 Coils and relays of motors, electronics and connection systems[AEx ia] IICANSI/ISA 60079-0 Installation in Safe area. Transmits to or receives signal from Ex area.[ ] AssociatedequipmentAEx ia IIC T6 ANSI/ISA 60079-0 Installation in Ex of the potentially explosive areasTemporary behavior of flammable substances in the Ex areaFlammable substancesZone 0 Continuous, long periods, frequentGasFogLiquidZone 1 OccasionalZone 2 Normally not, only for a short periodZone 20 Continuous, long periods, frequentDustZone 21 OccasionalZone 22 Normally not, only for a short periodEx identification acc. to standard (example)[Ex ia Ga] IICNew EN / IEC 60079-0 Installation in Safe area. Transmits to or receives signal from Ex area.

6 [ ] Associatedequipment[Ex ia] IICEN / IEC 60079-0Ex ia IIC T6 GaNew EN / IEC 60079-0 Installation in Ex ia IIC T6EN / IEC 60079-0 Year ofcertificationATEX-certified Ex equipment - guidelines of the European CommunityEC type-examination certificateIDConditionsXSuffix denotes special condition of use contained in the denotes Ex component approval. The equipment is not suitable for installation without further conditionsUse in the defined Ex categoryInstallation in Safe area. Transmits to or receives signal from Ex area.(1)G categoryIECEx-certified Ex equipmentCertificatenumberID bodyCountry0539UL International Demko A/SULDK0102 PTBPTBDE0044T V Nord TUNDE0080 INERISINEFR0344 DEKRA CERTIFICATIONS (1820)System 9000 9106B - AI HART transparent 9107B - AO HART transparent 9113B - AI temperature converter 9116B - AI universal w/ limit switch 9202B - DI pulse isolator 9203B - DO solenoid/alarm driver5531B 4-digit LCD Ex loop-powered displaySystem 5300 5331D - Universal temperature isolated 5333D - RTD - Pt100 / Lin.

7 R 5343B - Level - Lin. R / Potentiometer 5334B - TC isolated 5335D - Universal temperature HART 5 5337D - Universal temperature HART 7 5350B - Profibus PA / FF transmitter 5437D - 2-wire HART 7 temperature transmitterSystem 5000 5104B - AI repeater / power supply 5105B - AO isolated driver 5106B - AI HART transparent 5107B - AO HART transparent 5114B - AI universal converter 5115B - AI universal calculator 5116B - AI universal w/ limit switch 5131B - AI universal converter LP 5202B - DI NAMUR/contact input 5203B - DO solenoid/alarm driver 5223B - DI frequency converterTypical gas / dustIdentification NEC 505 Identification NEC 500 MethanelMiningPropanell AClass 1 / GP DEthylenell BClass 1 / GP CHydrogenll B + H2 Class 1 / GP BAcetylenell CClass 1 / GP AFibers and flyingslll AClass lllNon-conductive dustslll BClass ll / GP GCarbonaceous dustslll BClass ll / GP FMetal dustslll CClass ll / GP EGas and dust groupsM1 Continuous operation in explosive

8 Operation in explosive division (NEC500)Flammable substancesClassDivisionGroupEqv. ZoneTemporary behavior of the flammable substance in the Ex areaGasFogLiquidClass I1A, B, C, D0 or 1 Continuous, long periods, frequentOccasional2A, B, C, D2 Normally not, only for short periodsDustClass II1E, F, G20 or 21 Continuous, long periods, frequentOccasional2F, G22 Normally not, only for short periodsFibersClass III120 or 21 ConstantOccasional222 Normally not, only for short periodsClass zone, (NEC505, NEC506)ATEX certificate numberClass I Division 1 Group A,B,C,D T6 0344 II (1) G [Ex ia Ga] IIC T6 Equipment markingIECEx certificate numberGuide to Hazardous LocationsXXXS ystem 7900 7908 - 8 module backplane 7916 - 16 module backplaneClass I Zone 0 AEx ia IIC T6 System 7500 7501 - Field mounted HART temperature transmitter CT1=450T2=300T2A=280T2B=260T2C=230T3A=18 0T3B=165T3C=160T4C=120T2D=215T3=200T4=13 5T5=100T6=85T1=450T2=300T3=200T4=135T5=1 00T6=85