... manufacture Explosion Proof Corrosion Proof Control Unit Application: 1, Designed for Zone 1 and Zone 2 explosive atmosphere. 2, Designed for ... maintainance.9,Steel pipe wiring or cable wiring.Technical Specification:1,Rated voltage:AC220V/380V ,as per requirement2,Rated current: ... Φ11 mm ~Φ18 mm10,Compliance with :GB 3836.1,GB 3836.2,GB 3836.3,IEC60079-0,IEC60079-1,IEC60079-7 Using sortRated voltage(V ...