Brand: Marathon Item: Motor IP Rating: IP43 Series: Black MAX Mounting: C-face/removable rigid base Manufacturer Part Number: 056H17T5302 Voltage Rating: 230/460 VAC Horsepower Rating: 1hp Shaft Type: Round with square key Enclosure Type: TENV Voltage Type: AC Number of Phases: 3 Frame Material: Rolled steel Nameplate RPM: 1750rpm Motor Frame: NEMA 56C Motor Type: Induction Integrated Brake: No Shaft Diameter: 5/8in Efficiency: 84 Overload Type: None Efficiency Group: High efficiency Motor Application: High-performance inverter duty Synchronous Speed: 1800rpm Shaft Material: 1144 Stressproof (C-223) steel Electrically Reversible: Yes Insulation Class: Class F Service Factor: 1.0 NEMA Design: Design A Junction Box Orientation: F1 Mounting Orientation: Horizontal or vertical Constant Torque Rating: 1000:1 Variable Torque Rating: 10:1 Marathon Black MAX high efficiency AC induction motor, high-performance inverter duty, 1hp, 3-phase, 230/460 VAC, 1800rpm, TENV, NEMA 56C frame, rolled steel, C-face/removable rigid base mount.