1. Explosion Proof Light Switch 2. Rated voltage ... SW-10 Series Explosion Proof Light Switch (IIB, DIP)•Application1. Design for Explosive atmosphere Zone 1 ... ,Zone 2 Combustible dust Zone 20 , Zone 21, Zone 222. Designed for ... 3,IEC60079-0,IEC60079-1,IEC60079-72.Explosion protectionExed IIBT6, DIPA20TA,T63.Rated voltageAC220V4 ...