Motor not rated for hazardous locations

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overkill94

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I'm doing an inspection in a class I div II location and the circulation pump in the skid doesn't have any listings or hazardous location designations so I told them to replace it. The manufacturer pointed to NEC 500.125(B). It does seem to be a squirrel cage induction motor without any brushes or sliding contacts, but are there any other characteristics I need to check for? Attached are pictures of the motor itself and its nameplate.
 

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overkill94 said:
... but are there any other characteristics I need to check for? ...
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In this case, no. Space heaters can sometimes be an issue.

In general, NEMA motors aren't listed at all except for Division 1; they aren't usually listed even for "ordinary locations".

BTW, if you are an inspector, "Division" is identified with an Arabic numeral ("1" or "2"); "Class" is identified with a Roman numeral ("I", "II", or "III"). No biggie, but if you're going to be in the business.
 
rbalex said:
In this case, no. Space heaters can sometimes be an issue.

In general, NEMA motors aren't listed at all except for Division 1; they aren't usually listed even for "ordinary locations".

BTW, if you are an inspector, "Division" is identified with an Arabic numeral ("1" or "2"); "Class" is identified with a Roman numeral ("I", "II", or "III"). No biggie, but if you're going to be in the business.
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Well, I'm a third-party inspector so at least I'm not making the government look bad :)

Thanks for the info, I'm getting a crash course since all the motors I've seen in the past were UL listed for class I div 2 and I didn't realize there were exceptions.
 
overkill94 said:
Well, I'm a third-party inspector so at least I'm not making the government look bad :)

Thanks for the info, I'm getting a crash course since all the motors I've seen in the past were UL listed for class I div 2 and I didn't realize there were exceptions.
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Love to see a photo of a UL listed Class I, Division 2 motor. CSA maybe. Make sure the logo is one of these that indicates "U.S." certification.

EDIT ADD: For that really professional look, "Class" and "Division" are capitalized. (They may be abbreviated, "Cl" or Div"."):)
 
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