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03Feb

Increased efficiency for electric motors as of 1 July 2021

Introduction of regulation rules (EU) 2019/1781 with wider coverage and higher IP classes
 
Regulation 2019/1781 shall apply from 1 July 2021 and Regulation 640/2009 shall be repealed on the same day. The European Union is trying to reduce as much as possible the environmental impact of electrical energy-using appliances, without driving businesses and consumers to unnecessary costs.
The number of excluded motors has now decreased considerably and frequency controls are now also included in the new regulation.

Below is a summary on electric motors of the new regulation, for the full text we refer you to the Official Journal of the European Commission on regulation (EU) 2019/1781,

Scope
Induction motors without brushes, commuters, towing rings or electrical connections to the rotor intended for use with a sinus-shaped voltage 50 Hz, 60Hz or 50/60Hz which:
 
  1. Have 2-4-6 of 8 poles
  2. Have a rated voltage (Un) of more than 50 V and a maximum of 1,000 V,
  3. Have a nominal output power (Pn) of at least 0,12 kW and a maximum of 1,000 kW,
  4. Be assessed on the basis of continuous company S1,
  5. Intended for DOL use (directly online),

Key exceptions
 
  1. Motors that are fully integrated into the product and cannot be tested separately and the separation process does not allow the motor to operate.
  2. Motors with an integrated speed controller whose energy performance cannot be independently tested.
  3. Motors with an integrated brake that is an integral part of the inner motor and cannot be removed during testing.
  4. Motors specifically designed and intended to operate exclusively:
        (a) At an altitude of more than 4,000 meters above sea level
        (b) At an ambient temperature of more than 60°C
        (c) At a maximum operating temperature exceeding 400°C
        (d) At an ambient temperature below -30°C
        (e) Where the temperature of the cooling water at the inlet of the product is less than 0°C or more than 32°C
  5. Motors designed for use when immersed in a liquid.
  6. Explosion-proof Motors specifically designed for mining.
  7. Fully closed motors without a fan (TENV)
  8. Motors with multiple speeds
  9. Motors placed on the market before 1 July 2029 as substitutes for identical motors built into products which were expressly placed on the market as such before 1 July 2022.

Time line to feel the new regulation

Safe area motors
1 July 2021
0.12 => 0.55 kW                           2-4-6-8 poles motors             => IE2
0.75 => 1,000 kW                         2-4-6-8 poles motors             => IE3
This means that the motors controlled by a frequency controller must also meet at least efficiency class IE3 from 1 July 2021

1 July 2023
0.12 kW and larger                         1 phase motors                      => IE2
0.75=>75 and 200 =>1,000 kW      2-4-6-8 poles motors             => IE3
75=>200 kW                                  2-4-6 poles motors                => IE4
 
Ex motors
1 juli 2023
0.12 => 1,000 kW                          2-4-6-8 pole Ex eb motors       => IE2
 
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