Product Type: 3 PhaseHP: 1/2RPM: 1140Volts: 200-230/460Amps: 2.1/2/1Hz: 60Phase: 3Frame: 56Enclosure Type: TENV (Totally Enclosed Non Ventilated)Mounting: RigidMotor Diameter: 6-1/2"Shaft Diameter: 5/8" KeyedShaft Length: 1-7/8"Rotation: ReversibleNumber of Speeds: 1Service Factor (SF): 1.15Bearings: BallThermal Protection: NoneMaximum Ambient Temperature: 40° CInsulation Class: BDuty Cycle: ContinuousH280V1 is listed in Century's cross reference as a possible substitute for the following: A.O. Smith 129220, A.O. Smith 327P832, A.O. Smith EB3056, A.O. Smith P56J6TE100, Baldor M3539, Century 129220, GE 04748, GE 159, GE 5K49MN6079, GE K159, Dayton 2N926, Dayton 2N928, Dayton 4N831, Leeson 110353, Leland Faraday M620, Lincoln LM02535, Lincoln RF6S0.5T61, Marathon G324, Marathon V56T11F5302