1
HZL 0314 ATEX & IECEx NORTH AMERICA Contact Intertek with questions about Hazardous Locations & Explosive Atmospheres testing and certification [email protected] 1-800-WORLDLAB (967-5352) www.intertek.com/hazardous-locations Hazardous Locations & Explosive Atmospheres Guide to Equipment Certification Requirements Typical North American Marking e m e h c S e n o Z e m e h c S n o i s i v i D Class I Zone 0 AEx ia IIC T4 Ga Hazard Class Protection Concept Code Area Classification Approved to US Standards Class I Division 1 Groups A&B T4 Temperature Class Gas Group Hazard Class Area Classification Temperature Class Gas Group Equipment Protection Level NORTH AMERICA and ATEX & IECEx ® ® _ Protection Concepts [NEC & CEC ] Electrical Equipment for Flammable Gas, Vapors and Mist - Class I General Requirements AEx Ex US US CA Class I Class I Class I Division 1 & 2 Division 1 & 2 Division 1 & 2 FM 3600 ISA 60079-0 CSA C22.2 No. 60079-0 Increased Safety AEx e (Gb) Ex e (Gb) US CA Class I Class I Zone 1 Zone 1 ISA 60079-7 CSA C22.2 No. 60079-7 No arcs, sparks or hot surfaces Non-Incendive NI NI US CA Class I Class I Division 2 Division 2 ISA 12.12.01/FM 3611 CSA C22.2 No. 213 Non-Sparking AEx nA (Gc) Ex nA (Gc) US CA Class I Class I Zone 2 Zone 2 ISA 60079-15 CSA C22.2 No. 60079-15 Explosion-proof XP XP US CA Class I Class I Division 1 Division 1 UL 1203 CSA C22.2 No. 30 Contain the explosion and extinguish the flame Flame-proof AEx d (Gb) Ex d (Gb) US CA Class I Class I Zone 1 Zone 1 ISA 60079-1 CSA C22.2 No. 60079-1 Powder Filled AEx q (Gb) Ex q (Gb) US CA Class I Class I Zone 1 Zone 1 ISA 60079-5 CSA C22.2 No. 60079-5 Enclosed Break AEx nC (Gc) Ex nC (Gc) US CA Class I Class I Zone 2 Zone 2 ISA 60079-15 CSA C22.2 No. 60079-15 Intrinsic Safety IS IS AEx ia (Ga) AEx ib (Gb) AEx ic (Gc) Ex ia (Ga) Ex ib (Gb) US CA US US US CA CA Class I Class I Class I Class I Class I Class I Class I Division 1 Division 1 Zone 0 Zone 1 Zone 2 Zone 0 Zone 1 UL 913 / FM 3610 CSA C22.2 No. 157 ISA 60079-11 ISA 60079-11 ISA 60079-11 CSA C22.2 No. 60079-11 CSA C22.2 No. 60079-11 Limit energy of sparks and surface temperature Limited Energy CSA C22.2 No. 60079-15 Pressurized Type X Type X Type Y Type Y Type Z Type Z AEx px (Gb) Ex px (Gb) AEx py (Gb) Ex py (Gb) AEx pz (Gc) Ex pz (Gc) US CA US CA US CA US CA US CA US CA Class I Class I Class I Class I Class I Class I Class I Class I Class I Class I Class I Class I Division 1 Division 1 Division 1 Division 1 Division 2 Division 2 Zone 1 Zone 1 Zone 1 Zone 1 Zone 2 Zone 2 NFPA 496 (FM 3620) NFPA 496 NFPA 496 (FM 3620) NFPA 496 NFPA 496 (FM 3620) NFPA 496 ISA 60079-2 CSA C22.2 No. 60079-2 ISA 60079-2 CSA C22.2 No. 60079-2 ISA 60079-2 CSA C22.2 No. 60079-2 Keep flammable gas out Restricted Breathing AEx nR (Gc) Ex nR (Gc) US CA Class I Class I Zone 2 Zone 2 ISA 60079-15 CSA C22.2 No. 60079-15 Encapsulation AEx ma (Ga) AEx mc (Gc) Ex m AEx mb (Gb) US US CA US Class I Class I Class I Class I Zone 0 Zone 2 Zone 1 Zone 1 ISA 60079-18 ISA 60079-18 CSA C22.2 No. 60079-18 ISA 60079-18 Oil Immersion AEx o (Gb) Ex o (Gb) US CA Class I Class I Zone 1 Zone 1 ISA 60079-6 CSA C22.2 No. 60079-6 Electrical Equipment for Combustible Dust - Class II & Class III General Requirements Ex US CA US US Class II Class II Class III Division 1 & 2 Division 1 & 2 Division 1 & 2 Zone 20, 21, 22 FM 3600 CSA C22.2 No. 25 FM 3600 ISA 60079-0 Dust-Ignition proof CA Class II Class II Division 1 Division 1 UL 1203 CSA C22.2 No. 25 Keep combustible dust out Dust Protected CA Class II Class II Division 2 Division 2 ISA 12.12.01 / FM 3611 CSA C22.2 No. 25 Enclosure AEx ta (Da) AEx tb (Db) AEx tc (Dc) US US US CA CA Class II Class III Zone 20 Zone 21 Zone 22 Division 1 Division 1 ISA 60079-31 ISA 60079-31 ISA 60079-31 CSA C22.2 No. 60079-31 CSA C22.2 No. 60079-31 Fiber & Flying Protection US CA Class III Class III Division 1 & 2 Division 1 & 2 UL 1203 / ISA 12.12.01 CSA C22.2 No. 25 Encapsulation AEx maD AEx mbD US US Zone 20 Zone 21 ISA 61241-18 ISA 61241-18 Pressurization Type X Type X Type Y Type Y Type Z Type Z AEx pD US CA US CA US CA US Class II Class II Class II Class II Class II Class II Class II Division 1 Division 1 Division 1 Division 1 Division 2 Division 2 Zone 21 NFPA 496 (FM 3620) NFPA 496 NFPA 496 (FM 3620) NFPA 496 NFPA 496 (FM 3620) NFPA 496 ISA 61241-2 Intrinsic Safety IS AEx iaD AEx ibD IS US US US US Class II Class III Division 1 Zone 20 Zone 21 Division 1 UL 913 / FM 3610 ISA 61241-11 ISA 61241-11 UL 913 / FM 3610 Limit energy of sparks and surface temperature Ex ta Ex ta Division 2 Division 2 Division 1 Ex tb Class II Class III Class III CA CSA C22.2 No. 60079-31 Ex tb CA Class II Division 1 CSA C22.2 No. 60079-31 Ex tc CA CSA C22.2 No. 60079-31 CSA C22.2 No. 60079-31 Ex tc CA 2 2 2 1 Type of Protection Code (EPL) Country Class Division/Zone Standard Basic Concept of Protection _ _ _ _ Class II Class II Class II _ _ Ex ma CA Class II Class II Class II Division 1 Ex ma Ex mb Ex mb CA Class III Division 1 CA Class II Division 1 CSA C22.2 No. 60079-18 CSA C22.2 No. 60079-18 CSA C22.2 No. 60079-18 CA Class III Division 1 CSA C22.2 No. 60079-18 Ex mc CA Class II Division 2 CSA C22.2 No. 60079-18 Ex mc CA Class III Division 2 CSA C22.2 No. 60079-18 Class II Class II Ex nL (Gc) CA Class I Zone 2 Note 1: For associated intrinsically safe apparatus suitable for installation in a hazardous location, the symbol for the type of protection “ia” or “ib” are enclosed within square brackets on the marking, e.g. AEx d [ia] IIC T4. For intrinsically safe apparatus not suitable for installation in a hazardous location, both the symbol “Ex” or “AEx” and the symbol for the type of protection “ia” or “ib” are enclosed within the same square brackets on the marking, e.g. [AEx ia] IIC; in this case, a temperature class is not included. Note 2: Zones 20-22 are not currently classified in the Canadian Electric Code (CEC ). _ Enclosure Type Ratings [NEC & CEC ] n o i t i n i f e D f e i r B a e r A e p y T 1 Indoor General Purpose 2 Indoor Protection against angled dripping water 3, 3R, 3S Indoor / Outdoor Protection against rain, snow 4, 4X Indoor / Outdoor Protection against rain, snow, hose directed water and corrosion (X only) 5 Indoor Protection against angled dripping water, dust, fibers, flyings 6 Indoor / Outdoor Protection against temporary submersion 6P Indoor / Outdoor Protection against prolonged submersion 12, 12K Indoor Protection against circulating dust, fibers, flyings 13 Indoor Protection against circulating dust, fibers, flyings, seepage Note 4: Group E is applicable to Class II, Division 1 only. Note 5: Metane is a Group IIA Gas for non-mining applications. Note 6: Groups IIIA, IIIB and IIIC have not been adopted by the Canadian Electrical Code. Atmosphere Groups s p u o r G e n o Z s p u o r G n o i s i v i D s s a l C d r a z a H e c n a t s b u S Acetylene Class I Flammable Gases Group A IIC C I I B p u o r G n e g o r d y H B I I C p u o r G e n e l y h t E A I I D p u o r G e n a p o r P A I I D p u o r G e n a h t e M Combustible Metal Dusts Class II Combustible Dusts Group E IIIC B I I I F p u o r G s t s u D s u o e c a n o b r a C e l b i t s u b m o C Combustible Dusts not in Group E or F (Flour, Grain, Wood, Plastics, Chemicals) Group G IIIB Combustible Fibers and Flyings Class III Fibers and Flyings Not Applicable IIIA 4 5 6 6 6 6 Classification of Divisions and Zones Hazard Level Definitions Continuous Hazard Division 1 Zone 0 / Zone 20 A place in which an explosive atmosphere is continually present Intermittent Hazard Zone 1 / Zone 21 A place in which an explosive atmosphere is likely to occur in normal operation Hazard Under Abnormal Conditions Division 2 Zone 2 / Zone 22 A place in which an explosive atmosphere is not likely to occur in normal operation, but may occur for short periods Zone Scheme Division Scheme Temperature Classification Max. Surface Temperature NEC ® 500 CEC ® NEC ® 505 / IEC - Group II 1 T 1 T ) F º 2 4 8 ( C º 0 5 4 2 T 2 T ) F º 2 7 5 ( C º 0 0 3 A 2 T ) F º 6 3 5 ( C º 0 8 2 B 2 T ) F º 0 0 5 ( C º 0 6 2 C 2 T ) F º 6 4 4 ( C º 0 3 2 D 2 T ) F º 9 1 4 ( C º 5 1 2 3 T 3 T ) F º 2 9 3 ( C º 0 0 2 A 3 T ) F º 6 5 3 ( C º 0 8 1 B 3 T ) F º 9 2 3 ( C º 5 6 1 C 3 T ) F º 0 2 3 ( C º 0 6 1 4 T 4 T ) F º 5 7 2 ( C º 5 3 1 A 4 T ) F º 8 4 2 ( C º 0 2 1 5 T 5 T ) F º 2 1 2 ( C º 0 0 1 6 T 6 T ) F º 5 8 1 ( C º 5 8 Note 7: For Group I applications (ATEX and IECEx only), electrical apparatus has fixed temperature limits of 150ºC (where layers of coal dust can form) and 450ºC (where coal dust is not expected to form a layer). 7 Typical ATEX and IECEx Marking II 2 G Ex d IIC T4 Gb 0359 Complies with European Directive* Equipment Protection Level Type of Protection Environment* Equipment Category* Temperature Class (T1-T6) Gas Group Specific Marking for Explosion Protection * Equipment Group* Notified Body Number * *ATEX only Explosion Protection (EPL) Equipment Categories & Protection Levels ATEX Category Equipment Protection Levels Typical Equipment Zone Suitability 1 G Ga Suitable for Zones 0,1,2 1 D Da Suitable for Zones 20,21,22 2 G Gb Suitable for Zones 1,2 2 D Db Suitable for Zones 21,22 3 G Gc Suitable for Zone 2 3 D Dc Suitable for Zone 22 ATEX Categories vs. Zones of Use Equipment Category ATEX 94/9/EC Zone of Use Gas, Vapors, & Mist Dust Category 1 Zone 0, 1 & 2 Zone 20, 21 & 22 Category 2 Zone 1 & 2 Zone 21 & 22 Category 3 Zone 2 Zone 22 Note 8: Unless the explosion protection risk assessment states otherwise. 8 8 Type of Protection Symbol Typical IEC EPL Typical Zone(s) IEC Standard Basic Concept of Protection Electrical Equipment for Gases, Vapors and Mists (G) General Requirements - - 0,1,2 IEC 60079-0 Optical Radiation Op pr Op sh Op is Gb Ga Ga 1,2 0,1,2 0,1,2 IEC 60079-28 IEC 60079-28 IEC 60079-28 Inherently safe protected by shutdown Increased Safety Type ‘n’ (Non-Sparking) e nA Gb Gc 1,2 2 IEC 60079-7 IEC 60079-15 No arcs, sparks or hot surfaces Enclosure IP54 or better 1 - 9 7 0 0 6 C E I 2 , 1 b G d Contain the explosion, quench the flame Type ‘n’ (Enclosed Break) nC Gc 2 IEC 60079-15 Quartz/Sand Filled q Gb 1,2 IEC 60079-5 Quench the flame Intrinsic Safety ia ib ic Ga Gb Gc 0,1,2 1,2 2 IEC 60079-11 IEC 60079-11 IEC 60079-11 Limit the energy of sparks and surface temperatures Pressurized px py pz Gb Gb Gc 1,2 1,2 2 IEC 60079-2 IEC 60079-2 IEC 60079-2 Keep the flammable gas out Type ‘n’ (Sealing & Hermetically Sealed) Type ‘n’ (Restricted Breathing) nC nR Gc Gc 2 2 IEC 60079-15 IEC 60079-15 Encapsulation ma mb mc Ga Gb Gc 0,1,2 1,2 2 IEC 60079-18 IEC 60079-18 IEC 60079-18 Oil Immersion o Gb 1,2 IEC 60079-6 Electrical Equipment for Combustible Dusts (D) General Requirements - - 20,21,22 IEC 60079-0 Enclosure ta tb tc Da Db Dc 20 21 22 IEC 60079-31 Standard protection for dusts, rugged tight enclosure Intrinsic Safety ia ib ic Da Db Dc 20 21 22 IEC 60079-11 Similar to enclosure, but with some relaxations if circuit inside is intrinsically safe Encapsulation ma mb mc Da Db Dc 20 21 22 IEC 60079-18 Protection by encapsulation of incendive parts D p d e z i r u s s e r P Db 21,22 IEC 61241-4 Protection by pressurization of enclosure Dc 22 Non-Electrical Equipment General Requirements - - 0,1,2, 20,21,22 EN 13463-1 Low potential energy Flow Restricted Enclosure Flame-proof Enclosure fr d - - 2,22 1,2,21,22 EN 13463-2 EN 13463-3 Relies on tight seals, closely matched joints and tough enclosures to restrict the breathing of the enclosure Constructional Safety c - 0,1,2, 20,21,22 EN 13463-5 Ignition hazards eliminated by good engineering methods Control of Ignition Sources b - 0,1,2, 20,21,22 EN 13463-6 Control equipment fitted to detect malfunctions 1,2, 21,22 EN 60079-2 EN 61241-4 Enclosure is purged and pressurized to prevent ignition sources from arising 0,1,2, 20,21,22 EN 13463-8 Enclosure uses liquid to prevent contact with explosive atmosphere Flame-proof Protection Concepts [ATEX and IECEx] Liquid Immersion k - Purged / p - Pressurized Purged / Ingress Protection Codes [IEC 60529] First Number (protect from solid bodies) Second Number (protect from water) 0 No Protection 0 No protection 1 Objects > 50mm 1 Vertical drip 2 Objects > 12.5mm 2 Angled drip 3 Objects > 2.5mm 3 Spraying 4 Objects > 1.0mm 4 Splashing 5 Dust-Protected 5 Jetting 6 Dust-Tight 6 Powerful jetting 7 Temporary immersion 8 Continuous immersion Atmosphere Groups [ATEX & IECEx] Group Environment Location Typical Substance I Gases, Vapors and Mists Coal Mining Methane (Fire damp) IIA Surface and Other Locations Methane, Propane, etc. e n e l y h t E B I I IIC Hydrogen, Acetylene, etc. IIIA Combustible Dusts Surface and Other Locations Combustible flyings e v i t c u d n o c - n o N B I I I IIIC Conductive High pressure and temperature water jet 9 Electromagnetic Compatibility (EMC) Machinery Pressure Equipment Low Voltage (excludes equipment for use in explosive atmospheres - see ATEX Annex II 1.2.7) Radio Equipment and Telecommunications Terminal Equipment (R&TTE) Directive 2004/108/EC Directive 2006/42/EC Directive 97/23/EC Directive 2006/95/EC Directive 1999/5/EC Other CE Directives That May Be Applicable DIP US NI US Additional Market Access: IECEx Scheme Manufacturers of Ex equipment can obtain certificates of conformity that will be accepted at a national level in all countries that participate in the IECEx Scheme. A certificate of conformity may be obtained from any certification body accepted into the Scheme. The certificate will attest that (1) the equipment design conforms to relevant IEC Standards and (2) the product is manufactured under a quality plan assessed by an Approved IECEx Certification Body (Ex CBs). Manufacturers holding certificates of conformity may affix the IECEx Mark of Conformity to equipment they have verified complies with the certified design. Intertek is an IECEx Testing Laboratory and has IECEx Accepted Certification Body status. For more information on the IECEx Scheme, contact us at [email protected] or visit www.IECEx.com. ® ® ® ® ® Equipment Groups [ATEX] Equipment Group ATEX Equipment Category Atmosphere Equipment Protection Level (EPL) Required Protection Performance & Operation I (Mines with Firedamp) M1 Methane & Dust Very High Ma Two faults, Remain energized and functioning I (Mines with Firedamp) M2 Methane & Dust High Mb Severe normal operation, De-energize in exp. atm. II (All Other Areas) 1G, 1D Gas, Vapor, Mist, Dust Very High Two faults II (All Other areas) 2G, 2D Gas, Vapor, Mist, Dust High One fault II (All Other Areas) 3G, 3D Gas, Vapor, Mist, Dust Low Normal operation Product Category Standard(s) Standards by Product Types Class & Division Luminaires CSA C22.2 No. 137 “Electric luminaires for use in hazardous locations” Class I, Divisions 1 & 2 Class II, Divisions 1 & 2 Motors and Generators (Explosion-proof & Dust-ignition proof) UL 674 “Electric motors and generators for use in hazardous (classified) locations” Class I, Division 1, Groups B,C,D Class I, Zone 1, Groups IIA, IIB, IIB+H2 Class II, Division 1, Groups E,F,G CSA C22.2 No. 145 “Electric motors and generators for use in hazardous (classified) locations” Class II, Zones 20, 21 Industrial Control Panels UL 698A “Industrial control panels relating to hazardous (classified) locations” Associated apparatus for the following hazardous (classified) locations: Class I, Division 1 Class I, Zone 0 and Zone 1 Class II, Division 1 Class III, Division 1 Class II, Zone 20 and Zone 21 CSA C22.2 No. 14 “Industrial control equipment” Section 4.18 Control panels located in ordinary locations with intrinsically safe barriers: Class I, Division 1 Class I, Zone 0 and Zone 1 Class II, Division 1 Flashlights UL 783 “Electric flashlights and lanterns for use in hazardous (classified) locations” Class I, Divisions 1 & 2 Class II, Divisions 1 & 2 Class I, Zones 1 & 2 Heaters UL 823 “Electric heaters for use in hazardous (classified) locations” Class I, Divisions 1 & 2 Class II, Divisions 1 & 2 Class III, Divisions 1 & 2 Class I, Zone 1 Class II, Zones 20, 21, and 22 Fuel Dispensing Equipment UL 87 “Power-operated dispensing devices for petroleum products” Areas classified for fuel dispensing equipment per national and local codes UL 1238 “Control equipment for use with flammable liquid dispensing devices” CSA C22.2 No. 22 “Electrical equipment for flammable and combustible fuel dispensers” UL 844 “Luminaires for use in Hazardous (Classified) Locations” Class I, Divisions 1 & 2 Class II, Divisions 1 & 2 Class I, Zones 1 & 2 Class II, Zones 20, 21, 22 Class III UL 87A Dispensers for gasoline and ethonol blends, E0 to E85 UL 87B Dispensers for diesel fuel, bio diesel blends to B20, kerosene and fuel oil UL 87C Dispensers for diesel exhaust fluids 3 3 Note 3: UL 674 and CSA 145 are harmonized standards.

Hazardous Locations Poster 2014

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Hazardous Locations Poster 2014

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  • HZL 0314

    ATEX & IECExNORTH AMERICA

    Contact Intertek with questions about Hazardous Locations & Explosive Atmospheres testing and [email protected] 1-800-WORLDLAB (967-5352) www.intertek.com/hazardous-locations

    Hazardous Locations & Explosive AtmospheresGuide to Equipment Certification Requirements

    Typical North American MarkingemehcS enoZemehcS noisiviD

    Class I Zone 0 AEx ia IIC T4 Ga

    Hazard Class

    Protection Concept

    Code

    Area Classification

    Approved to US Standards

    Class I Division 1 Groups A&B T4

    Temperature Class

    Gas Group

    Hazard Class

    Area Classification

    Temperature Class

    Gas Group

    EquipmentProtection

    Level

    NORTH AMERICA and ATEX & IECEx

    _

    Protection Concepts [NEC & CEC ]

    Electrical Equipment for Flammable Gas, Vapors and Mist - Class I

    General Requirements AEx

    Ex

    USUSCA

    Class IClass IClass I

    Division 1 & 2Division 1 & 2Division 1 & 2

    FM 3600ISA 60079-0CSA C22.2 No. 60079-0

    Increased Safety

    AEx e (Gb)Ex e (Gb)

    USCA

    Class IClass I

    Zone 1Zone 1

    ISA 60079-7CSA C22.2 No. 60079-7

    No arcs, sparks or hot surfaces

    Non-IncendiveNINI

    USCA

    Class IClass I

    Division 2Division 2

    ISA 12.12.01/FM 3611CSA C22.2 No. 213

    Non-SparkingAEx nA (Gc)Ex nA (Gc)

    USCA

    Class IClass I

    Zone 2Zone 2

    ISA 60079-15CSA C22.2 No. 60079-15

    Explosion-proofXPXP

    USCA

    Class IClass I

    Division 1Division 1

    UL 1203CSA C22.2 No. 30

    Contain the explosion and extinguish the ame

    Flame-proofAEx d (Gb)Ex d (Gb)

    USCA

    Class IClass I

    Zone 1Zone 1

    ISA 60079-1CSA C22.2 No. 60079-1

    Powder FilledAEx q (Gb)Ex q (Gb)

    USCA

    Class IClass I

    Zone 1Zone 1

    ISA 60079-5CSA C22.2 No. 60079-5

    Enclosed BreakAEx nC (Gc)Ex nC (Gc)

    USCA

    Class IClass I

    Zone 2Zone 2

    ISA 60079-15CSA C22.2 No. 60079-15

    Intrinsic Safety

    ISISAEx ia (Ga)AEx ib (Gb)AEx ic (Gc) Ex ia (Ga)Ex ib (Gb)

    USCAUSUSUSCACA

    Class IClass IClass IClass IClass IClass IClass I

    Division 1Division 1Zone 0Zone 1Zone 2Zone 0Zone 1

    UL 913 / FM 3610CSA C22.2 No. 157ISA 60079-11 ISA 60079-11ISA 60079-11 CSA C22.2 No. 60079-11CSA C22.2 No. 60079-11

    Limit energy ofsparks and surfacetemperature

    Limited Energy CSA C22.2 No. 60079-15

    Pressurized

    Type X Type X Type Y Type Y Type Z Type Z AEx px (Gb) Ex px (Gb) AEx py (Gb) Ex py (Gb) AEx pz (Gc) Ex pz (Gc)

    US CA US CA US CA US CA US CA US CA

    Class IClass IClass IClass IClass IClass IClass IClass IClass IClass IClass IClass I

    Division 1 Division 1 Division 1 Division 1 Division 2 Division 2 Zone 1 Zone 1 Zone 1 Zone 1 Zone 2 Zone 2

    NFPA 496 (FM 3620)NFPA 496NFPA 496 (FM 3620)NFPA 496NFPA 496 (FM 3620)NFPA 496ISA 60079-2CSA C22.2 No. 60079-2ISA 60079-2CSA C22.2 No. 60079-2ISA 60079-2CSA C22.2 No. 60079-2

    Keep ammable gas out

    Restricted Breathing

    AEx nR (Gc)Ex nR (Gc)

    USCA

    Class IClass I

    Zone 2Zone 2

    ISA 60079-15CSA C22.2 No. 60079-15

    Encapsulation

    AEx ma (Ga)

    AEx mc (Gc) Ex m

    AEx mb (Gb) US

    US CA

    US Class I

    Class IClass I

    Class IZone 0

    Zone 2 Zone 1

    Zone 1 ISA 60079-18

    ISA 60079-18CSA C22.2 No. 60079-18

    ISA 60079-18

    Oil ImmersionAEx o (Gb)Ex o (Gb)

    USCA

    Class IClass I

    Zone 1Zone 1

    ISA 60079-6CSA C22.2 No. 60079-6

    Electrical Equipment for Combustible Dust - Class II & Class III

    General Requirements

    Ex

    US CA US US

    Class IIClass IIClass III

    Division 1 & 2 Division 1 & 2 Division 1 & 2 Zone 20, 21, 22

    FM 3600CSA C22.2 No. 25FM 3600ISA 60079-0

    Dust-Ignitionproof CA

    Class IIClass II

    Division 1 Division 1

    UL 1203CSA C22.2 No. 25

    Keepcombustibledust out

    Dust ProtectedCA

    Class IIClass II

    Division 2 Division 2

    ISA 12.12.01 / FM 3611CSA C22.2 No. 25

    Enclosure AEx ta (Da) AEx tb (Db)AEx tc (Dc)

    USUSUSCA

    CA

    Class II

    Class III

    Zone 20Zone 21Zone 22Division 1

    Division 1

    ISA 60079-31ISA 60079-31ISA 60079-31CSA C22.2 No. 60079-31

    CSA C22.2 No. 60079-31

    Fiber & Flying Protection

    US CA

    Class IIIClass III

    Division 1 & 2 Division 1 & 2

    UL 1203 / ISA 12.12.01CSA C22.2 No. 25

    Encapsulation

    AEx maD AEx mbD

    US US

    Zone 20 Zone 21

    ISA 61241-18ISA 61241-18

    Pressurization

    Type X Type XType YType YType ZType ZAEx pD

    US CA US CAUS CA US

    Class IIClass IIClass IIClass IIClass IIClass IIClass II

    Division 1 Division 1 Division 1 Division 1 Division 2 Division 2 Zone 21

    NFPA 496 (FM 3620)NFPA 496NFPA 496 (FM 3620)NFPA 496NFPA 496 (FM 3620)NFPA 496ISA 61241-2

    Intrinsic Safety

    ISAEx iaD AEx ibD IS

    USUS US US

    Class II

    Class III

    Division 1Zone 20 Zone 21 Division 1

    UL 913 / FM 3610ISA 61241-11ISA 61241-11UL 913 / FM 3610

    Limit energy ofsparks andsurfacetemperature

    Ex taEx ta

    Division 2Division 2

    Division 1

    Ex tbClass IIClass III

    Class IIICA CSA C22.2 No. 60079-31Ex tb CA Class II Division 1 CSA C22.2 No. 60079-31

    Ex tc CA CSA C22.2 No. 60079-31CSA C22.2 No. 60079-31Ex tc CA

    2

    2

    2

    1

    Type of Protection

    Code (EPL) Country Class Division/Zone Standard Basic Conceptof Protection

    _

    ___

    Class IIClass IIClass II

    __

    Ex ma CA

    Class IIClass II

    Class II Division 1 Ex ma

    Ex mb

    Ex mb

    CA Class III Division 1

    CA Class II Division 1

    CSA C22.2 No. 60079-18

    CSA C22.2 No. 60079-18CSA C22.2 No. 60079-18

    CA Class III Division 1 CSA C22.2 No. 60079-18

    Ex mc CA Class II Division 2 CSA C22.2 No. 60079-18

    Ex mc CA Class III Division 2 CSA C22.2 No. 60079-18

    Class IIClass II

    Ex nL (Gc) CA Class I Zone 2

    Note 1: For associated intrinsically safe apparatus suitable for installation in a hazardous location, the symbol for the type of protection ia or ib are enclosed within square brackets on the marking, e.g. AEx d [ia] IIC T4. For intrinsically safe apparatus not suitable for installation in a hazardous location, both the symbol Ex or AEx and the symbol for the type of protection ia or ib are enclosed within the same square brackets on the marking, e.g. [AEx ia] IIC; in this case, a temperature class is not included.Note 2: Zones 20-22 are not currently classied in the Canadian Electric Code (CEC ).

    _

    Enclosure Type Ratings [NEC & CEC ] noitinifeD feirB aerAepyT

    1 Indoor General Purpose

    2 Indoor Protection against angled dripping water

    3, 3R, 3SIndoor / Outdoor

    Protection against rain, snow

    4, 4XIndoor / Outdoor

    Protection against rain, snow, hose directed water and corrosion (X only)

    5 Indoor Protection against angled dripping water, dust, fibers, flyings

    6Indoor / Outdoor

    Protection against temporary submersion

    6PIndoor / Outdoor

    Protection against prolonged submersion

    12, 12K Indoor Protection against circulating dust, fibers, flyings

    13 Indoor Protection against circulating dust, fibers, flyings, seepage

    Note 4: Group E is applicable to Class II, Division 1 only.Note 5: Metane is a Group IIA Gas for non-mining applications.Note 6: Groups IIIA, IIIB and IIIC have not been adopted by the Canadian Electrical Code.

    Atmosphere Groups spuorG enoZspuorG noisiviDssalC drazaHecnatsbuS

    Acetylene

    Class IFlammable Gases

    Group A IIC

    CIIB puorGnegordyH

    BIIC puorGenelyhtE

    AIID puorGenaporP

    AIID puorGenahteM

    Combustible Metal Dusts

    Class IICombustible Dusts

    Group E IIIC

    BIIIF puorGstsuD suoecanobraC elbitsubmoC

    Combustible Dusts not in Group E or F (Flour, Grain, Wood, Plastics, Chemicals) Group G IIIB

    Combustible Fibers and FlyingsClass III

    Fibers and FlyingsNot Applicable IIIA

    4

    5

    6

    6

    6

    6

    Classication of Divisions and ZonesHazard Level Definitions

    Continuous Hazard

    Division 1

    Zone 0 / Zone 20A place in which an explosive atmosphere is continually present

    Intermittent Hazard

    Zone 1 / Zone 21A place in which an explosive atmosphere is likely to occur in normal operation

    Hazard Under Abnormal Conditions

    Division 2 Zone 2 / Zone 22A place in which an explosive atmosphere is not likely to occur in normal operation, but may occur for short periods

    Zone SchemeDivision Scheme

    Temperature ClassicationMax. Surface Temperature NEC 500 CEC NEC 505 / IEC - Group II

    1T1T )F248( C 054

    2T2T)F275( C 003

    A2T)F635( C 082

    B2T)F005( C 062

    C2T)F644( C 032

    D2T)F914( C 512

    3T3T)F293( C 002

    A3T)F653( C 081

    B3T)F923( C 561

    C3T)F023( C 061

    4T4T)F572( C 531

    A4T)F842( C 021

    5T5T)F212( C 001

    6T6T)F581( C 58

    Note 7: For Group I applications (ATEX and IECEx only), electrical apparatus has fixed temperature limits of 150C (where layers of coal dust can form) and 450C (where coal dust is not expected to form a layer).

    7

    Typical ATEX and IECEx Marking

    II 2 G Ex d IIC T4 Gb0359Complies

    with European Directive*

    Equipment Protection

    Level

    Type of Protection

    Environment*

    Equipment Category*

    Temperature Class (T1-T6)

    Gas GroupSpecific Marking for Explosion

    Protection* Equipment Group*Notified Body

    Number* *ATEX only

    Explosion Protection

    (EPL)

    Equipment Categories & Protection Levels

    ATEX Category

    Equipment Protection

    Levels

    Typical Equipment Zone Suitability

    1 G Ga Suitable for Zones 0,1,2

    1 D Da Suitable for Zones 20,21,22

    2 G Gb Suitable for Zones 1,2

    2 D Db Suitable for Zones 21,22

    3 G Gc Suitable for Zone 2

    3 D Dc Suitable for Zone 22

    ATEX Categories vs. Zones of Use

    Equipment Category

    ATEX 94/9/EC

    Zone of Use

    Gas, Vapors,& Mist

    Dust

    Category 1 Zone 0, 1 & 2 Zone 20, 21 & 22

    Category 2 Zone 1 & 2 Zone 21 & 22

    Category 3 Zone 2 Zone 22

    Note 8: Unless the explosion protection risk assessment states otherwise.

    8 8

    Type of Protection SymbolTypical IEC EPL

    Typical Zone(s)

    IEC StandardBasic Concept of

    Protection

    Electrical Equipment for Gases, Vapors and Mists (G)

    General Requirements - - 0,1,2 IEC 60079-0

    Optical RadiationOp prOp shOp is

    Gb GaGa

    1,20,1,20,1,2

    IEC 60079-28IEC 60079-28IEC 60079-28

    Inherently safe protected by shutdown

    Increased SafetyType n (Non-Sparking)

    e nA

    GbGc

    1,22

    IEC 60079-7IEC 60079-15

    No arcs, sparks or hot surfaces Enclosure IP54 or better

    1-97006 CEI2,1bGd Contain the explosion, quench the flameType n (Enclosed Break) nC Gc 2 IEC 60079-15

    Quartz/Sand Filled q Gb 1,2 IEC 60079-5 Quench the flame

    Intrinsic Safetyia ib ic

    GaGbGc

    0,1,21,22

    IEC 60079-11IEC 60079-11IEC 60079-11

    Limit the energy of sparks and surface temperatures

    Pressurized

    px pypz

    GbGbGc

    1,21,22

    IEC 60079-2IEC 60079-2IEC 60079-2

    Keep the flammable gas out

    Type n (Sealing & Hermetically Sealed)Type n (Restricted Breathing)

    nC

    nR

    Gc

    Gc

    2

    2

    IEC 60079-15

    IEC 60079-15

    Encapsulationmambmc

    GaGbGc

    0,1,21,22

    IEC 60079-18IEC 60079-18IEC 60079-18

    Oil Immersion o Gb 1,2 IEC 60079-6

    Electrical Equipment for Combustible Dusts (D)

    General Requirements - - 20,21,22 IEC 60079-0

    Enclosuretatbtc

    DaDbDc

    202122

    IEC 60079-31Standard protection for dusts, rugged tight enclosure

    Intrinsic Safetyiaibic

    DaDbDc

    202122

    IEC 60079-11

    Similar to enclosure, but with some relaxations if circuit inside is intrinsically safe

    Encapsulationmambmc

    DaDbDc

    202122

    IEC 60079-18Protection by encapsulation of incendive parts

    DpdezirusserPDb 21,22

    IEC 61241-4Protection by pressurization of enclosureDc 22

    Non-Electrical Equipment

    General Requirements - - 0,1,2,

    20,21,22EN 13463-1 Low potential energy

    Flow Restricted Enclosure Flame-proof Enclosure

    fr d

    - -

    2,22 1,2,21,22

    EN 13463-2 EN 13463-3

    Relies on tight seals, closely matched joints and tough enclosures to restrict the breathing of the enclosure

    Constructional Safety c - 0,1,2,

    20,21,22EN 13463-5

    Ignition hazards eliminated by good engineering methods

    Control of Ignition Sources b - 0,1,2,

    20,21,22EN 13463-6

    Control equipment fitted to detect malfunctions

    1,2,21,22

    EN 60079-2EN 61241-4

    Enclosure is purged and pressurized to prevent ignition sources from arising

    0,1,2,20,21,22

    EN 13463-8Enclosure uses liquid to prevent contact with explosive atmosphere

    Flame-proof

    Protection Concepts [ATEX and IECEx]

    Liquid Immersion k -

    Purged /

    p -PressurizedPurged /

    Ingress Protection Codes[IEC 60529]

    First Number (protect from solid bodies)

    Second Number (protect from water)

    0 No Protection 0 No protection

    1 Objects > 50mm 1 Vertical drip

    2 Objects > 12.5mm 2 Angled drip

    3 Objects > 2.5mm 3 Spraying

    4 Objects > 1.0mm 4 Splashing

    5 Dust-Protected 5 Jetting

    6 Dust-Tight 6 Powerful jetting

    7 Temporary immersion

    8 Continuous immersion

    Atmosphere Groups [ATEX & IECEx]

    Group Environment Location Typical Substance

    I

    Gases, Vapors and

    Mists

    Coal Mining

    Methane (Fire damp)

    IIA Surface and

    Other Locations

    Methane, Propane, etc.

    enelyhtEBII

    IICHydrogen,

    Acetylene, etc.

    IIIA

    Combustible Dusts

    Surface and

    Other Locations

    Combustible flyings

    evitcudnoc-noNBIII

    IIIC Conductive

    High pressure and temperature water jet

    9

    Electromagnetic Compatibility (EMC)

    Machinery

    Pressure Equipment

    Low Voltage (excludes equipment for use in explosive atmospheres - see ATEX Annex II 1.2.7)

    Radio Equipment and Telecommunications Terminal Equipment (R&TTE)

    Directive 2004/108/EC

    Directive 2006/42/EC

    Directive 97/23/EC

    Directive 2006/95/EC

    Directive 1999/5/EC

    Other CE Directives That May Be Applicable

    DIP US

    NI US

    Additional Market Access: IECEx Scheme Manufacturers of Ex equipment can obtain certificates of conformity that will be accepted at a national level in all countries that participate in the IECEx Scheme.

    A certificate of conformity may be obtained from any certification body accepted into the Scheme. The certificate will attest that (1) the equipment design conforms to relevant IEC Standards and (2) the product is manufactured under a quality plan assessed by an Approved IECEx Certification Body (Ex CBs).

    Manufacturers holding certificates of conformity may affix the IECEx Mark of Conformity to equipment they have verified complies with the certified design.

    Intertek is an IECEx Testing Laboratory and has IECEx Accepted Certification Body status. For more information on the IECEx Scheme, contact us at [email protected] or visit www.IECEx.com.

    Equipment Groups [ATEX]

    Equipment GroupATEX

    Equipment Category

    AtmosphereEquipmentProtection Level (EPL)

    Required Protection Performance & Operation

    I (Mines with Firedamp) M1 Methane & Dust Very High Ma

    Two faults, Remain energized and functioning

    I (Mines with Firedamp) M2 Methane & Dust High Mb

    Severe normal operation, De-energize in exp. atm.

    II (All Other Areas) 1G, 1D Gas, Vapor, Mist, Dust Very High Two faults

    II (All Other areas) 2G, 2D Gas, Vapor, Mist, Dust High One fault

    II (All Other Areas) 3G, 3D Gas, Vapor, Mist, Dust Low Normal operation

    Product Category Standard(s)

    Standards by Product TypesClass & Division

    Luminaires

    CSA C22.2 No. 137 Electric luminaires for use in hazardous locations

    Class I, Divisions 1 & 2Class II, Divisions 1 & 2

    Motors and Generators (Explosion-proof &Dust-ignition proof)

    UL 674 Electric motors and generators for use in hazardous (classified) locations

    Class I, Division 1, Groups B,C,DClass I, Zone 1, Groups IIA, IIB, IIB+H2Class II, Division 1, Groups E,F,G

    CSA C22.2 No. 145 Electric motors and generators for use in hazardous (classified) locations

    Class II, Zones 20, 21

    Industrial Control Panels

    UL 698A Industrial control panelsrelating to hazardous (classified)locations

    Associated apparatus for the followinghazardous (classified) locations:Class I, Division 1Class I, Zone 0 and Zone 1Class II, Division 1Class III, Division 1Class II, Zone 20 and Zone 21

    CSA C22.2 No. 14 Industrial control equipment Section 4.18

    Control panels located in ordinary locations with intrinsically safe barriers:Class I, Division 1Class I, Zone 0 and Zone 1Class II, Division 1

    Flashlights UL 783 Electric flashlights and lanterns for use in hazardous (classified) locations

    Class I, Divisions 1 & 2Class II, Divisions 1 & 2Class I, Zones 1 & 2

    Heaters UL 823 Electric heaters for use in hazardous (classified) locations

    Class I, Divisions 1 & 2Class II, Divisions 1 & 2Class III, Divisions 1 & 2Class I, Zone 1Class II, Zones 20, 21, and 22

    Fuel DispensingEquipment

    UL 87 Power-operated dispensingdevices for petroleum products

    Areas classified for fuel dispensing equipment per national and local codes

    UL 1238 Control equipment for usewith flammable liquid dispensingdevices

    CSA C22.2 No. 22 Electrical equipment for flammable and combustible fuel dispensers

    UL 844 Luminaires for use in Hazardous (Classified) Locations

    Class I, Divisions 1 & 2Class II, Divisions 1 & 2Class I, Zones 1 & 2Class II, Zones 20, 21, 22Class III

    UL 87A Dispensers for gasoline and ethonol blends, E0 to E85

    UL 87B Dispensers for diesel fuel, biodiesel blends to B20, kerosene and fuel oil

    UL 87C Dispensers for diesel exhaust fluids

    3

    3

    Note 3: UL 674 and CSA 145 are harmonized standards.