5925-01-537-4623 An enclosure which includes, mounts, and protects one or more circuit breakers. It is designed for and may include a cover and such accessories as mounting hardware, brackets, and conduit fittings. May include terminal boards and/or bus conductors used as a convenience for. Distribution box cover is a protective cover that provides extra protection to the junction box from external hazards. Our large inventory features popular Cover,Distribution Boxparts such as 099-00206-03 IT37, 468816, 465-5235-7, PH060A3-N50-11EM-L-AC, CA12 from premium. SELHOT's plastic power distribution boxes (plastic distribution boards) are impact and oxidation resistant, making them ideal for use in waterproof and dustproof environments. Single piece body folded and welded. Cover fixing with half turn metal srew.