2rlp Posted June 6, 2012 Report Share Posted June 6, 2012 Hi, I have to enclose a V130 33 TRA22 & a 24 V SMPS unit in an Explosion Proof Enclosure. What are the precautions that I have to take? Should I use Zener barriers? If so should I use them only for DIs & DOs, or also for the Analog I/ps & O/ps? Pl help me on this issue Thanks Ron Quote Link to comment Share on other sites More sharing options...
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