TPI SPECIALTY PEDESTAL FANS 30" Non-Oscillating Single Phase Explosion Proof These quality industrial fans include an enclosed permanently lubricated, PSC-type ball bearing motor for long life and optimum performance. 3 quiet aluminum blades are enclosed in double locking steel wire guards for safety. The pivot-action fan head of these pedestal fans allow vertical tilt angle adjustments. Pedestal pole easily adjusts center of fan from 52-82"H. Floor fans have a 27" diameter steel base for stability. Meets OSHA standards, UL listed. Includes a junction box for hard wiring. Explosion Proof Models are unassembled and feature Class I and II protection for flammable and carbon dust environment protection. Horsepower rating based upon maximum speed/load.