The LJB Range of flameproof enclosures are manufactured in two sizes, designated as Type LJB1 and LJB2 enclosures. They comprise a base and a screw cover, both are manufactured from aluminium, a socket head set screw prevents the cover and base becoming loose. The enclosure is provided with internal and external earthing facilities and its walls have threaded entries that allow external cables to be connected. Internally, the enclosure is provided with a baseboard for mounting electrical parts. In addition following variants of LJB series are available: LJB2D consist of a dome shaped cover. LJB2W consist of a cover with a glass window.