Front and rear access in a single cabinet — engineered for high-density control panels, large switchgear assemblies, and installations where internal depth demands dual-door configuration. Available in stainless steel, carbon steel, and FRP with NEMA 4X and IP66 ratings as standard options. Mulan Group delivers rugged, ATEX-certified electrical enclosures custom -built for mining operations. OEM/ODM support from design to compliance. ) on DirectIndustry, the industry specialist for your professional purchases. This article. A double door distribution board, also known as a double door consumer unit or distribution box, is an electrical enclosure used to house the electrical wiring and protective devices for a building's electrical system.