New efficiency standard for electrical motors (ECO directive)
A new standard introduced 2008 (EN 60034-30:2008) for classification of three phase asynchronous motors by IEC (International Electro technical Commission). This is during 2014 supplemented with a new standard (EN 60034-30-1:2014).
According to the above new standards, the new classes have the designations IE1, IE2, IE3 where the IE3 have the highest efficiency.
IE1: Motors with efficiency close to the old class EFF2, but a new standard for testing the motors results in a lower level than the previous standard EFF2.
IE2: Motors with efficiency close to the old class EFF1, but a new standard for testing the motors results in a lower level than the previous.
IE3: Motors with a higher efficiency level than the previous EFF1, IE3 is also called Premium Efficiency.
There is also discussions to introduce the class called IE4, the losses is 15% less, also called Super Premium Efficiency.
16 June 2011 IE2
All 3-phase motors (0,75 – 375 kW, 2-, 4- and 6-poles) being produced in or imported to Europe must reach the IE2 level.
1 January 2015 IE3
All 3-phase motors (7,5 – 375 kW, 2-, 4- and 6-poles) being produced in or imported to Europe must reach the IE3 level. Except for motors driven by an inverter, there is still OK with an IE2 motor.
1 January 2017 IE3
All 3-phase motors (0,75 – 375 kW, 2-, 4- and 6-poles) as will be produced in or imported to Europe must reach the IE3 level. Except if the motors will be driven by an inverter, there is still OK with an IE2 motor.
If an IE2 motor will be driven by an inverter and excepted by the above rules, it must be marked with follow label:
Below is some examples of applications which is excepted from the regulations:
– liquid cooled motors
– integrated motors
– used at altitudes 4000 meters above sea level
– used at ambient temp. over 60°C
– used at ambient temp. under -30°C
– explosion proof motors
– brake motors
The definition of a motor is and will still be:
– is rated on the basis of continuous duty operation
Motors as will be exported outside EU will also be excepted from the regulations.
If more detailed information is needed, please visit the follow website for full information
CEMEP Energy Efficiency with Drive Systems 2015