What is 10/2 NM-B wire used for?

It is used for 30-amp, 240-volt branch circuits in dry indoor locations, such as electric dryers, water heaters and some ranges, where local code permits NM cable.

Can this cable be used outdoors or underground?

No. NM-B is rated for dry locations only. It is not for wet locations, buried runs or outdoor exposure.

What does 10/2 with ground mean?

It has two 10-gauge insulated conductors plus a bare ground wire. The ground counts separately, so it is not a three-conductor cable.

Why is the ampacity limited to 60°C?

NM-B uses the 60°C ampacity column under code, so 10-gauge copper is rated 30 amps even though the conductor insulation is rated to 90°C.

Does the SIMpull jacket change how it installs?

The jacket is made to slide through framing and strip more cleanly than standard NM jackets, which reduces pulling effort on long runs.

Is 10/2 heavier than 12/2?

Yes. The larger copper conductors make it stiffer and harder to bend, so plan box fill and bend radius before pulling.

Where is the 100 Foot 10/2 NM-B Romex Wire Ground Residential cheapest?

At Grainger Industrial Supply, for $51.50, 78% under what the other stores charge, as of our latest check.

Where can I buy the 100 Foot 10/2 NM-B Romex Wire Ground Residential?

13 stores we checked sell it, including The Home Depot, Amazon, Grainger Industrial Supply, Ace Hardware, eBay.

100 Foot 10/2 NM-B Romex Wire Ground Residential

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$51.50at Grainger Industrial SupplyChecked 22 min ago

78% under what the other stores charge

Compared across 13 stores. Prices are checked against each store and labelled with when.

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100 Foot 10/2 NM-B Romex Wire Ground Residential

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100 Foot 10/2 NM-B Romex Wire Ground Residential

Best price now

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