DRG Motor's next-generation IE3 electric motors are three-phase asynchronous machines designed to meet the Premium efficiency class of IEC 60034-30-1. A larger copper cross-section in the windings and low-loss silicon steel laminations form the core of this series' efficiency gain.

What Does the IE3 Efficiency Class Mean?

IE3 defines the Premium efficiency level and sits above the IE1 Standard and IE2 High classes. It delivers the same shaft power while drawing less line current, achieved by cutting winding and iron losses. Since IE3 is the minimum efficiency threshold in many markets, including Turkey, it is the de facto standard for new drives.

Mechanical Design and Cooling

The series is built with a cast iron frame, IP55 protection and Class F insulation. A rear-mounted fan provides forced cooling, while the rotatable terminal box simplifies cable routing during on-site installation. B3, B5 and B14 mounting options suit different machine interfaces.

Where Is It Preferred?

In pump, fan, conveyor, compressor and general drive groups that run many hours a day, the low losses of an IE3 motor directly affect operating cost. In continuously running S1-duty systems, the efficiency advantage shows itself within a short period.

Choosing the Right IE3 Motor

DRG Motor offers its IE3 series from 0.55 to 355 kW with 2/4/6-pole options. Power, speed, mounting type and protection class are set to the application. Contact DRG for the configuration and quotation suited to your plant.