I found this link www.quick220.com while surfing around on an unamed other electrical forum site (Noxx knows which one, wink wink). Check it out and let me know what you think. Personally, I could see it being used as a temp on a service van in a pinch but nothing more. Manufacturer lists uses such as computer servers, air compressors, welders, clothes dryers, the list goes on
110 to 220 Volt Conversion Box?
- Thread starter Jljohnson
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- Lockport, IL
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- Semi-Retired Electrical Engineer
We have discussed this type of product before, perhaps a year or more ago. I do not recall if there was a concensus in favor or against the use of this item. For my part, I don't like it, but I can't give you a code article that it violates.
How it works is that you plug one 120 volt cord into a receptacle powered by Phase A, and another 120 volt cord into a receptacle powered by Phase B. You then have a source of 240 volts, that being the Phase A to Phase B voltage.
If you plug both cords into receptacles powered by the same phase, you get no voltage output at all. If you start with the cords plugged into the right receptacles, then unplug one of the cords, I don't know what you get. The manufacturer states that internal checking circuits will disable the device, if either of these things happen. So perhaps it is not unsafe. But I still don't like it. I would much rather see a step up transformer being used to raise a single phase 120V to a single phase 240V.
How it works is that you plug one 120 volt cord into a receptacle powered by Phase A, and another 120 volt cord into a receptacle powered by Phase B. You then have a source of 240 volts, that being the Phase A to Phase B voltage.
If you plug both cords into receptacles powered by the same phase, you get no voltage output at all. If you start with the cords plugged into the right receptacles, then unplug one of the cords, I don't know what you get. The manufacturer states that internal checking circuits will disable the device, if either of these things happen. So perhaps it is not unsafe. But I still don't like it. I would much rather see a step up transformer being used to raise a single phase 120V to a single phase 240V.
- Location
- Windsor, CO NEC: 2017
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- Service Manager
How about 300.3(B)? All conductors of the 240V circuit are not contained within the same raceway or cable. I don't see how this made it past the UL.charlie b said:
NoVA Comms Power
Senior Member
- Location
- Alexandria, VA
It didn't.georgestolz said:
It was supposedly tested by another lab (Intertek) to UL Standard 1363 (Relocatable Power Taps) ... ???
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I saw something similar to this mfg. by Hubbell. Had something to do with marinas, I think. Hubbell 'd probably be pretty reputable, but I don't like it either. Can't exactly say why. Just seems hokey. Something to get something from someplace from which it's not been made to get the something you're getting.
I actually tutored Yogi Berra.
I actually tutored Yogi Berra.
NoVA Comms Power
Senior Member
- Location
- Alexandria, VA
Sounds like you saw one of these:realolman said:
http://www.hubbell-marine.com/pdf%20files/msection2.pdf
- Location
- Windsor, CO NEC: 2017
- Occupation
- Service Manager
I believe that bumper-sticker will go right up there next to Charlie's Rule.realolman said:
Jim W in Tampa
Senior Member
- Location
- Tampa Florida
Its nothing more than a contactor with a 240 coil.Safe ? Maybe ,but i too do not like it.I have done this trick a few times if i needed 240 for an air compressor but its under guarded conditions and not a good idea.
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