Uses: Waterproof junction box junction box is mainly suitable for indoor and outdoor electrical, communications, fire fighting equipment, iron and steel smelting, petrochemical, electronics, electricity, railways, construction sites, mines, mining, airports, hotels, ships, large factories, coastal factories unloading dock equipment, sewage and waste treatment facilities, environmental hazards facilities and so on. Performance: Waterproof and moisture Non-corrosive, anti-static, good insulation Material: Thermoplastic ABS Dimensions: 65mm * 58mm * 35mm (L*W*H) Color: As picture Installation: 1, External installed----inside the box have DIN rail components and comes with 4 setting screws 2, External installed ----can be directly fixed to the wall through the mounting holes in the lower part of the cartridge (Through the four corners of the box, with screws or nails directly fixed on the board or the wall.) Include:Waterproof junction boxes