Brake, End Mount Disc, Static Torque (Ft.-Lb.) 10, Shaft Dia. (In.) 7/8 in, Max. Bore (In.) 7/8 in, Keyseat Size (In.) 3/16 x 3/32, Dripproof Enclosure, Continuous Duty, 115/208-230 Voltage @ 60 Hz, 95/174-190 Voltage @ 50 Hz, 115-208/230V AC or 95/174-190V AC Coil Volts, Single Phase, 3,600 RPM Max. RPM, Max. HP @ 1725 RPM 2 hp, Max. HP @ 3450 RPM 3 hp, Ambient (C) 40 Degrees C, 60/50 Hz, 0.5/0.3 Amps Holding, 11.5/5.8 Inrush Amps, 1.4 Service Factor, 143/145TC NEMA/IEC Frame