20A circuit


Old 08-27-19, 07:34 PM
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20A circuit

I need to install a small sump pump in the crawl space and would like to tap from a 20A circuit that has 20A circuit breaker and 12 gauge wires. My questions are:

1. Is crawl space considered indoor or exterior?

2. Wire: Can I use the standard 12-2 romex wire? Or individual wires in a conduit?

2. I would like to use GFC outlet. Should this be rated for 20A? Or is the standard 15A good enough?

Thank you.
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Old 08-28-19, 05:16 AM
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0. A sump pump often requires a dedicated circuit, so extending an existing circuit may not be a good plan. Further, many 20A circuits like those feeding kitchens, baths or laundry cannot be used for any other purpose.

1. Crawlspace is interior

2. Romex is OK unless you're in Chicago or NYC.

3. GFCI protection is required in a crawlspace. Either a 15A or 20A receptacle is OK.
Old 08-28-19, 01:23 PM
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Thank you for answering all my questions. The 20A circuit i am tapping from feeds a small study with a laptop and a monitor. Normally it would be a 15A circuit. I will select the sump pump accordingly. Thank you again.
Old 08-28-19, 01:31 PM
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1. Crawlspace is interior
That is a subject in hot debate. I always have and will still consider that an interior location.
However, it can be considered a damp location. The code is not really clear on this subject.

The cable must be fastened to running boards or be drilled thru the floor joists.

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