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The SOUTHWIRE/COLEMAN CABLE 63949221 is a 25-foot length of 8/3 NM-B (NMW/G) stranded electrical wire designed for residential and light commercial wiring applications. This cable includes three 8-gauge stranded conductors plus a ground, making it suitable for high-demand branch circuits such as electric ranges, dryers, and large appliances. The stranded construction provides flexibility during routing through walls, conduit, and junction boxes. Licensed electricians and qualified electrical contractors are the primary installers of this cable type. At 6.75 pounds, this 25-foot coil is manageable for single-person installation in typical rough-in work.
This 8/3 NMW/G wire is used in residential new construction and renovation projects where a dedicated 240-volt or high-ampacity branch circuit is required. Common applications include feeds to electric cooking appliances, HVAC equipment circuits, and subpanel runs where NM-B cable is code-permitted. The black outer jacket identifies the 8-gauge conductor size per NEC color convention, aiding quick identification on the job site.
Designed as a standard 8/3 NM-B type wire for use in residential and light commercial branch circuit wiring where NM-B cable is permitted by the NEC and local electrical codes.
Installation of 8/3 NMW/G wire must be performed by a licensed electrician in accordance with the National Electrical Code (NEC) and applicable local codes. Always de-energize the circuit and verify zero voltage with a meter before terminating conductors. NM-B cable is approved for dry, interior locations only — do not install in wet, damp, or outdoor environments. Secure the cable to framing at intervals required by code and protect it from physical damage at penetrations.
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