Electric Motor Selection Calculator

Calculate required motor power, torque, and frame size considering service factor, duty cycle, and efficiency.

Calculated mechanical power needed at the driven equipment.
kW
Continuous: 1.0, Moderate: 1.15, Heavy duty: 1.25.
IE1: 85-90%, IE2: 87-92%, IE3: 89-95%, IE4: 92-96%.
Typical induction motor: 0.8-0.9.
Synchronous speed. 2-pole: 3000, 4-pole: 1500, 6-pole: 1000 rpm (50Hz).
rpm
Motor rated voltage. 400V (EU), 480V (US).
V

Results

Min Motor Rating-kW
Electrical Power Input-kW
Full Load Torque-N·m
Full Load Current-A
References: NEMA MG 1 — Motors and Generators; IEC 60034