Wiring plans to a new garage, suggestions


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Old 08-04-20, 07:12 PM
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Wiring plans to a new garage, suggestions

Hi. I have plans to run wiring to my new garage. I would like to know if I could run a 220v from the sub panel to my new garage and install small sub panel with 6 circuits so I have a 220v outlet to run air compressor... or should I just run 2 separate wires 110v to use for lighting and outlets and no 220v outlet. The sub panel is 40amp, and it is 60 feet from the new garage. I am planning to install the wire under ground, and I will get a permit before I do this. Which plan is better?
 
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Old 08-04-20, 07:21 PM
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Welcome to the forums.

By code you can only run one circuit to a free standing garage. Installing a sub panel is the way to go.
So currently your main panel feeds a 40A sub panel that you want to use to feed the garage.
What is currently connected to the 40A sub panel ?
It may not have enough extra capacity for the garage.
 
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Old 08-04-20, 07:53 PM
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My sub panel have one 30 amp for mig weld and 2 15 amp for light ,thanks for help
 
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Old 08-04-20, 08:48 PM
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if I could run a 220v from the sub panel to my new garage and install small sub panel
I'm not quite following you.

You want to install a new sub panel in your garage.
You need a 240v 30A circuit and two 120v 15A circuits in the garage.

What are you connecting this new circuit to inside the house ?
You said 40A sub panel.
If that is correct. Is that just an empty 40A sub panel or is there something else connected to it.
 
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Old 08-05-20, 03:21 AM
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They want to feed a sub from another sub. My concern would be if the feed to the first sub is large enough to support both .
 
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Old 08-05-20, 07:58 AM
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I am thinking of a #6 four wire feed (the ground wire can be #10) from the garage passing by the existing 40 amp subpanel (or taking a different route) all the way to the next panel upstream.


This will give a little growing room in case the garage needs more than 40 amps of its own in the future
 
 

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