2 to 2.6 HP 3450 RPM, 11.5 amps, 230V 60hz. Switchless single phase; NEMA 56Y frame (no base), 5/8" diameter threaded stainless steel shaft; Overload Protection: Auto. Class B insulation, 6.5" body dia.; Non-Reversible - CCW Rotation facing the shaft; Square Flange Mount (1081 design), Ball Bearings, Open Drip Proof (ODP); Optimized internal airflow design minimizes heat and moisture.Internal bearing cover protects the drive/pump end ball bearing from water and debris that may occur inside of the motor. Three additional layers of drive/pump end bearing protection: Double Sealed Ball Bearing Lip Seal Water Slinger56Y Square Flange replacement pool motor. Motor is found on many in ground pool pumps such as PacFab Challenger, Whisperflo, Pentair. Motor has a square type flange for mounting the pump. 4 non-threaded bolts holes in flange. 1 year manufacture warranty. Model: K063DFR5154023JReplaces Century B840, B2840 Replaces US Motor EB840 Non-Compliant with Title 20 Regulations in the State of California