FAH series waterproof dust-proof junction box 1, ambient temperature -25 ℃ ~ + 55 ℃; 2, the installation height does not exceed an altitude of 2000 m; 3, acid, alkali, salt, ammonia, chlorine, corrosion, more water, more dust , humid environment; 4, widely used in petroleum, chemical, warehouses, food, pharmaceutical, military and other factories and enterprises wiring pipes. Features 1, high pressure casting aluminum alloy shell molding, surface high pressure electrostatic spray after blasting; 2, into the mouth with a variety of methods and specifications to meet a variety of on-site wiring needs; 3, anti-twist special terminal, security reliable, easy to wire; 4, into the mouth of a conventional screw type pipe thread, according to claim processed into metric threads or NPT threads can be; 5, pipe or cable wiring. 1. "" indicates flat cap, "" indicates hung cover. 2. Under normal circumstances, hanging head cover and through the same caliber as can be specially made. 3. "waterproof dust-proof junction box FHD-DN20" through the first generally cylindrical pipe thread G1 / 2 ", G1" as can be specially made. Example label: 1.FHD-3 / 4B meaning: AH proof junction box, pipe thread G3 / 4 "straight two-level cover 2. .FHD -1/2 meaning:. AH proof junction box, pipe thread of G1 / 2 "rectangular two corner hung cover. Rated voltage (V) Rated Current (A) proof mark Thread Size (G) protection class 380 20 Exd II BT6 * Exd II CT6 * Exe II T5 1/2 3/4 1 IP54 * IP55