An efficient electric motor performs the same mechanical work while consuming less electrical energy. Efficiency is the ratio between the power a motor draws and the power it delivers to the shaft, and in continuously running systems even a few points of this ratio create a significant long-term difference. DRG Motor supplies high-efficiency motors.

Where Efficiency Is Lost

Losses in a motor come from winding resistance (copper loss), the lamination stack (iron loss), bearing friction and fan loss. Efficient motors reduce these losses by using higher-grade laminations, thicker copper and an optimised air gap.

IEC Efficiency Classes

The IEC 60034-30-1 standard grades motors from IE1 (Standard) to IE5 (Ultra Premium). IE3 (Premium) and IE4 (Super Premium) are the most widely chosen high-efficiency classes in industry and have become the mandatory minimum in many applications.

What Efficiency Brings to a Business

High efficiency means not only energy savings but also lower winding temperature. A cooler-running motor has longer-lasting insulation and reduced failure risk, which lowers maintenance costs.

DRG Motor for Efficient Motors

DRG Motor offers IP55-protected, Class F insulated motors in IE3 and IE4 efficiency classes from 0.55 to 355 kW. We can select the efficient model best suited to your plant's load profile together.