1. hazardous:zone 1 &2;
2. explosive atmosphere: class ? a, ? b, ? c;
3. hazardous:zone 21 and 22;
4. flammable dust atmosphere;
5.temperature class:t1~t6;
6. this product(rail type / panel type) can not use alone, it must be used together with other explosion-proof enclosure back of board cable type can work alone.
