• Fan & Blower - Three Phase, Dripproof Motors • Resilient Base Motors (Single and Two-Speed) • Single and two-speed models, as noted • Variable torque on two speed ratings • Ball bearings • Heavy gauge steel frame and base • Thermal protection, as noted • Service factor, as noted • Nameplated 60/50 Hz at next lower horsepower (except as noted) • Patented VCD™, Voltage Change Device where footnoted “VC” • UL recognized and CSA certified • Model 5K49NN2147X