TPI SUSPENSION BLOWERS 48" Belt Drive Hazardous Location Fan These blowers suspend for hanging applications using steel chains and S-hooks included. Corrosion and dent proof high density polyethylene housing. 1-speed permanently lubricated ball bearing motor ensures long life. Front and rear spiral wire safety guards enclose 4 aluminum fan blades. Includes external junction boxes that allow wiring without removing guards. Hazardous Location Fans have explosion proof motors and are rated for Class I and II protection for flammable and carbon dust environment protection. 115/230V. Meets OSHA standards. UL listed. 1 Year Limited Warranty. Horsepower rating based upon maximum speed/load.