Brand: Marathon Item: Motor IP Rating: IP43 Series: Black MAX Mounting: C-face/rigid base Voltage Rating: 230/460 VAC Horsepower Rating: 5hp Shaft Type: Round with square key Enclosure Type: TENV Voltage Type: AC Number of Phases: 3 Frame Material: Aluminum Nameplate RPM: 1760rpm Motor Frame: NEMA 184TC Motor Type: Induction Integrated Brake: No Shaft Diameter: 1-1/8in Efficiency: 89.5 Overload Type: None Efficiency Group: Premium 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 Junction Box Orientation: F1 reversible Mounting Orientation: Horizontal or vertical Constant Torque Rating: 1000:1 Variable Torque Rating: 10:1 Marathon Black MAX premium efficiency AC induction motor, high-performance inverter duty, 5hp, 3-phase, 230/460 VAC, 1800rpm, TENV, NEMA 184TC frame, aluminum, C-face/rigid base mount.