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ATEX and CE marking

ATEX and CE marking

(OP)
Our contract requires all Electrical and Instrument items to have ATEX certification.

Question 1: If the Electrical and Instrument items are Procured with CE marking, can we conclude that the items are ATEX certified?

Question 2: If an electrical item, say a switch gear or Junction box or a Motor inside an actuator (of an Motor Operated Valve) is inside an ATEX certified enclosure, does it mean we meet the intent of the contract?

Qiestion 3: For an instrument, if the supplier catalogue specifies a given model is ATEX certified, is it proof enough that the model selected and supplied is ATEX certified (Only the alloy of enclosure has changed, for example the enclosure was orginally made of SS 304, and our project need 316, does this change warrant re certification?)

RE: ATEX and CE marking

IMO -
ATEX compliant equipment must be in accordance with the ATEX directive (make sure you read it and the guidance notes).  Equipment complying with ATEX is specifically "placed on the  market" for use where "potentially explosive atmospheres" may exist.

Question 1, NO.  CE marking is NOT the same as ATEX.  If you need ATEX compliant equipment then the equipment must be ATEX marked and certified.

Question 2, The equipment must be ATEX compliant.  This can be achieved by using components that are ATEX compliant, OR by the use of general components so combined that you can issue your own certification.

Question 3, It is for the component supplier to issue the necessary certification for ATEX compliance.

RE: ATEX and CE marking

Be careful with CE marking, CE marking can be applied for a number of directives and you need to ensure that the mark is for the directive you require.

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