Is it legal to double lug a fused cut off switch?

5978 Views 12 Replies 5 Participants Last post by Red Squirrel, May 3, 2011

Red Squirrel

Discussion Starter · May 2, 2011

If I wanted to add a sub panel, would it be legal to just feed it off the fused cut off switch that feeds the main panel? I'm guessing no, but just checking. I may be digging my foundation and while I'm there I will run the conduit for my garage sub panel and run the appropriate wiring. Physically it will be easier to feed off the cut off switch, because of where I'd run the conduit, but if it's not legal then I will need to run it a slightly different way. The fuse is rated at 100 amps which is the service I have.

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J. V.

· #2 · May 2, 2011

If this disconnect is outside next to the meter panel and the garage is going to be unattached (you did not say) then you could extend the service. Some meters and disconnects have the ability to accept double lugs. If you do extend your service, it cannot pass through, over or under the main structure.

If you plan to run through the structure to an attached garage, you must follow the feeder rules we discuss here all the time.

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