barrydmi
Member
- Location
- Washington
Recently an inspector required the 120 volt circuit to a intrinsically safe relay, to be GFCI protected. He said because the relay isn't UL listed. Can anyone explain this resoning. Thanks for the help.
Intrinsically safe relays
- Thread starter barrydmi
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- Bremerton, Washington
Re: Intrinsically safe relays
Possibly may be a requirement in the UL listing for IS systems, there is a UL standard 1394 or similar. Use of a GFCI is allowed in UL 508 Industrial Motor Control Standard for non listed equipment.
Possibly may be a requirement in the UL listing for IS systems, there is a UL standard 1394 or similar. Use of a GFCI is allowed in UL 508 Industrial Motor Control Standard for non listed equipment.
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