{"id":1424,"date":"2026-03-04T15:39:34","date_gmt":"2026-03-04T14:39:34","guid":{"rendered":"http:\/\/www.gostrussia.com\/toen\/?page_id=1424"},"modified":"2026-03-05T12:20:24","modified_gmt":"2026-03-05T11:20:24","slug":"ex-eac-certificate","status":"publish","type":"page","link":"https:\/\/www.gostrussia.com\/en\/eac-certifications\/ex-eac-certificate\/","title":{"rendered":"EX EAC certificate for hazardous atmospheres TR CU 012\/2011, Atex for Russia"},"content":{"rendered":"

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EAC EX Certificate for Hazardous Atmospheres \u2013 Last Update: March 2026<\/em><\/p>\n

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\nEnsuring safety in potentially explosive environments is one of the most critical challenges in modern industrial engineering. The legal and technical foundation for equipment operating within the Eurasian Customs Union (Russia, Belarus, Kazakhstan, Armenia, and Kyrgyzstan) is the Technical Regulation 012\/2011 (TR CU 012\/2011)<\/strong>. This regulation, in force since 2012, dictates the mandatory safety requirements for all equipment and protection systems intended for use in explosive atmospheres.<\/p>\n

The resulting EAC EX Certificate<\/strong> serves as the official proof of conformity, acting as the Eurasian counterpart to the European ATEX Directive. It certifies that both electrical and non-electrical equipment meet stringent safety standards designed to eliminate potential ignition sources in the presence of flammable gases, vapors, or dust.
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\nModern explosion protection is built upon a foundation of continuous technological evolution. The TR CU 012\/2011 certification integrates international standards set by the International Electrotechnical Commission (IEC)<\/strong>, adapting them to the specific GOST requirements of the Customs Union. This system utilizes globally recognized protection methods such as flameproof enclosures (Ex d), intrinsic safety (Ex i), and pressurized equipment (Ex p).<\/p>\n

An EAC EX certificate is far more than a simple regulatory hurdle; it is an essential guarantee for plant integrity and personnel safety. It confirms that the certified equipment maintains its protective function even under extreme conditions, thereby mitigating the risk of catastrophic accidents in industrial facilities.
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How to Read the EAC EX Marking (Practical Example)<\/h3>\n

Russian marking follows the international IEC<\/a> standard. Example:<\/p>\n

1Ex d IIC T4 Gb X<\/span><\/p>\n\n\n\n\n\n\n\n\n\n
1<\/strong><\/td>\nProtection Level:<\/strong> 0 (Very High), 1 (High), 2 (Normal).<\/td>\n<\/tr>\n
Ex<\/strong><\/td>\nExplosion-proof Symbol:<\/strong> Compliance with EAC standards.<\/td>\n<\/tr>\n
d<\/strong><\/td>\nProtection Type:<\/strong> “Flameproof enclosure”.<\/td>\n<\/tr>\n
IIC<\/strong><\/td>\nGas Group:<\/strong> Suitable for Hydrogen and Acetylene.<\/td>\n<\/tr>\n
T4<\/strong><\/td>\nTemperature Class:<\/strong> Max surface temperature 135\u00b0C.<\/td>\n<\/tr>\n
Gb<\/strong><\/td>\nEPL:<\/strong> Equipment Protection Level for gaseous atmospheres.<\/td>\n<\/tr>\n
X<\/strong><\/td>\nSpecial Conditions:<\/strong> Requires specific attention as detailed in the manual.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Classification of Zones and Protection Methods<\/h3>\n\n\n\n\n\n\n\n
Explosive Atmosphere<\/th>\nGas \/ Vapors<\/th>\nCombustible Dusts<\/th>\n<\/tr>\n<\/thead>\n
Constant \/ Long duration<\/strong><\/td>\nZone 0<\/td>\nZone 20<\/td>\n<\/tr>\n
Occasional (normal operation)<\/strong><\/td>\nZone 1<\/td>\nZone 21<\/td>\n<\/tr>\n
Rare \/ Short duration<\/strong><\/td>\nZone 2<\/td>\nZone 22<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
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  • Ex d:<\/strong> Flameproof enclosure<\/li>\n
  • Ex e:<\/strong> Increased safety<\/li>\n
  • Ex i:<\/strong> Intrinsic safety (ia, ib, ic)<\/li>\n
  • Ex p:<\/strong> Pressurization<\/li>\n
  • Ex m:<\/strong> Encapsulation<\/li>\n
  • Ex h:<\/strong> Protection for mechanical equipment<\/li>\n<\/ul>\n

    [\/vc_column_text][vc_custom_heading text=”Frequently Asked Questions (FAQ)” font_container=”tag:h3|text_align:left” use_theme_fonts=”yes”][vc_tta_accordion style=”flat” shape=”square” color=”white” spacing=”5″ c_icon=”chevron” active_section=”1″ no_fill=”true”][vc_tta_section title=”Which products fall under the scope of TR CU 012\/2011?” tab_id=”faq-1″][vc_column_text]
    \nThe regulation covers a wide array of equipment, including both electrical devices and mechanical components used in hazardous zones. It is important to note that, unlike the European ATEX directive, devices intended for medical use are explicitly excluded from the scope of the EAC TR CU 012\/2011 regulation.
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    \nProducts that have successfully passed the conformity assessment must bear the EAC mark<\/strong> along with the specific Eurasian Ex-symbol<\/strong>. This marking must be clearly visible on the product\u2019s nameplate and within the technical documentation, signaling that the equipment is safe for use in its designated explosive atmosphere.
    \n[\/vc_column_text][\/vc_tta_section][vc_tta_section title=”Is a factory inspection required for certification?” tab_id=”faq-3″][vc_column_text]
    \nFor serial production certification (valid for up to 5 years), a factory inspection by accredited experts from the Customs Union is mandatory. This inspection ensures that the manufacturing processes are capable of maintaining consistent quality and safety standards for all certified equipment.
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    \nThe system offers flexibility through different certification models: certificates can be issued for a single shipment<\/strong> (batch-based), tied to a specific contract, or for serial production<\/strong> with a maximum validity of 5 years. Serial certificates require annual surveillance audits to maintain their validity.
    \n[\/vc_column_text][\/vc_tta_section][vc_tta_section title=”Must all system components be individually EAC EX certified?” tab_id=”1769594403398-b28e3c1f-4b1b”][vc_column_text css=””]Yes, this is a fundamental requirement. To obtain EAC EX certification for a complete system or assembly, all safety-critical components identified in the risk analysis<\/strong> must already hold their own individual EAC EX certificates. If a component is not previously certified, it must undergo full testing as part of the system evaluation, which can significantly increase the complexity and duration of the certification process.[\/vc_column_text][\/vc_tta_section][\/vc_tta_accordion][vc_empty_space height=”40px”][vc_custom_heading text=”Technical Comparison: ATEX vs. EAC EX” font_container=”tag:h3|text_align:left” use_theme_fonts=”yes”][vc_column_text]<\/p>\n\n\n\n\n\n\n\n\n
    Feature<\/th>\nATEX (EU Directive 2014\/34\/EU)<\/th>\nEAC EX (TR CU 012\/2011)<\/th>\n<\/tr>\n<\/thead>\n
    Jurisdiction<\/strong><\/td>\nEuropean Union and EFTA member states.<\/td>\nRussia, Belarus, Kazakhstan, Armenia, and Kyrgyzstan.<\/td>\n<\/tr>\n
    Marking<\/strong><\/td>\nCE Mark + Hexagonal Ex symbol.<\/td>\nEAC Mark + Eurasian Ex symbol.<\/td>\n<\/tr>\n
    Language<\/strong><\/td>\nOfficial languages of the destination country.<\/td>\nMandatory Russian translation for all technical documents.<\/td>\n<\/tr>\n
    Medical Devices<\/strong><\/td>\nMay fall under ATEX scope.<\/td>\nExplicitly excluded from TR CU 012\/2011.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

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    \nProcessing Time<\/strong>
    \nThe standard timeline for issuing the certificate ranges from two to eight weeks following the submission of all required technical files.
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    \nPersonalized Quote<\/strong>
    \nCosts are calculated based on product complexity, the number of variants, protection methods, and required laboratory testing.
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    \nRegional Validity<\/strong>
    \nCertificates are valid across all member states of the Eurasian Customs Union without the need for additional national approvals.
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    [\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column][vc_empty_space height=”40px”][vc_custom_heading icon=”stm-email” text=”Request an Expert Consultation” use_theme_fonts=”yes” el_class=”base_font_color”][vc_column_text]
    \nDo you have specific questions regarding the classification of your equipment or require assistance in preparing the mandatory Russian documentation? Our team is available to provide a detailed analysis of your project.
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