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The technical regulation TR CU 012/2011 provides the safety requirements for electrical and non-electrical equipment while operating in potentially explosive atmospheres for the protection of life, health, property, and the environment.

The explosion-proof equipment intended for use in potentially explosive atmospheres must be designed and manufactured in accordance with the TR CU 012/2011, in such a way as to ensure that an explosion or a fire resulting from the use of the appliance can be reliably prevented under the intended conditions.

The requirements of the technical regulation TR CU 012/2011 have been harmonized with the requirements of the ATEX Directive 2014/34/EU, but they are not identical.

The compliance with these safety requirements is compulsory for the placing of goods on the market of Russia and the Eurasian Customs Union.

Adopted on October 18, 2011
Entered into force on February 15, 2013

As of March 15, 2015, the technical regulation TR CU 012/2011 will definitively override the national standards of technical regulation in the area of explosion protection such as GOST or Russian TR.

Application area of TR CU 012/2011

The TR CU 012/2011 applies to all explosion-proof electrical and non-electrical equipment and machinery, including their EX-protection components intended for use in potentially explosive atmospheres. The conformity assessment with the technical regulations is provided in the form of an EAC EX certification. For more information on the certification of EX equipment for operation in explosive atmospheres according to TR CU 012/2011 you can find here.

The certificate is issued for five years. The certificate can only be applied for by a person resident in the Eurasian Economic Union. Schmidt & Schmidt has a branch office in Russia and therefore has the right to act as an authorized representative in the EAC conformity assessment process for companies from Germany and the EU, in accordance with the legislation of the Economic Union.

The production audit is compulsory for the certification of serial production.

According to TR CU 010/2011 no conformity assessment needed for:

  • medical engineering
  • devices which can explode due to presence of explosive substabces, or unstable chemical connections
  • domestic appliances
  • personal protective equipment
  • sea and inland ship, mobile offshore platforms and oil platforms
  • air, road, rail or watercraft vehicles
  • military equipment
  • nuclear weapons and nuclear research facilities

It should be noted that the products, regardless of whether or not they are subject to the conformity assessment according to the technical regulation TR CU 012/2011, might also comply with other directives, such as TR CU 010/2011 On safety of machinery and equipment, TR CU 016/2011 On safety of devices operating on the gaseous fuel and TR CU 020/2011 On electromagnetic compatibility of technical devices.

EX marking

TR CU 012/2011 On safety of the equipment for operation in explosive atmospheres

The products which have conformity with the requirements of TR ZU 012/2011 have been confirmed shall be marked with the EAC marking of the Customs Union.

In addition, products for use in potentially explosive atmospheres must be marked with the EX marking.


TR CU 012/2011 On safety of the equipment for operation in explosive atmospheres in the Russian language

Offer: EX certificate according to TR CU 012/2011 for serial production with a validity of up to five years from 3000 !



We would be pleased to advise you professionally and competently with the EAC Certification or EAC Declaration. We check free of charge whether your products are subject to the requirements for the EAC Certification according to TR CU 012/2011 On safety of the equipment for operation in explosive atmospheres.

In our video, we explain what an EAC Certification is and how and where to certify or declare your products for the introduction on the EAEU market.

The EAC Certification and the EAC Declaration are complex procedures that attest your products the conformity with the technical regulations of the EAEU and require a lot of know-how. Schmidt & Schmidt will support you with the certification of your products for the EAEU market.

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