1. For the dangerous sites with explosive air mixture: 1 pision、2 pision； 2. Flammable gas, steam class：ⅡA、ⅡB、ⅡC； 3. Temperatures classification：T1~T6； 4. Indoor and outdoor(IP54)。
1. 铸铝合金压铸外壳，表面喷塑； 2. 内装隔爆型微动开关，结构紧凑，可靠性强，体积小， 通断能力和寿命高； 3. 电缆布线。 1. Diecasted Al-alloy shell with plastic-sprayed surface; 2. Inside mounted flame-proofing switch with tight struture, good reliable and small bulk has strong capacity for cutting out and in, and the long service life; 3. Cable wiring.
