General requirements
8.3 ATEX / HazLoc
8.3.1 Standards, criteria
X20/X67 modules are permitted for operation in zone 2 in an temperature range between 0 and 60°C. Nevertheless,
the certification-specific requirements and regulations must always be taken into account as well (possible reduction
in upper temperature limit to reduce power, derating, etc.). These can be found on the information sheet, on the
B&R website at www.br-automation.com, in the technical data and data sheets / user's manuals.
ATEX
Characteristics Description
Device group II All areas except mining
Device category 3 Explosive gases, normal degree of safety
Area of use G Gas, zone 2
Ignition protection types nA Non-sparking
Equipment protection level
(EPL)
Gc Use in areas where there is risk of gas explosions but no risk of ignition during normal operation
Table 13: ATEX - Standards, criteria
Explosion protection
Standard Description
EN 60079-0 Electronic equipment for explosive atmospheres - General requirements
EN 60079-15 Representative standard for explosive gas atmospheres (X20/X67 for zone 2)
Table 14: ATEX - Explosion protection
Hazardous locations
Characteristics Description
Class I Areas where there may be sufficient amounts of combustible gases or fumes in the air to result in an explosive
or flammable mixture.
Division 2 Areas where there are normally no explosive gases, but which could be subject to explosive gases under abnormal
conditions.
Groups ABCD Gas groups (A: Acetylene, B: Hydrogen, C: Ethylene, D: Propane)
Temperature class T5 Maximum permissible surface temperature 100°C.
Table 15: HazLoc - Standards, criteria
Explosion protection
Standard Description
CSA Std C22.2 No. 0-M1991 General requirements - Canadian electrical code part II
CSA Std C22.2 No. 142-M1987 Process control equipment
CSA Std C22.2 No. 213-M1987 Non-incendive electrical equipment for use in Class I, Division 2 hazardous locations
UL Std No. 916:2007 Energy management equipment
ANSI/ISA 12.12.01:2007 Nonincendive Electrical Equipment for Use in Class I and II, Division 2 and Class III, Division 1 and 2 Hazardous
(Classified) Locations
Table 16: HazLoc - Explosion protection
8.4 Condensation, corrosive gas - X20c coated modules
Corrosive gas
Standard Description
EN 60068-2-60 Environmental testing - part 2: Tests, Test Ke: Flowing mixed gas corrosion test, effectiveness in stopping con-
densation
BMW GS 95011-4 Electronic component in car, condensation test and climate test
Table 17: Condensation, corrosive gas - X20c coated modules
Installation / EMC guide 1.36 (April 2021) 41
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