Emerson Electric Co. 4381 Three Phase AC Motor

Emerson Electric Co. 4381 Three Phase AC Motor is a 1 HP, 575 V, 3-phase, 60 Hz motor with a nominal speed of 1725 RPM. The model 4381 identifies this Emerson unit as a three-phase AC motor intended for use on a 575-volt, three-phase power source with a 60 Hz electrical supply. It is suitable for industrial equipment that requires a single horsepower drive operating from 575 V three-phase service at 60 Hz, and it complements systems built around these specifications. Manufactured by Emerson, the 4381 designation helps technicians confirm compatibility with equipment and controls designed for 60 Hz operation and 575 V service. The combination of horsepower, voltage, phase, frequency, and speed defines the core performance profile of this specific motor, enabling technicians to match it to compatible drive systems and replacement needs.