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Electric motors efficiency

The lowest price for an electric motor doesn’t mean financial savings

“Low efficiency motors (IE1) are still very often supplied in the Czech Republic (and many other Eastern Bloc countries). This is despite the fact that they are highly inefficient in terms of operating costs and for many years their use has been directly prohibited by Directive 2009/125/EC due to excessive environmental burdens“.

How to choose the right electric motor?

Higher drive efficiency classes offer long-term energy savings, allowing you to return your initial investment multiple times.

8, 16 or 24 hours?

When choosing an electric motor, consider the operating time of the applications in which you will use the electric motor.

frequency converter

Considerable savings can also be achieved by wiring the electric motor correctly and its correct control with the use of an inverter (mainly for pumps and fans).

higher energy efficiency

Select motors that are in higher energy efficiency classes (IE2, IE3 or IE4). Not only do you save the environment, but also your energy costs.

A few myths about energy efficiency

The right choice of electric motor will save you input costs as well as the entire operation. Although the input price of the electric motor with higher efficiency (IE3) is higher, the investment will return multiple times.

“IE1 are popular because they are cheap”

Yes, motors with low efficiency (IE1) are still very often supplied in the Czech Republic due to their low purchase price.
This is despite the fact that they are highly inefficient in terms of operating costs and excessive environmental burdens and have been directly prohibited for many years by Directive 2009/125/EC.

“IE1 can be used as an exception from the Directive”

No, if you choose this solution and use motors with different intentions than those designed for intermittent loads or running, you’ll face a number of penalties.

“IE3 are expensive”

No, the cost of electric motors (IE3) will return many times.


Comparison of energy prices and input costs of electric motor for different efficiency classes (IE1-IE4)
more on: d2drives.cz/sporte-s-novym-pohonem (in Czech only)

MORE ON ENERGY EFFICIENCY ON THE MANUFACTURER’S WEBSITE

Save with the right motor!