It has been possible to apply the new standards as early as December 1, 2016. The transition period ended on October 31, 2019. This is the date as of which the previous standards have lost their so-called “presumption of conformity”.
This means that full compliance is no longer given so that conformity with the explosion protection directive 2014/34/EU (ATEX) could be presumed.
| EN 13463-1:2009 | Basic method and requirements | ISO 80079-36≥:2016 |
| EN 13463-5:2011 | Protection by constructional safety “c” | ISO 80079-37:2016 |
| EN 13463-6:2005 | Protection by control of ignition source “b” | ISO 80079-37:2016 |
| EN 13463-8:2003 | Protection by liquid immersion “k” | ISO 80079-37:2016 |
Permissible marking up to October 31, 2019:
CE Ex II 3G c IIB T4
Mandatory marking as of November 1, 2019:
CE Ex II 3G Ex h IIB T4 Gc
| A | B | C | D | E | F | 1 | 2 | 3 | 4 | 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| CE | Ex | II | 3 | G | Ex | h | IIB | T4 | Gc |
| Marking in accordance with ATEX 2014/34/EU | Character(s) / Symbol | Meaning | |
|---|---|---|---|
| A | CE mark | CE | Communautés Européennes / European Union |
| B | No entry as type testing is not required | ||
| C | Special mark for explosion protection | Ex | Marking relevant to explosion prevention |
| D | Device group | II | Used to mark equipment suitable for use in potentially explosive atmospheres in any field (with the exception of mining). |
| E | Device category | 3 | Used to mark equipment subject to device group II with a normal degree of safety.* |
| F | Potentially explosive atmosphere | G | Suitable for use in areas where potentially explosive mixtures of gases, vapors, mists or air exist.* |
| Marking in accordance with ISO 80079-36:2016 | Character(s) / Symbol | Meaning | |
|---|---|---|---|
| 1 | Explosion protection marking | Ex | In accordance with ISO 80079-36:2016, Chp. 11.2 c) |
| 2 | Type of protection | h | Non-electrical equipment for use in potentially explosive atmospheres |
| 3 | Explosion hazard group | IIB | Suitable for use in conjunction with gases subject to group IIB (flammable gases of high or average minimum ignition energy) |
| 4 | Surface temperature | T4 | Temperature class |
| 5 | Equipment Protection Level (EPL) | Gc | Equipment with enhanced level of protection for use in potentially explosive atmospheres where no risk of ignition exists during normal operation. |
Permissible marking up to October 31, 2019:
CE Ex II 2G c IIB T4
Mandatory marking as of November 1, 2019:
CE Ex II 2G Ex h IIB T4 Gb
| A | B | C | D | E | F | 1 | 2 | 3 | 4 | 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| CE | Ex | II | 2 | G | Ex | h | IIB | T4 | Gb |
| Kennzeichnung nach ATEX 2014/34/EU | Zeichen / Symbol | Bedeutung | |
|---|---|---|---|
| A | CE mark | CE | Communautés Européennes / European Union |
| B | No entry as type testing is not required | ||
| C | Special mark for explosion protection | Ex | Marking relevant to explosion prevention |
| D | Device group | II | Used to mark equipment suitable for use in potentially explosive atmospheres in any field (with the exception of mining). |
| E | Device category | 2 | Used to mark equipment subject to device group II with a high degree of safety.* |
| F | Potentially explosive atmosphere | G | Suitable for use in areas where potentially explosive mixtures of gases, vapors, mists or air exist.* |
| Marking in accordance with ISO 80079-36:2016 | Character(s) / Symbol | Meaning | |
|---|---|---|---|
| 1 | Explosion protection marking | Ex | In accordance with ISO 80079-36:2016, Chp. 11.2 c) |
| 2 | Explosion hazard group | h | Non-electrical equipment for use in potentially explosive atmospheres |
| 3 | Explosion hazard group | IIB | Suitable for use in conjunction with gases subject to group IIB (flammable gases of high or average minimum ignition energy) |
| 4 | Surface temperature | T4 | Temperature class |
| 5 | Equipment Protection Level (EPL) | Gb | Equipment with high level of protection for use in potentially explosive atmospheres where no risk of ignition exists during normal operation or in the case of foreseeable faults or malfunctions. |
Permissible marking up to October 31, 2019:
CE Ex II 1GD c IIB T4 130°C
Mandatory marking as of November 1, 2019:
CE Ex II 1G EX h IIB T4 Ga
CE Ex II 1D Ex h IIIC T130°C Da
| A | B | C | D | E | F | 1 | 2 | 3 | 4 | 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| CE | 0123 | Ex | II | 1 | G | Ex | h | IIB | T4 | Ga |
| CE | 0123 | Ex | II | 1 | D | Ex | h | IIIC | T130°C | Da |
| Marking in accordance with ISO 80079-36:2016 | Character(s) / Symbol | Meaning | |
|---|---|---|---|
| A | CE-markt | CE | Communautés Européennes / European Union |
| B | Identification no. of inspection body (notified body) | 0123 | TÜV SÜD Product Service GmbH, 80339 München |
| C | Special mark for explosion protection | Ex | Marking relevant to explosion prevention |
| D | Device group | II | Used to mark equipment suitable for use in potentially explosive atmospheres in any field (with the exception of mining). |
| E | Device category | 1 | Used to mark equipment subject to device group II with a very high degree of safety. */** |
| F | Potentially explosive atmosphere | G | Suitable for use in areas where potentially explosive mixtures of gases, vapors, mists or air exist. * |
| F | Potentially explosive atmosphere | D | Suitable for use in areas where dust can result in the formation of potentially explosive atmospheres. ** |
| Marking in accordance with ISO 80079-36:2016 | Character(s) / Symbol | Meaning | |
|---|---|---|---|
| 1 | Explosion protection marking | Ex | In accordance with ISO 80079-36:2016, Chp. 11.2 c) |
| 2 | Type of protection | h | Non-electrical equipment for use in potentially explosive atmospheres |
| 3 | Explosion hazard group | IIB | Suitable for use in conjunction with gases subject to group IIB (flammable gases of high or average minimum ignition energy) |
| 3 | Explosion hazard group | IIIC | Suitable for use in conjunction with dust category IIIC (combustible particulates electrically non-conductive dusts and electrically conductive dusts) |
| 4 | Surface temperature | T4 | Temperature class |
| 4 | Surface temperature | T130°C | Measured max. surface temperature |
| 5 | Equipment Protection Level (EPL) | Ga | Equipment with a very high level of protection for use in potentially explosive atmospheres where no risk of ignition exists during normal operation or in the case of foreseeable or rare faults or malfunctions. |
| 5 | Equipment Protection Level (EPL) | Da | Equipment with a very high level of protection for use in potentially explosive atmospheres where no risk of ignition exists during normal operation or in the case of foreseeable or rare faults or malfunctions. |
Note: The letter “h” is used to confirm that the mechanical device is suitable for use in potentially explosive atmospheres as a rule. As far as the explosion protection marking is concerned, the “h” takes the place where previously the ignition protection type “c” (protection by constructional safety) was indicated. The criteria for satisfying the requirements for this and other types of ignition protection have been adopted by the ISO 80079 series of standards, so that the TWK series from URACA continues to meet the requirements accordingly.
Insofar as the equipment cannot be operated in the normal ambient temperature range (as per EN ISO 80079-36:2016) from -20 °C to +40 °C, the permissible ambient temperature range has to be added to the marking accordingly.
Example: + 5 °C ≤ Ta ≤ + 70 °C
Alternatively, the symbol “X” can be used to indicate special conditions of use that need to be followed.
Declarations of conformity in accordance with ATEX 2014/34/EU include the explosion protection marking(s) for the corresponding equipment, as well as the relevant harmonized standards that form the basis for the design, manufacture and testing of the equipment. Declarations of conformity must include the new explosion protection marking(s) by November 1, 2019 without making reference to the old standards.
URACA brings many years of expertise to the table in the area of explosion-proof, high-pressure solutions and pump systems suitable for a wide variety of applications. Apart from ATEX-compliant products from URACA, explosion-proof solutions with numerous further certifications are in use around the world.
We are happy to address any questions you may have about explosion protection or to provide you with information about realizing solutions with URACA. Our team is looking forward to support you; simply give us a call.
