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that is an "ex" rating
"ee" requires considerably less than explosion proof, but EE requires enclosed contacts, motors and any where else there might be a spark. and a bunch of other stuff.
What type you need depends on the atmosphere in it's operational area, and is explained (just as clearly as mud) in the US regulation CFR 1910.178.
  • Posted 18 Nov 2008 07:49
  • By edward_t
  • joined 5 Mar'08 - 2,334 messages
  • South Carolina, United States
"it's not rocket surgery"

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