Alright.
This installation with a proper receptacles has been the case for a long time before the NM cables were made with the EGC.
Grounding Receptacle Yoke to Neutral
- Thread starter mbrooke
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This installation with a proper receptacles has been the case for a long time before the NM cables were made with the EGC.
There should be a UL number in the documentation you can look up.
Why buy from CRC? Buy from an American company.
mbrooke
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mbrooke
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Greentagger
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- Master Electrician, Electrical Inspector
I tried to let the code articles and sections explain themselves. But I do agree, as others have pointed out, I wonder how it got listed like this as far as terminal identification . Something is definitely fishy about this. Please educate me. Thanks.
You don't just go to UL with a product to get certified, they say, "Yeah, we certify it" and you can slap the UL logo on your product. There's a paper trail somewhere, and that starts with a UL certification number.
Dsg319
Senior Member
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Would that essentially make a neutral to case connection in the recep box? If so what about objectionable current? I know older ranges and stuff were 3 wire but what’s this used for?
D
Dell3c
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NFPA 70 Article 250, Section 140 Exception, last sentence in exception "if all the following conditions are met.
mbrooke
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mbrooke
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D
Dell3c
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I thought looking little strange also, the terminal identification. But looking @ front of device, it's denoting "duel voltage rating" 125/250V w/50 ampere rating.
mbrooke
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That dual rating simply means two hots and a neutral, no ground. Correct for a NEMA 10-50r. As for the rest, it raises doubts.
D
Dell3c
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I'm going step aside now.. but.. Denote the silver terminal screw on the back. Straight 250V rated, both terminals generally same in pigment color. Believing that's what the "Green Tagger" is referencing, in his posting. Have safe day.
mbrooke
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K8MHZ
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As far as I can tell, a NEMA 10-50R is a non grounding configuration. Which leads me to believe the receptacle is bogus using bogus UL info.
mbrooke
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yup, thats my train of thought. The silver screw should be on the noodle and both hots ought to be gold. Anything else is bogus.
As Dell3c points out above it was the standard range receptacle for many years. During that time the neutral was allowed to serve as grounding for ranges. From 250.140 & 250.142 it appears this would still be allowed as a replacement.
D
Dell3c
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I've got to ask (not trying to be nosey).. Did you purchase this device, or how did you obtain this photo (?)
kwired
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and probably doesn't have a valid listing. 10-50 is 50 amp 125/250 three wire non grounding designation, neutral is not bonded to anything but the neutral terminal of the device. Is/was permitted for connection of ranges where the appliance is allowed to be bonded to the neutral conductor.
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