An IE4 efficiency motor is a three-phase motor that meets the Super Premium class of the IEC 60034-30-1 standard and is one of the most sensible options for plants that run many hours a day. The IE4 class produces the same mechanical power with even lower losses than IE3, and this difference grows clearer on the energy bill as the motor's running hours increase. DRG Motor supplies in this class.

The Difference Between IE4 and IE3

While IE3 Premium provides sufficient efficiency in most applications, IE4 Super Premium goes one step further. The efficiency gap looks small on a motor that runs few hours, but on a motor turning continuously in S1 duty it becomes a significant annual saving. For this reason IE4 stands out in long-running applications.

Lower Losses, Cooler Running

IE4 motors produce lower losses through higher-grade core steel, optimised windings and precise manufacturing tolerances. Lower losses mean less heat, which gives an extra safety margin for Class F insulation and bearing life. Combined with IP55 protection and a cast iron frame, the result is a durable whole.

Applications Where IE4 Fits

Compressors, continuously running pumps, large fans and uninterrupted production lines are where the return on IE4 shows best. It is offered with 2-, 4- and 6-pole options at 3000, 1500 and 1000 rpm.

Deciding to Move to an IE4 Motor

İzmir-based DRG Motor evaluates your running hours and load profile to calculate together what moving to IE4 will gain you. The goal is to minimise not the upfront price but the total cost over the motor's life.