Metallic Trunking Double Knockout 150*50

A double knockout 150×50 refers to an electrical junction or switch box measuring 150 mm × 50 mm that has two knockouts—pre-scored openings that can be removed to allow the entry of electrical conduit or cables. This design allows two cables or conduits to enter the box, making it suitable for wiring setups where multiple connections are needed, such as dual switches, sockets, or parallel circuits. These boxes are typically made of PVC or metal, provide protection for internal wiring, and are used in residential, commercial, or industrial electrical installations.