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New white paper on the approval of electrical and electronic equipment used in hazardous environments from TÜV SÜD

15 July 2014

CE marked electrical, electronic and mechanical equipment used in a normal environment is safe when used as directed. However, certain modern industrial environments pose an increased risk of fire and explosion due to the use of flammable gases, vapours or combustible dusts. 

Therefore, equipment used in these hazardous environments must be expressly designed to minimise such risks, and manufacturers of electrical, electronic, mechanical equipment and systems must ensure that their products meet the enhanced requirements of applicable regulations and standards.

In the European Union (EU), compliance with the essential requirements of EU Directive 94/9/EC, also known as the ATEX Directive, is required for equipment used in potentially explosive environments. At the same time, the voluntary IECEx Equipment Certification Scheme can facilitate acceptance of such equipment in other major jurisdictions around the world. Although similar in scope and intent, the ATEX Directive components and the IECEx Scheme encompass different requirements and utilise different assessment approaches, complicating the regulatory approval process for equipment manufacturers.

This white paper provides an overview of the EU’s ATEX Directive components and the IECEx Scheme, and answers a number of frequently asked questions about their application to electrical, electronic and mechanical equipment. The paper is intended for manufacturers and distributors of electrical, electronic and mechanical equipment used in potentially explosive atmospheres, as well as plant and facility owners and managers.

TÜV SÜD Product Service is a Notified Body (Notified Body number 0123) under the EU’s ATEX Directive. In addition, TÜV SÜD maintains state-of-the-art laboratories to test for explosion protection, dust and contamination control, environmental simulation, electromagnetic compatibility, mechanical and electrical safety.

TÜV SÜD specialists are also qualified to conduct highly accelerated life testing (HALT) and highly accelerated stress screening (HASS).

Represented in over 800 locations worldwide, TÜV SÜD holds accreditations in the EU, the Americas, the Middle East and Asia. By delivering world-class solutions to customers, TÜV SÜD adds tangible value to businesses, consumers and the environment.

Why download this white paper?

  • Learn about the technical requirements of the ATEX Directive and the IECEx Scheme.
  • Understand if you should seek equipment certification under both the ATEX Directive and the IECEx Certified Equipment Scheme.

To download the free white paper from please visit:

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