Gen XFR Switch & Tandem/Duplex Breakers - Electrical - DIY Chatroom Home Improvement Forum


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Old 10-26-2012, 08:06 AM   #1
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Gen XFR switch & Tandem/Duplex breakers


Hi Guys/Gals,

There's no restrictions on using a Manual XFR switch with tandem breakers, right?

I'm Planning to install that this weekend. Winter coming which could mean power outages.

Thanks,

~S

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Old 10-26-2012, 08:27 AM   #2
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Gen XFR switch & Tandem/Duplex breakers


To supply 240 to your panel you need a breaker that connects to both hot legs. Most tandems only hit one leg.

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Old 10-26-2012, 11:15 AM   #3
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Gen XFR switch & Tandem/Duplex breakers


Thanks Jim. So I'm not having to power any 240v circuits from my generator so I should be good right? The 6 circuits I want to put on my manual XFR switch are 15A or 110/120v so I should be able to power up a device that's on a tandem breaker/circuit, right?
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Old 10-26-2012, 11:17 AM   #4
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Gen XFR switch & Tandem/Duplex breakers


Every other breaker in a typical panel is fed by the opposite hot leg of the one next to it. If you only supply 120 to the panel only half of it will work.
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