1. For the dangerous sites with explosive air mixture: 1 division、2 division; 2. Flammable gas, steam class：ⅡA、ⅡB、ⅡC; 3. Temperatures classification：T1~T4; 4. Indoor and outdoor(IP54).
1. Diecasted Al-alloy shell with plastic-sprayed surface; 2. Apply to infrequenty change-over circuit and short-circuit protection for the electrical appliance at 380V and 10-400A and distribution system; 3. In-built elements are made up of knife switch and fuse It can be quickly cut on/off; 4. Steelpipe and cable wiring.
