3.7 HP Electric Air Compressor Motor 3450 RPM 56 Frame Brand new 3.7 hp 230-volt compressor duty electric motor. This motor features a 56 frame with a 5/8" diameter shaft and is 3450 RPM. This is a non-reversible motor and features counter-clockwise (CCW) rotation facing the shaft. This is a high-quality motor designed to handle and withstand the startup load of a compressor pump but will also work with many other applications. Below is a full list of specifications. Specifications: Open Drip Proof (ODP) Single Phase 3.7 HP 3450 RPM 60hz 230 Volts AMB 40 °C Frame: 56 Duty: Cont. Compressor Service Factor: 1.0 Full Load Amps: 17.2 Insulation Class: F Non-Reversible, CCW Rotation Facing Shaft Thermally Protected Overall Length W/O Shaft: Approx 12" Overall Length With Shaft: Approx 14-1/2" Overall Height: Approx 8-5/8" Overall Width: Approx 6-5/8" Shaft Diameter: 5/8" Shaft Length: 2-1/2" Standard Size Keyway: 3/16" Features Manual Reset Overload Protection