Upgrading from IE3 to IE4 motors has several impacts. Let's have look what needs to be considered to easily realize the migration. Let’s focus on electric motors in scope of the regulation, which means 2-, 4- and 6-pole motors with power rating 75-200 kW.

From July 2021, it requires the efficiency class Premium Efficiency (IE3) for 2- to 8-pole electric motors from 0.75 kW to 1,000 kW. From July 2023, it requires the efficiency class Super Premium Efficiency (IE4) for 2- to 6-pole motors of medium power from 75 kW to 200 kW.

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global harmonization of energy efficiency classes for electric motors. Compared with IEC/EN 60034-30: 2008, it significantly expands the range of products covered with the inclusion of 8-pole mot. rs and introduces IE4 efficiency perform.

Electric motors are categorised into efficiency classes: IE1, IE2, IE3, and IE4, each representing a step up in energy efficiency. IE1 motors are the least efficient, while IE4 motors are the most efficient.

improvements (IE3 and IE4). The Ecodesign Directive in the EU enforces energy efficiency requirements, and in many cases, motors need to meet IE3 or higher standards to be legally sold in the market. In summary, the key difference in efficiency classification lies in the terminology and regulatory context, with NEMA being more regionally specific

Oct 12, 2012 · My question is if it makes sense to specify IE4 motors (default is IE3). Is the cost difference significant, are there concerns in swapping one for the other? So if the supplier would normally work with IE3, if we demand IE4 they could not deliver.

General purpose motors with aluminum housing, IP66 protection and C4 painting system are suitable for a wide range of standard drive tasks in industrial environments and humid atmospheres. GP motors are offered in a power range from 0.09kW to 45kW and have an efficiency class up to IE4.

EFF1, EFF2, EFF3 are the European Efficiency Classification standard and IE1, IE2, IE3, IE4, IE5 are the International Electrotechnical Commission (IEC) standards. On EFF class motor’s, the stray loss will be considered as 0.5% of the input power.

Four different classes have been defined: IE1, IE2, IE3 and IE4. IE4-classed motors have the best efficiency; this is the class for energy-saving or high-efficiency motors. Older motor models without efficiency specification are included in class IE1.