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generator transfer switch

Posted on Dec 24, 09 at 04:10 PM

Hi,

I just purchased a generator (5500 watt). I would like it wired into my home wiring. I want to be safe, so I have looked at transfer switches but they are pricey. Some switches I have researched look simple and I like to build things. Can you suggest a plan; I have looked online and can't find a do-it-yourself plan? I have looked at a Reliance Transfer Switch Item #: 100020 sold by Northern Tool. It looks like two breakers mounted back to back with a common link between the two that insures that when one is on the other is off. It appears to me that current from the generator or utility (depending on which is being used) are being back fed through the breaker to power a panel of designated circuits that is separate from the main panel, is it safe to back feed through a breaker or are these special breakers? Any information you can provide would be appreciated.

Thanks,

Mike

Jim Bessey

Posts: 1164

Re: generator transfer switch Reply #1 on: Dec 24, 09 at 06:21 PM
Hi Mike, I'm sending out a request for some assistance here. I know the store-bought transfer switches are pricey, but haven't a clue about building your own. It's Christmas Eve, so grabbing a helpful reply for you here may be tricky. I'll do the best I can. Merry Christmas! ~Jim Bessey - steward for Home & Garden My Portfolio

Jim Bessey

Posts: 1164

Re: generator transfer switch

Reply #2 on: Dec 28, 09 at 02:14 AM

Hi Mike,

Sorry to keep you waiting. I've consulted with an expert from among our Helium membership and received a long, emphatic response from him. Several paragraphs, in fact. I'll condense that response here:

"Don't do it."

Unless you're an electrical engineer, highly experienced electrician, or have one of those to advise you. This is a dangerous, mandatory-inspection task. Get it wrong and suffer potentially thousands of dollars in damage, injury, even death.

It's not worth the risk and the few dollars saved up front. Buy the right switch from a reputable supplier. Please.

~Jim Bessey - steward for Home & Garden

My Portfolio

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