The EU has adopted a new international standard concerning the energy efficiency of electric motors, or the “ECODESIGN”, for 2 to 6-pole high-voltage motors with capacities from 0.75 to 375 kW and voltages up to 1000 V.
As a result, from June 16, 2011 it applies that all manufacturers of electric motors must at least meet the IE2 level. I.e. old stock at wholesale and machinery trade and the like may still be sold, but new production of electric motors may then no longer be in the old efficency standard EFF 1/2/3 for standard applications.
From 1 January 2015, electric motors with a capacity of 7.5 kW to 375 kW (2-4 and 6 pole) must at least meet the IE3 level or IE2 in combination with a frequency converter. From January 2017, electric motors with a capacity of 0.75 kW to 375 kW must at least comply with IE3 level or IE2 in combination with a frequency converter. In concrete terms, this means that all engine manufacturers must optimize, this happens inter alia by means of. higher canning quality in stator and rotor, others take copper rotor rods, but a smaller air gap can also realize this, making the motors mechanically more valuable. In short, this will give a higher cost price. Expectation is plus 20 to 30%, but this is then quickly recouped through the energy bill. More info via this link, Official Journal of the European Union publication sheet!
Returns from IE 1 to IE3