News –

Implications of the new Ecodesign Regulation on drive technology

Since 1 July 2021, new energy efficiency rules for three-phase electric motors have come into effect with the new Ecodesign Regulation (EU) 2019/1781, which affect explosion-protected electric motors and proven standard electric motors. On 1 July 2023, more stringent regulations will come into force.

Bargteheide , 2021-07-28

Among others, the change implies the following new rules: Energy efficiency class IE3 applies to 3-phase asynchronous motors with rated powers from ≥ 0.75 kW to ≤ 1,000 kW, and now also for 8-pole motors that have been an exception so far. Up to now, the maximum power above which IE3 has been prescribed, was ≤ 375 kW.

Provisions for the smaller 3-phase asynchronous motors with rated powers from ≥ 0.12 kW to < 0.75 kW have been newly added. They must now comply with energy efficiency class IE2. The same applies to 2-, 4-, 6- and 8-pole motors.

The IE3 as well as the IE2 classes now also include explosion-protected electric motors of ignition protection types Ex tb, Ex tc, Ex ec and Ex d. Previous exceptions for brake motors, inverter-operated motors and explosion-protected motors have been annulled.

Keeping an eye on changes as per July 2023

On 1 July 2023, efficiency rules will become more stringent. Energy efficiency class IE2 will then apply for explosion-protected (ignition protection type Ex eb) 3-phase asynchronous motors with rated powers from ≥ 0.12 kW to ≤ 1,000 kW, and for 1-phase asynchronous motors ≥ 0.12 kW. Energy efficiency class IE4 will be mandatory for 3-phase asynchronous motors from ≥ 75 kW to ≤ 200 kW for 2-, 4- or 6-pole motors. Exceptions are brake motors and explosion-protected electric motors. In case of any queries regarding drive selection in compliance with the directive and other details of the new Ecodesign Regulation (EU) 2019/1781, your personal contact partners at NORD DRIVESYSTEMS will be glad to assist you!