This is 6-gauge, 3-conductor NM-B copper building wire with a ground, rated 600V and 55 amps. It carries two hots and a neutral, so it feeds 120/240V loads that need both voltages, such as electric ranges, large AC units and sub-panels. The stranded conductors bend more easily than solid 6-gauge, which helps in tight runs and panel work. It is the standard choice for heavy residential branch circuits; aluminum SER and individual THHN in conduit are the usual alternatives, and each has its own code rules.
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Buyers rate it highly, with 144 ratings averaging 4.9 out of 5. They mainly praise the quality of the copper and the convenience of stranded conductors on heavy runs.
This is 6/3 with ground NM-B nonmetallic-sheathed copper cable in black. It has three stranded copper conductors and a bare ground wire. It is rated for 600 volts and has an allowable ampacity of 55 amps.
The conductors are soft annealed copper with compressed stranding. Each has 90°C-rated PVC insulation, and the cable has a nylon-jacketed PVC sheath. It is designed for easier pulling during installation. The black jacket identifies 6 AWG cable.
It is used in residential branch circuits for large appliances and equipment that draw up to 55 amps. It supports 120/240V loads with two hot conductors and one neutral. Typical uses include electric ranges and ovens, large air conditioners, sub-panels, and electric dryers or spas that need a neutral connection. It can be used for exposed and concealed work in normally dry locations. It can also run in air voids of masonry block or tile walls that are not wet or damp.
