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Low Voltage Shade Motors UL question

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James Geiger

Member
Location
Los Angeles
We install a lot of Low Votage 24v 1amp shade motors. The isolated power supplies have UL stickers on them but the Shade motors do not. The 120v motors have UL. We have an inspector who wants to see a UL sticker on the LV motor or he won't allow occupancy. The Manufacturer who say they have CE and but not UL because it is not needed because it is low energy. Thoughts??
 

Little Bill

Moderator
Staff member
Location
Tennessee NEC:2017
Occupation
Semi-Retired Electrician
Although this site is for:
Contractors, Electricians, Engineers, Inspectors, Instructors, Other electrically related individuals

I am allowing this thread since the OP is only asking for an opinion and not a "how to" question.
Please only reply in respect to the question.
 

rbalex

Moderator
Staff member
Location
Mission Viejo, CA
Occupation
Professional Electrical Engineer
UL doesn't list motors does it?
The NEMA Motor Group resisted listing motors for a long time. There was a time the only listed motor was explosionproof. (UL Categorty Code PTDR). Recently, a few motor manufactures (non-NEMA Motor Group) have begun having some "Ordinary Location" motors listed( UL Category Code PRGY). They have even begun listing motors specifically for Division 2. (UL Category Code PTHE) There is a marketing perception that the various state and federal OSHAs require listing where such products can be listed.

I see the links don't work properly. Use this page and enter the Category Codes.
 

rbalex

Moderator
Staff member
Location
Mission Viejo, CA
Occupation
Professional Electrical Engineer
Good information to know. Other than explosion proof I don't know of any UL listing requirements. Is there any?
Well, except for firepump motors, not specifically in the NEC. As I mentioned, the various OSHAs may require it. In addition, many motors are "Recognized Components" (backward UR)
 

James Geiger

Member
Location
Los Angeles
Good information to know. Other than explosion proof I don't know of any UL listing requirements. Is there any?
It can be problematic when an inspector wants to see something that doesn't exist on Low Voltage Shade motors. I could get 120v motors with listing but the wiring and circuit is for class 2. Our company put in almost 4 thousand last year, in skyscrapers and houses with out code issue.
 

ActionDave

Chief Moderator
Staff member
Location
Durango, CO, 10 h 20 min from the winged horses.
Occupation
Licensed Electrician
It can be problematic when an inspector wants to see something that doesn't exist on Low Voltage Shade motors. I could get 120v motors with listing but the wiring and circuit is for class 2. Our company put in almost 4 thousand last year, in skyscrapers and houses with out code issue.

Time to talk to the inspectors boss.
 

rbalex

Moderator
Staff member
Location
Mission Viejo, CA
Occupation
Professional Electrical Engineer
Using the PRGY Category Code and the UL certification page I linked to, it's not too difficult to show the desired product doesn't exist.
 

iwire

Moderator
Staff member
Location
Massachusetts
We install a lot of Low Votage 24v 1amp shade motors. The isolated power supplies have UL stickers on them but the Shade motors do not. The 120v motors have UL. We have an inspector who wants to see a UL sticker on the LV motor or he won't allow occupancy. The Manufacturer who say they have CE and but not UL because it is not needed because it is low energy. Thoughts??

What code section is the inspector citing to require this?

I agree with Dave, time to see the inspectors boss.
 
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