Guide to Equipment Certification Requirements - …

1 Hazardous Locations & Explosive Atmospheres Guide to Equipment Certification Requirements NORTH AMERICA ATEX & IECEx Typical North American Marking Standards by Product Types Typical ATEX and IECEx Marking Standard(s). II 2 G Ex d IIC T4 Gb Division Scheme Zone Scheme Product Category Class & Division Luminaires UL 844 Luminaires for use in Class I, Divisions 1 & 2 0359. Class I Division 1 Groups A&B T4 Class I Zone 0 AEx ia IIC T4 Ga Hazardous (Classified) Locations Class II, Divisions 1 & 2. Class I, Zones 1 & 2. Class II, Zones 20, 21, 22. Area Protection Temperature Class III Complies Explosion Hazard Area Gas Temperature Classification Class with Specific Equipment Protection Hazard Concept Type of Gas Group Temperature Equipment Class Classification Group Class Code European Marking for Category*. Class Equipment CSA No.

2 137 Electric Class I, Divisions 1 & 2 Protection Class (T1-T6) Protection Approved to Directive* Explosion Protection luminaires for use in hazardous Class II, Divisions 1 & 2 Protection* Level US Standards Gas Group Level Equipment Environment* (EPL). locations Notified Body Group*. Number* *ATEX only Motors and UL 674 Electric motors and Class I, Division 1, Groups B,C,D. Generators generators for use in hazardous Class I, Zone 1, Groups IIA, IIB, IIB+H2. (Explosion-proof & (classified) locations 3 Class II, Division 1, Groups E,F,G. Protection Concepts [NEC & CEC ].. Dust-ignition proof) Class II, Zones 20, 21 Protection Concepts [ATEX and IECEx]. CSA No. 145 Electric motors Type of Basic Concept and generators for use in hazardous Typical Typical Basic Concept of Code (EPL) Country Class Division/Zone Standard Type of Protection Symbol IEC Standard Protection of Protection (classified) locations 3 IEC EPL Zone(s) Protection Electrical Equipment for Flammable Gas, Vapors and Mist - Class I Electrical Equipment for Gases, Vapors and Mists (G).

3 Industrial UL 698A Industrial control panels Associated apparatus for the following _ Control Panels relating to hazardous (classified) hazardous (classified) locations: General Requirements - - 0,1,2 IEC 60079-0. US Class I Division 1 & 2 FM 3600. General locations Class I, Division 1. AEx US Class I Division 1 & 2 ISA 60079-0 Op pr Gb 1,2 IEC 60079-28. Requirements Class I, Zone 0 and Zone 1 Inherently safe Ex CA Class I Division 1 & 2 CSA No. 60079-0 Class II, Division 1 Optical Radiation Op sh Ga 0,1,2 IEC 60079-28. protected by shutdown Class III, Division 1 Op is Ga 0,1,2 IEC 60079-28. Increased AEx e (Gb) US Class I Zone 1 ISA 60079-7 Class II, Zone 20 and Zone 21. No arcs, sparks or hot Safety Ex e (Gb) CA Class I Zone 1 CSA No. 60079-7 Increased Safety e Gb 1,2 IEC 60079-7. CSA No. 14 Industrial control Control panels located in ordinary surfaces Type n' (Non-Sparking) nA Gc 2 IEC 60079-15.

4 NI US Class I Division 2 ISA 3611 No arcs, sparks Equipment Section locations with intrinsically safe barriers: Enclosure IP54 or better Non-Incendive Class I, Division 1. NI CA Class I Division 2 CSA No. 213 or hot surfaces Class I, Zone 0 and Zone 1 Flame-proof d Gb 1,2 IEC 60079-1 Contain the explosion, AEx nA (Gc) US Class I Zone 2 ISA 60079-15 Class II, Division 1 quench the flame Non-Sparking Type n' (Enclosed Break) nC Gc 2 IEC 60079-15. Ex nA (Gc) CA Class I Zone 2 CSA No. 60079-15. Flashlights UL 783 Electric flashlights and Class I, Divisions 1 & 2 Quartz/Sand Filled q Gb 1,2 IEC 60079-5 Quench the flame XP US Class I Division 1 UL 1203 Class II, Divisions 1 & 2. Explosion-proof lanterns for use in hazardous ia Ga 0,1,2 IEC 60079-11. XP CA Class I Division 1 CSA No. 30 Class I, Zones 1 & 2 Limit the energy of (classified) locations.

5 Intrinsic Safety ib Gb 1,2 IEC 60079-11 sparks and surface AEx d (Gb) US Class I Zone 1 ISA 60079-1 Contain the temperatures Flame-proof Heaters UL 823 Electric heaters for use in Class I, Divisions 1 & 2 ic Gc 2 IEC 60079-11. Ex d (Gb) CA Class I Zone 1 CSA No. 60079-1 explosion and Class II, Divisions 1 & 2. hazardous (classified) locations px Gb 1,2 IEC 60079-2. AEx q (Gb) US Class I Zone 1 ISA 60079-5 extinguish the Class III, Divisions 1 & 2 Purged /. Powder Filled flame Class I, Zone 1 Pressurized py Gb 1,2 IEC 60079-2. Ex q (Gb) CA Class I Zone 1 CSA No. 60079-5. Class II, Zones 20, 21, and 22 pz Gc 2 IEC 60079-2. AEx nC (Gc) US Class I Zone 2 ISA 60079-15. Enclosed Break Fuel Dispensing UL 87 Power-operated dispensing Type n' (Sealing & Hermetically nC Gc 2 IEC 60079-15. Ex nC (Gc) CA Class I Zone 2 CSA No.)

6 60079-15 devices for petroleum products Sealed). Equipment Keep the IS US Class I Division 1 UL 913 / FM 3610 UL 87A Dispensers for gasoline and Type n' (Restricted Breathing) nR Gc 2 IEC 60079-15 flammable gas out IS CA Class I Division 1 CSA No. 157 ethonol blends, E0 to E85 ma Ga 0,1,2 IEC 60079-18. AEx ia (Ga) US Class I Zone 0 ISA 60079-11 Limit energy of Encapsulation mb Gb 1,2 IEC 60079-18. UL 87B Dispensers for diesel fuel, bio Intrinsic Safety 1 AEx ib (Gb) US Class I Zone 1 ISA 60079-11 sparks and diesel blends to B20, kerosene and mc Gc 2 IEC 60079-18. AEx ic (Gc) US Class I Zone 2 ISA 60079-11 surface fuel oil Areas classified for fuel dispensing Oil Immersion o Gb 1,2 IEC 60079-6. Ex ia (Ga) CA Class I Zone 0 CSA No. 60079-11 temperature UL 87C Dispensers for diesel exhaust Equipment per national and local codes Ex ib (Gb) CA Class I Zone 1 CSA No.

7 60079-11 fluids Electrical Equipment for Combustible Dusts (D). Limited Energy Ex nL (Gc) CA Class I Zone 2 CSA No. 60079-15 General Requirements - - 20,21,22 IEC 60079-0. UL 1238 Control Equipment for use Type X US Class I Division 1 NFPA 496 (FM 3620) with flammable liquid dispensing ta Da 20 Standard protection Type X CA Class I Division 1 NFPA 496 devices . Enclosure tb Db 21 IEC 60079-31 for dusts, rugged tight Type Y US Class I Division 1 NFPA 496 (FM 3620) CSA No. 22 Electrical tc Dc 22 enclosure Type Y CA Class I Division 1 NFPA 496 Equipment for flammable and combustible fuel dispensers Similar to enclosure, but Type Z US Class I Division 2 NFPA 496 (FM 3620) ia Da 20. with some relaxations Type Z CA Class I Division 2 NFPA 496 Intrinsic Safety ib Db 21 IEC 60079-11. Pressurized Note 3: UL 674 and CSA 145 are harmonized standards.

8 If circuit inside is AEx px (Gb) US Class I Zone 1 ISA 60079-2 ic Dc 22. intrinsically safe Ex px (Gb) CA Class I Zone 1 CSA No. 60079-2. ma Da 20 Protection by AEx py (Gb) US Class I Zone 1 ISA 60079-2. Encapsulation mb Db 21 IEC 60079-18 encapsulation of Ex py (Gb). AEx pz (Gc). CA. US. Class I. Class I. Zone 1. Zone 2. CSA No. 60079-2. ISA 60079-2. Keep flammable gas NORTH AMERICA and ATEX & IECEx mc Dc 22 incendive parts Ex pz (Gc) CA Class I Zone 2 CSA No. 60079-2 out Db 21,22 Protection by Pressurized pD IEC 61241-4 pressurization of Restricted AEx nR (Gc) US Class I Zone 2 ISA 60079-15 Dc 22. Breathing Ex nR (Gc) CA Class I Zone 2 CSA No. 60079-15. Atmosphere Groups enclosure Substance Hazard Class Division Groups Zone Groups Non-Electrical Equipment AEx ma (Ga) US Class I Zone 0 ISA 60079-18. AEx mb (Gb) US Class I Zone 1 ISA 60079-18 Acetylene Group A IIC 0,1,2, Encapsulation General Requirements - - EN 13463-1 Low potential energy AEx mc (Gc) US Class I Zone 2 ISA 60079-18 20,21,22.

9 Ex m CA Class I Zone 1 CSA No. 60079-18 Hydrogen Group B IIC. Class I. Ethylene Group C IIB Relies on tight seals, AEx o (Gb) US Class I Zone 1 ISA 60079-6 Flammable Gases Oil Immersion Propane Group D IIA closely matched joints Ex o (Gb) CA Class I Zone 1 CSA No. 60079-6 Flow Restricted Enclosure fr - 2,22 EN 13463-2. and tough enclosures to Electrical Equipment for Combustible Dust - Class II & Class III Methane Group D IIA5 Flame-proof Enclosure d - 1,2,21,22 EN 13463-3. restrict the breathing of _ US Class II Division 1 & 2 FM 3600 Combustible Metal Dusts Group E 4 IIIC 6 the enclosure _ CA Class II Division 1 & 2 CSA No. 25 Combustible Carbonaceous Dusts Class II Group F IIIB6 Ignition hazards General 0,1,2, _ US Class III Division 1 & 2 FM 3600 Combustible Dusts Constructional Safety c - EN 13463-5 eliminated by good Requirements _ Combustible Dusts not in Group E or F 20,21,22.

10 Ex US Zone 20, 21, 22 ISA 60079-0 Group G IIIB 6 engineering methods (Flour, Grain, Wood, Plastics, Chemicals). Control Equipment US Class III 6 0,1,2, Dust-Ignition DIP Class II Division 1 UL 1203 Combustible Fibers and Flyings Not Applicable IIIA Control of Ignition Sources b - EN 13463-6 fitted to detect proof Fibers and Flyings 20,21,22. CA Class II Division 1 CSA No. 25 malfunctions Note 4: Group E is applicable to Class II, Division 1 only. NI US Class II Division 2 ISA / FM 3611 Note 5: Metane is a Group IIA Gas for non-mining applications. Enclosure is purged and Note 6: Groups IIIA, IIIB and IIIC have not been adopted by the Canadian Electrical Code. Dust Protected Purged / - 1,2, EN 60079-2 pressurized to prevent CA Class II Division 2 CSA No. 25 p Pressurized 21,22 EN 61241-4 ignition sources from Enclosure AEx ta (Da) US Class II Zone 20 2 ISA 60079-31 arising 2.