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#216371 - 12/02/15 12:30 AM 3Grace Brand?
Potseal Offline
Member

Registered: 02/23/13
Posts: 197
Loc: Saskatchewan
In a previous discussion I mentioned troubleshooting and fixing issues in a rough looking parking lot that was wired from service to receptacles with aluminum. The main problem was that the neutral conductor feeding 3 pedestals popped loose creating voltages downstream ranging from about 50V to 240V. Of the receptacles affected two were GFCI. After correcting the lost neutral the GFCI's failed to reset. After talking to the owner I suggested replacing the GFCI receptacles with standard 15A commercial grade. Since I had never seen the insides of a GFCI receptacle I decided to take the two home and tear them apart. Today I finally found some time to get at it and while doing so I noticed the name "3 Grace" on the back. When I look at basic electrical components I usually expect to see one of the common names like T&B, Leviton, Hubbell, P&S, etc. I did a Google search and traced the product to a company in China called Zhejiang trimone electric science and technology co. Here's what it states on their website:

Quote:
Zhejiang trimone electric science and technology co., ltd. founded in 2001, is an export-oriented,high-tech enterprise under the protection of intellectual property rights. We manufacture GFCIS, SWITCHES, RECEPTACLES AND OTHER ELECTRIC ACCESSORIES. We now own 75000m2 of standard workshops, which lie in the high-tech economic development zone of pinghu in zhejiang, near to SHANGHAI AND HANGZHOU. We have passed internationnal ISO9001 quality system assessment and obtained multi-country safety agency approvals: 3C, international UL, CUL, CCEE AND GS.
We live and work by our motto “Good quality and satisfied customer will make us winners”, we strive to be honest and loyal to customers and we are motivated to work hard for a better tomorrow.


http://m.smkjwangxp.diytrade.com

I've never seen this brand name before and I was wondering if anyone else had knowledge of it?
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A malfunction at the junction

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#216372 - 12/02/15 12:32 AM Re: 3Grace Brand? [Re: Potseal]
Potseal Offline
Member

Registered: 02/23/13
Posts: 197
Loc: Saskatchewan
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A malfunction at the junction

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#216373 - 12/02/15 12:53 AM Re: 3Grace Brand? [Re: Potseal]
Potseal Offline
Member

Registered: 02/23/13
Posts: 197
Loc: Saskatchewan
Correction

Voltage readings posted above don't add-up and I can't remember the exact results so disregard.
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A malfunction at the junction

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#216375 - 12/02/15 09:24 AM Re: 3Grace Brand? [Re: Potseal]
gfretwell Offline

Member

Registered: 07/20/04
Posts: 9045
Loc: Estero,Fl,usa
I am not familiar with them but it might be interesting checking to see if the U/L certification for that particular product is valid.
_________________________
Greg Fretwell

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#216405 - 12/05/15 10:27 AM Re: 3Grace Brand? [Re: Potseal]
Lostazhell Offline
Member

Registered: 02/21/04
Posts: 1248
Loc: Bakersfield, CA (Originally Or...
Those 3Grace/General Prohtect GFCI's a junk! They've been floating around for quite a while and the UL listing is fake.


http://www.electrical-contractor.net/for...html#Post173224

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#216408 - 12/05/15 11:00 AM Re: 3Grace Brand? [Re: Potseal]
Potseal Offline
Member

Registered: 02/23/13
Posts: 197
Loc: Saskatchewan
Thanks!

I just did a Canada UL search on the company name and found a different receptacle made by the same company that has fake UL listings and is considered a potential hazard:

http://canada.ul.com/safetyalerts/ul-warns-of-potentially-hazardous-receptacle-release-13pn-05/


Edited by Potseal (12/05/15 11:01 AM)
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A malfunction at the junction

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#216410 - 12/05/15 01:24 PM Re: 3Grace Brand? [Re: Potseal]
wa2ise Offline
Member

Registered: 11/29/02
Posts: 771
Loc: Oradell NJ USA
Quote:
Hazard: The receptacle can accept plugs for either 120 or 240 volt products. A potential fire or shock hazard exists if the receptacle is not wired to match the voltage rating of the device plugged into the receptacle.

A major point of the differing plug and socket patterns is to prevent voltage mismatch mistakes. Most 120V loads will get really unhappy with 250V, and the results will not be good...

If the load is a switching power supply that can take 100 to 250V you'd get away with it, but more traditional loads will be severely damaged.

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#216413 - 12/05/15 07:30 PM Re: 3Grace Brand? [Re: Potseal]
gfretwell Offline

Member

Registered: 07/20/04
Posts: 9045
Loc: Estero,Fl,usa
Yikes. I haven't seen that receptacle pattern since stuff made before WWII (maybe WWI)
I think that is why NEMA came up with the standards we have today.

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Greg Fretwell

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#216422 - 12/09/15 05:57 PM Re: 3Grace Brand? [Re: Potseal]
HotLine1 Offline

Member

Registered: 04/03/02
Posts: 6804
Loc: Brick, NJ USA
Interesting with the 3Grace GFI....
I watched 7 cases, pack ten (10) each being destroyed today at a ECs shop today. They had them 'in stockroom' for a while. I had a conversation with the EC about this, he had his shop man lay them out, and run a forklift over them!

Yes, the cases did not look like the typical 'asian' cardboard!
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John

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#216423 - 12/09/15 05:58 PM Re: 3Grace Brand? [Re: Potseal]
HotLine1 Offline

Member

Registered: 04/03/02
Posts: 6804
Loc: Brick, NJ USA
I have to ask him if he has any of those multi-volt receptacles (LMAO)!!
_________________________
John

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