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TÜV 10 ATEX 2539 X

Group II

4  II (3)G

Conditions in Hazardous Areas (ATEX 94/9/EG)

[Ex ia] IIB T4

1 0044

Conditions Marking

Equipment can beused without restriction

–

Observe specialoperating conditions

X

Ex component withpart certificate cannotbe used alone;CE conformity is onlycertified after installationin complete equipment

U

Associa-tedequip-ment [ ]

Useoutsidehazardousarea,effectivein Ex area

EN60079-0(2006)

[Ex ib] IIB

EN60079-0(starting fromEdition 5.0)

[Ex ib Ga] IIB

Equip-ment

Usewithinhazardousarea

EN60079-0(2006)

Ex ib IIB T4

EN60079-0(starting fromEdition 5.0)

Ex ib IIB T4 Ga

Flamma-ble sub-stances

Class Division Group Zone Temporary behavior ofthe flammable sub-stance in Ex area

Gases,vapors,liquids

Class I 1 A, B , C, D 0 or 1 Permanent ly, for longperiods, frequently

Occasionally

2 A, B, C, D 2 Normally not, only fora short period

Dust Class II 1 E, F, G 20 or 21 Permanently, for longperiods, frequently

Occasionally

2 E, F 22 Normally not, only fora short period

Fibers Class III 1 – 20 or 21 Constantly

Occasionally

2 – 22 Normally not, only fora short period

Gas ignition temperatures

Ammonia 630°C

Methane 595°C

Hydrogen 560°C

Propane 470°C

Ethylene 425°C

Butane 365°C

Acetylene 305°C

Cyclohexane 259°C

Diethyl ether 170°C

Carbon disulfide 95°C

Gas Ignition Temperatures

Ammonia 630°C

Methane 595°C

Hydrogen 560°C

Propane 470°C

Ethylene 425°C

Butane 365°C

Acetylene 305°C

Cyclohexane 259°C

Diethyl ether 170°C

Carbon disulfide 95°C

 Year “ATmosphère EXplosible” EC directive

Approvalnumber

Group A: Acetylene, B: Hydrogen, C: Ethylene, D: PropaneGroup E: Metal dust, F: Coal dust, G: Grain dust

Gas Conditions Group I

Methane Minessusceptibleto firedamp(coal mining)

150°C With deposits of coal dust onthe operating equipment

450°C Without deposits of coal duston the operating equipment

Ex mark perDirective 94/9/EG (ATEX)

Associa-tedequip-ment [ ]

Use outsidehazardous area,effective in Ex area

ANSI/ISA60079-0 [AEx ib] IIB

Equip-ment

Use withinhazardousarea

ANSI/ISA60079-0 AEx ib IIB T6

Flammablesubstances

Temporary behavior of theflammable substance in Exareas

Classification of thehazardous area

Gases,vapors,liquids

Permanently, for long periods,frequently

Zone 0

Occasionally Zone 1

Normally not, only for a shortperiod

Zone 2

Passive Components Energy Storing Devices Energy Sources*

Pt100 Capacitor Thermocouple

Switch Coil Photo cells

Distributionboxes

*RequirementsU 1 1.5 V; I 1 100 mA; P 1 25 mW

ResistorsValues must be exactly defined and consideredwhen determining overall system safety

Flammablesubstances

Temporary behavior offlammable substances

Classification of ha-zardous areas

Required marking for equipmentto be used per CENELEC

IEC 600079-0(starting fromEdition 5.0)

Device Group Category Equipm. Protect.Level (EPL)

Gases,vapors,liquids

Permanently, for longperiods, frequently

Zone 0 II 1G, (1)G Ga, [Ga]

Occasionally Zone 1 II 2G, (2)G Gb, [Gb]

Normally not, only fora short period

Zone 2 II 3G, (3)G Gc, [Gc]

Dust Permanently, for longperiods, frequently

Zone 20 II III (IEC 60079-0,startingfromEdition5.0)

1D, (1)D Da, [Da]

Occasionally Zone 21 II III (IEC 60079-0,startingfromEdition5.0)

2D, (2)D Db, [Db]

Normally not, only fora short period

Zone 22 II III (IEC 60079-0,startingfromEdition5.0)

3D, (3)D Dc, [Dc]

Methane,coal dust

Constantly Coal mining I M1 Ma

Methane,coal dust

Frequently Coal mining I M2 Mb

CENELECMarking

TypicalGas

Ignition Energy/µJ

III AII BII C

MethanePropaneEthyleneHydrogen

280> 18060 ... 180> 40

CENELECMarking

TypicalGas

Ignition Energy/µJ

III AII BII C

MethanePropaneEthyleneHydrogen

280> 18060 ... 180> 40

IEC 60079-0 (starting from Edition 5.0)CENELECMarking

Typical dusts

III AIII BIII C

Flammable lintNon-conducting dustConducting dust

US marking

Protection type for electrical equipmentin gas explosive hazardous areas

Protection principle Zone Standard Class/Zone Application

EN IEC UL

o Oil encapsulation Exclusion of the Ex atmosphere 1 or 2 EN 60079-6 IEC 60079-6 UL 60079-6

Class I, Zone 1

Transformers, starting resistors,switching devices

q Sand encapsulation Spark prevention 1 or 2 EN 60079-5 IEC 60079-5 UL 60079-5Transformers, relays,safety fuses, switches

mamb

Molded encapsulation Exclusion of the Ex atmosphere0, 1, 2

1, 2EN 60079-18 IEC 60079-18 UL 60079-18 Relays, sensors, solenoid valves

pxpypz

Pressure encapsulation Exclusion of the Ex atmosphere0, 1, 2

1, 22

EN 60079-2 IEC 60079-2 ISA 60079-2Class I,Div. 1/2

Switch and control cabinets

d Pressure-tight encapsulation Propagation prevention 1 or 2 EN 60079-1 IEC 60079-1 UL 60079-1Switch and command systems,heating equipment, lights

e Increased safety Spark prevention 1 or 2 EN 60079-7 IEC 60079-7 UL 60079-7 Class I, Zone 1 Junction and connection boxes, housings,terminal blocks

iaibic

Intrinsic safety Ignition energy limitation

0, 1, 2

1, 22

EN 60079-11 IEC 60079-11 UL 60079-11 Class I, Div. 1Measuring and control technology, sensors,actuators

EN 60079-25 IEC 60079-25 UL 60079-25 Intrinsically safe systems

EN 60079-27 IEC 60079-27 UL 60079-27 Intrinsically safe fieldbus systems (FISCO)

nA Non-sparking equipment Comparable with Ex e 2

EN 60079-15 IEC 60079-15 UL 60079-15 Class I, Zone 2 Approved for Zone 2nC Sparking equipment Comparable with Ex d 2

nR Vapor-proof equipment Protection by housing 2

op isop prop sh

Optical radiationIntrinsically safe

ProtectedLocked

12

3

EN 60079-28 IEC 60079-28 UL 60079-28 Optoelectronic devices

Protection type for electrical equipmentin areas with flammable dust

Protection principleZone Standard Class/Zone Application

EN IEC UL

tD Protection by housing Exclusion of the Ex atmosphere 21 or 22 EN 61241-1 IEC 61241-1 Class II, Div. 1 Junction and connection boxes, switchingdevices and switchgear units, lights

iaD, ibD Intrinsic safetyEnergy limitation of sparksand temperatures

20, 21 or 22 EN 61241-11 IEC 61241-11 UL 913 Class II, Div. 1Measuring and control technology, sensors,actuators

pD Pressure encapsulation Exclusion of the Ex atmosphere 21 or 22 EN 61241-4 IEC 61241-4 NFPA 496Class II, Div.1/2

Switch and control cabinets, motors

maD, mbD Molded encapsulation Exclusion of the Ex atmosphere 20, 21 or 22 EN 61241-18 IEC 61241-18Command, signaling and display devices,sensors

Protection Type

Category

1G Use in a defined area

(1)G Use outside hazardous area,effective up to the described area

Gas Conditions Group I

Methane Mines susceptible tofiredamp(coal mining)

150°C With deposits of coal dust onthe operating equipment

450°C Without deposits of coal duston the operating equipment

ID No. Notified Body/Official Testing Agency(Examples)

Country

0 04 4 TÜV Nord G erma ny

0102 P TB Germany

01 58 E XA M G er many

06 37 I BE xU Ge rm any

0 08 0 I NE RI S Fr an ce

0081 LC IE France

0 34 4 K EMA Nethe rlan ds

0402 SP Sweden

0163 LOM Spain

0 60 0 EECS (BA SEEFA ) U K

0518 SCS UK

www.wago.comPlease find additional information at

Ex Marking acc. to Standard (Example)

Dust Group

Gas Group / Ignition Energy Permissible Surface Temperature per IEC 505

Protection Type

Intrinsic Safety, Simple Electrical Equipment

Conditions in Ex Areas Ex Marking acc. to Standard

Gas Group / Ignition Energy

Conditions in Hazardous Areas, USA Permissible Surface Temperature per IEC 505 / NEC 500

Protection Type

   0   8   8   8 -   0

   1   4   5   /   0   0   0   6 -   3

   6   0   1

   E  x -   P  o  s   t

  e  r   0   4   /   2   0   1   1 -   0

   1   D   E   +   G   B

  ·   P  r   i  n   t  e   d   i  n   G  e  r  m  a  n  y

  ·   S  u   b   j   e  c   t   t  o   d  e  s   i  g  n  c   h  a  n  g  e  s

UL/FM

Group II

ATEX/IEC

Explosion Protection –

Real Progress in Safety

Class/Zone Categorization Class/Division Categorization

EC Type Examination Certificate Additional Conditions

T1=450°C

T2=300°C

T3=200°C

T4=135°C

T5=100°CT6= 85°C

T1=450°C

T2=300°C

T3=200°C

T4=135°C

T5=100°CT6= 85°C

T2A=280°CT2B=260°CT2C=230°CT2D=215°CT3A=180°CT3B=165°C

T4A=120°CT3C=160°C