A 45 kW IE3 electric motor, rated at roughly 60 HP, is a three-phase asynchronous motor built for medium-to-heavy continuous duty in compressors, pumps, crushers and large conveyor lines. On a 400 V / 50 Hz supply this power step forms the backbone of machinery that demands sustained torque.

The IE3 Efficiency Class at 45 kW

IE3 is the Premium efficiency class under IEC 60034-30-1. Because a motor of this size runs for most of the working day, its optimised windings and core cut load losses sharply compared with an IE1 equivalent, which shows up directly on the annual energy bill.

Speed Options and Torque

A 45 kW motor is usually supplied in a 4-pole 1500 rpm frame for pump and fan duties, a 2-pole 3000 rpm frame where high speed is needed, and a 6-pole 1000 rpm frame for crushers and mills that require high starting torque. The right pole count follows the driven machine's torque-speed curve.

Housing, Insulation and Protection

At this power level a cast iron housing is standard; it damps vibration and withstands mechanical shock better than aluminium. Class F insulation, IP55 protection and S1 continuous duty keep the motor running in dusty, humid plants. Foot-mounted B3, flange-mounted B5 or combined B35 configurations are available.

Sourcing a 45 kW Motor from DRG Motor

DRG Motor, an İzmir-based supplier, offers IE3 motors from 0.55 to 355 kW and delivers the 45 kW step from stock or on short lead time. Share your power, speed and mounting type to get technical support for the correct frame.