The IE4 Super Premium efficiency class, defined in IEC 60034-30-1, marks a level that noticeably reduces losses compared with an IE3 motor of the same rating. As a supplier based in İzmir, DRG Motor builds high-efficiency IE4 motors for plants that run continuously on a 400 V / 50 Hz supply and want to lower their energy draw.

What the IE4 Class Means

IEC 60034-30-1 ranks efficiency from IE1 Standard and IE2 High through IE3 Premium up to IE4 Super Premium. IE4 motors draw less active power for the same shaft output thanks to an optimised lamination stack, lower-resistance copper windings and a precise air gap. On motors running more than 2,000 hours a year, this difference feeds straight into the electricity bill.

Speed and Pole Options

IE4 motors are offered as 2-pole (3000 rpm), 4-pole (1500 rpm) and 6-pole (1000 rpm) designs. Four-pole units are common for pumps and fans, while 2-pole versions suit compressors that need higher speed. The correct pole count follows the rated speed of the driven machine.

Construction and Protection

DRG IE4 motors are built with IP55 protection and Class F insulation and are rated for S1 continuous duty. The cast iron frame damps vibration, extends bearing life and withstands heavy industrial conditions. Mounting is available as B3 foot-mounted, B5 flange-mounted or B14 face-mounted to match the machine geometry.

The Payback of Moving to IE4

Switching to a high-efficiency motor raises the initial outlay somewhat against an IE3 model, but on heavily loaded lines the reduced consumption offsets that gap over a fairly short period. DRG Motor offers IE4 options from 0.55 to 355 kW; contact our team to match the right model to your power, speed and mounting requirements.