4.0 Black Single Core Wire

4.0mm Black Single Core Wire has a single conductor, as opposed to multi-core cables that have multiple individual conductors bundled together in one sheath. Single-core wires are used for carrying electrical current from one point to another. The cross-sectional area of the wire is 4.0mm², which determines the current-carrying capacity of the wire. Larger cross-sectional area wires generally have higher current-carrying capacities and lower resistance.

The conductor is surrounded by an insulating material, that serves to protect the conductor from external influences and prevent accidental contact with other conductive elements.

It is used in electrical applications such as household wiring, electrical panels, industrial wiring, automotive wiring, electronics, and single transmission.