Example of a marking in accordance with RL 94/9/EG and EN 60079-0 ff
Gas/vapor – Electrical equipment


  1. Conformity mark
  2. Identification number of the notified body which – where required – certified the QA system or examined the products
  3. Ex mark
  4. Equipment group II - other areas (non-mining)
  5. Equipment category 2 - gases/vapours G, suitable for Zones 1 and 2
  6. Explosion Protection in conformance to IEC/EN 60079-0 ff
  7. Type of protection: flameproof enclosure and increased safety
  8. Explosion group IIC (non-mining, Group C)
  9. Temperature class T6
  10. Equipment protection level Gb (high protection level)
  11. Certifying body’s symbol
  12. Device certified in 2000 for the first time
  13. ATEX generation
  14. Certifying body’s identification number
  15. If present: "X" observe special conditions: e.g. "the light module must be installed in a way that ensures its mechanical protection from impact energy in accordance with EN 60079-0""U" Ex component cannot be used with a partial certificate alone. CE conformity is certified when installed into a complete piece of operating equipment.
  16. Ambient temperature

Example of a marking in accordance with RL 94/9/EG and EN 60079-0 ff
Dust – Electrical equipment

  1. Conformity mark
  2. Identification number of the notified body which – where required – certified the QA system or examined the products
  3. Ex mark
  4. Equipment group II - other areas (non-mining)
  5. Equipment category 2 - dusts D, suitable for Zones 21 and 22
  6. Explosion Protection in conformance to IEC/EN 60079-0 ff
  7. Type of protection: protection by enclosure
  8. Explosion group IIIC (conductive types of dust)
  9. Max. surface temperature 80°C
  10. Equipment protection level Db (high protection level)
  11. IP protection
  12. Certifying body’s symbol
  13. Device certified in 2000 for the first time
  14. ATEX generation
  15. Certifying body’s identification number
  16. If present: "X" observe special conditions"U" Ex component cannot be used with a partial certificate alone. CE conformity is certified when installed into a complete piece of operating equipment
  17. Ambient temperature