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ATEX certification for diesel engines

ATEX certification for diesel engines

ATEX certification for spark-ignited reciprocating internal combustion engines

ATEX certification for diesel engines according to IEC 60079-45:2025

Attention 

  • IEC 60079-45:2025 specifies the requirements for only spark ignited reciprocating internal combustion or RIC engines.

  • ConformEx has adopted IEC 60079-45 instead of UNI EN 1679-1:2011 for evaluation and certification.

  • General safety requirements and/or measures to remove the hazards and limit the risks on RIC engines for use in explosive atmospheres, are specified in EN 1834 series, including:  

    • EN 1834-1:2000 (Group II engines for use in flammable gas and vapour atmospheres);

    • EN 1834-2:2000 (Group I engines for use in underground workings susceptible to firedamp and/or combustible dust);

    • EN 1834-3:2000 (roup II engines for use in flammable dust atmospheres); 

  • ComformEx performs assessment and ATEX certification for spark ignited reciprocating internal combustion (RIC) engines, on the basis of EN 1834 series, plus requirements of IEC 60079-45:2025. 

Aim of publishing and scope of IEC 60079-45 

To enhance the safety of personnel by providing minimum requirements for

  • electrical ignition systems for spark-ignited reciprocating internal combustion engines, parts of which provide Equipment Protection Level (EPL) Gc;

  •  systems rated for normal operation with secondary voltages less than or equal to 60 kV;

  • only to the ignition systems or the individual ignition system components used on reciprocating internal combustion engines that are stationary when in operation and 

  • mobile machinery where the internal combustion engine can be potential source of ignition.

Main and common systems within the scope of IEC 60079-45 for ATEX certification

  • gas compressors;

  • electric power generators;

  • forklift trucks, and

  • pumps. 

Requirements of IEC 60079-45

  • minimum construction and test requirements for the safe operation of ignition systems and components for spark- ignited reciprocating internal combustion engines providing EPL Gc for equipment Group IIB+H2 , IIB or IIA;

  • manufacturer installation and maintenance recommendations, are the requirements which must be fulfilled prior to implement the requirements of IEC 60079-45.

Systems excluded from the scope of IEC 60079-45

  • Engine ignition systems that utilize a breaker point or magneto type ignition systems as these would not be suitable for use in a hazardous area;

  • Road vehicles; 

  • Low voltage parts and electrical installation that are not included in the ignition system, such as

    • various sensors and thermocouples;

    • throttle actuator(s);

    • fuel control valve(s);

    • human machine interface (HMI);

    • respective harness and wiring; and

    • all the other items that might belong to the integrated control system besides the ignition system. 

Relation with relevant Standards

IEC 60079-45, supplements and modifies the

  • general requirements of IEC 60079-0; and

  • the requirements of ISO/IEC 80079-41.

Note: in cases of confliction with IEC 60079-0 or ISO/IEC 80079-41, the requirement of IEC 60079-45, takes precedence. 

CHECKLIST FOR IEC 60079-45:2025  DOWNLOAD

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