class 1 div 1

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chetm

Member
If I have a handheld voice recorder that is rated class 1 div 1 IS

Would it automatically be also rated for class 3?

And if so where would I find something that might say that?
 
rbalex

rbalex

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The problem is there is no single NEC rule applies to your question; however, the general rule is that equipment must be labeled for each Class, Division, Zone, Group, etc. See Section 500.8(A) and (B). There are some ?Special Allowances? listed in 500.8(B) (6). There are also provisions for Division 1 marked equipment in Division 2 and ?Division? rated equipment in ?Zones.? But there are no provisions for equipment marked for one ?Class? to be automatically used in another.

The IS marking should however make the device permissible in Class III assuming it has a "T" rating less than that specified in 503.5
 
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Milo Minderbinder

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503.5 might cover your equipment, though if it's handheld it's not technically "installed" as that section implies. Still, I'd imagine it falls within acceptable surface temp's.
 
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chetm

Member
Thanks for the reply, I sent a e-mail to the manufaturer just to cover myself.
And their reply was, that no it is not rated for class 3. Even tho it does fall
within the safe areas. So in a strict enforcement area, if it's not on the tag, it doesn't get used.

Thanks again
 
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