4x4 0.5mm Open Extension Wall Box – Industrial Socket

The 4x4 0.5mm Open Extension Wall Box is a robust mounting enclosure designed for electrical switches, sockets, and control devices in residential and commercial installations. With a 0.5mm steel construction, it provides durability and protection for internal wiring while accommodating standard 4x4 module dimensions. Ideal for electricians and installers requiring reliable surface or flush-mount socket boxes that meet local electrical standards.