: Clarification Required on Ex Marking and Zone Suitability

Hello,


We have recently purchased your LED Explosion Proof Light, Model OHBF52 (60W). The product nameplate is marked as follows:


II 2 G Ex nR IIC T6 Gc
II 2 D Ex tb IIIC T80°C Db



We would like to confirm whether this model is certified for use in Zone 1 gas atmospheres or is limited to Zone 2 applications.


There appears to be some ambiguity between the “II 2 G” marking and the “Ex nR / EPL Gc” designation, which are typically associated with different protection levels.


Kindly review the attached nameplate and certificate and advise:


  1. The correct zone classification (Zone 1 or Zone 2) for gas installations.
  2. Confirmation of the valid certification details (ATEX/IECEx).
 

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