Product Type: Capacitor StartHP: 1/2RPM: 3450Volts: 115/230Amps: 12.4/6.2Hz: 60Phase: 1Frame: 48YEnclosure Type: ODP (Open Dripproof)Mounting: Round FlangeMotor Diameter: 5-5/8"Shaft Diameter: ThreadedRotation: CCW Pump EndNumber of Speeds: 1Service Factor (SF): 1.90Bearings: BallThermal Protection: AutomaticMaximum Ambient Temperature: 40° CInsulation Class: BDuty Cycle: ContinuousCapacitor: IncludedR1052 is listed in Century's cross reference as a possible substitute for the following: A.O. Smith C48H2FA11, A.O. Smith C48H2FB11, A.O. Smith C48J2B1, A.O. Smith C48J2FA11, A.O. Smith C48J2FB11, A.O. Smith C48J2FC11, A.O. Smith C48J2FC11A1, A.O. Smith C48J2FC11A2, A.O. Smith C48J2FC11VH, A.O. Smith C56J2F1, A.O. Smith C56J2F2, A.O. Smith MTR253, A.O. Smith MTR-253, Sta Rite A200CHSealed Switch Design