Transfer Switch Installation for Generator

joel_mdSeptember 5, 2011

Hi everybody! I intend to get a 30-amp manual transfer switch so my important circuits can be powered via generator during a power outage. I will have an electrician do the wiring, but want to have a good understanding of everything prior to making the call.

I know that normally one would put in a 30-amp breaker on the main service panel and connect it to the transfer switch. However, I have two 150-amp main panels sitting side-by-side in my garage to power my house. Most of the circuits I want to power are on one panel, but a couple of important ones are on the other panel. Is there a way I can power circuits on two different main panels with one transfer switch?

Thank you for reporting this comment. Undo
Ron Natalie

Most likely not. The usual reason that two panels are put in side by side is not a shortage of current capacity but that they ran out of breaker positions. With only 30A going to the generator, it seems unlikely that only moving a few circuits over is going to make any real overload issues.

    Bookmark   September 5, 2011 at 10:06AM
Thank you for reporting this comment. Undo

So, you're suggesting moving some of the circuits from one panel to the other so that all of the ones I want to power with the generator are on one service panel?

    Bookmark   September 5, 2011 at 1:42PM
Thank you for reporting this comment. Undo
Ron Natalie

Most of these cheap transfer switches are panels in their own right. You just connect the circuit to the breakers in the switch panel. The only issue is if the 30 A circuit (and the aggregate panel it is in) can handle the load of all the circuits you move to the generator panel

    Bookmark   September 5, 2011 at 10:57PM
Sign Up to comment
More Discussions
Troubleshooting Kohler 12RES Problem
I have a Kohler 12RES generator with an RDT 100 Amp...
Outdoor subpanel as AC disconnect
Can we use an outdoor subpanel as an AC disconnect?...
Can I electrify battery-operated lights?
Hi all. Is there a way to electrify a battery operated...
Can you make a splice inside one of these?
The reason I ask is my neighbor's house was destroyed...
Badly done multi-wire circuits (previous owner strikes again..)
I bought a 1940-ish house last year, for which the...
Sponsored Products
Pickens U-Shape Grab Bar with Leg Support
Signature Hardware
Three Rustic Jugs Cascading Fountain
Lamps Plus
Flower Market Dinner Plate - GREEN
$38.00 | Horchow
Hideaway Storage Basket
$24.99 | Dot & Bo
4" Dimmable Fluorescent IC Housing by Juno
$102.92 | Lumens
SplendoRest 6-inch Back to School Twin XL-size Mattress-in-a-Box
People viewed this after searching for:
© 2015 Houzz Inc. Houzz® The new way to design your home™