Typically there are three parts to nm electrical cable.
Non metallic wire.
This is in contrast to metallic sheathed cable or conduit wiring in which the bundle of individual conductors is protected by some form of a metal coil or metal conduit.
Non metallic jacket wire non metallic wire by the roll our romex simpull nm b can be used for exposed and concealed work in normally dry locations at temperatures not to exceed 90 c primarily used in residential wiring as branch circuits for outlets switches and other loads.
12 2 nm b non metallic sheathed cable residential indoor wire equivalent to romex 100ft cut make sure this fits by entering your model number.
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Nylon 12 awg residential wire for outlets switches and other loads copper cu conductors for dry locations up to 90 degrees celsius or 194 degrees.
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