Supply explosion-proof electrical explosion-proof lamps, amount of giant-proof and corrosion main command controller, supply explosion-proof electrical explosion-proof lamps, Shanghai amount of a giant explosion-proof main command controller, BF supply explosion-proof electrical explosion-proof lighting, Shanghai quantity the giant main proof and corrosion Order control , 28030/1 ~ Series Factory Explosion-proof anti-corrosion main so that the controller (Ⅱ B, Ⅱ C) Scope 1.1 zone, Zone 2 hazardous gas spaces; 2.A grade, B grade, C grade (Ⅱ A, Ⅱ B, Ⅱ C) T1- T6 group explosive gas or vapor environment; 3. strong corrosive gas environment; 4.20 area, Zone 21, 22 explosive dust environment temperature group TB, T6. Features composite type, increased safety enclosure containing five kinds of explosion-proof components; 2. Shell with DMC resin repression, high impact resistance, anti-static, corrosion resistance, good thermal stability, pleasing in appearance; shell cover cover, low cover two; 3 elements are aligned to user requirements can be freely combined; 4 All fasteners are made of stainless steel screws; 5. cable wiring.