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This is 25 feet of 10-gauge, two-conductor NM-B sheathed cable with a bare ground, the Romex-style wire used for 240V circuits and heavy-load appliances. The 10 AWG copper carries 30-amp circuits, so it suits dryers, ranges, water heaters and subpanel feeds, where 12/2 and 14/2 cable would be undersized. It is a single-purpose building wire: indoor, dry locations, run through studs and joists, not for burial or wet areas. Compared with 12/2 NM-B it costs more and is stiffer to pull, but it is the correct gauge for 30A loads.
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This is a 25-foot length of 10/2 NM-B (Romex-style) copper cable with ground. It is standard residential building wire for 240V circuits and heavy-load appliances.
The cable has two insulated 10 AWG copper conductors, one black and one white, plus a bare copper grounding wire. The jacket is PVC thermoplastic. It is made for dry, indoor wall and ceiling cavities only, not for conduit or wet locations.
It is commonly used for 240V or heavy 120V loads, such as electric water heaters, small central air conditioners, larger window AC units, baseboard heaters, short subpanel runs and small appliances that need 30A circuits.
