This electric, explosion-proof blower is ideally suited for large confined?spaces?in statically conductive environments.?Its single phase motor includes a NEMA rated 115V plug for use with explosion-proof socket (sold separately). Meets Class I, Divisions 1 and 2, Groups C and D and Class II, Divisions 1 and 2, Groups F and G Hazardous Location Requirements. NOTE: Explosion-proof blowers require an explosion-proof socket. Click Here for Hazardous Location Information