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Old 03-26-2011, 02:33 PM   #1
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House to Garage

Hi, I just bought a house it has an 100A Main at the house and a 100A sub panel in the garage. The wire is buried underground about a 50ft run and it is 10-3. I have a lot of wood working tool and would like to make it a shop. I was just wondering is 10-3 sufficient from panel to panel because I thought it should be 2 or 4 gauge?

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Old 03-26-2011, 04:28 PM   #2
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House to Garage

10/3 is not enough for 100 amps. What size is the breaker for the sub-panel that is in the main panel?

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Old 03-26-2011, 04:50 PM   #3
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House to Garage

Double 30A
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Old 03-26-2011, 05:11 PM   #4
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House to Garage

The breaker is correct, a 10-3 wire is capable of carrying 30 amps, 240 volts, no more. If you need more current capacity, you will need to install a larger capacity 4 wire cable, and an appropriate panel in the garage. There are dozens of threads on this forum with detailed instructions on how to make such a connection, just do a search.
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