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M/244 - Electric Motors

Efficiency of general purpose low-voltage 3 phase induction electric motors

Mandate M/244 focuses on standardisation related to the efficiency of general-purpose low-voltage three-phase induction electric motors. Issued by the European Commission, it aims to develop harmonised standards that support energy efficiency improvements and regulatory compliance for these electric motors used widely in industrial and commercial applications. The mandate directs the European Standardisation Organisations (CEN, CENELEC, ETSI) to create technical specifications that facilitate evaluation, testing, and certification of motor efficiency, contributing to the EU's energy-saving goals and environmental policies.

Purpose

This mandate concerns the efficiency of general purpose low-voltage three-phase induction electric motors. It aims to promote the development of harmonised standards that support energy efficiency improvements and compliance with relevant European legislation.

Standardisation request

The mandate requests European standardisation organisations to develop standards related to low-voltage three-phase induction electric motors used for general purposes. These standards should focus on defining minimum energy efficiency levels, measurement methods, testing procedures, and performance criteria to ensure motors meet established efficiency requirements.

Expected deliverables

Deliverables are expected to include harmonised European standards that specify:

  • Energy efficiency classes for general purpose low-voltage three-phase induction motors.
  • Standardised test methods for determining motor efficiency.
  • Requirements covering motor design, performance, and labeling related to energy consumption.
  • Guidelines to facilitate conformity assessment and compliance verification.

Context

This mandate supports the implementation of EU energy efficiency directives and regulations aimed at reducing energy consumption and greenhouse gas emissions across the industrial and commercial sectors. Electric motors represent a significant portion of electricity use in the EU, and improving their efficiency contributes to environmental and economic benefits. The development of harmonised standards under this mandate helps create a uniform legal and market framework, fostering fair competition and facilitating the free movement of goods within the EU internal market.

This mandate covers the standardisation of efficiency requirements for general purpose low-voltage 3-phase induction electric motors. The work focuses on improving energy efficiency and performance of these electric motors used across various industrial and commercial applications.

General Information

Organization
CEN - CEN European Committee for Standardization
Status
Confirmed
Standardization Organization
ICS
Technical Committee
Directive
50
SIST
SIST EN IEC 60034-2-1:2024(Main)
Rotating electrical machines - Part 2-1: Standard methods for determining losses and efficiency from tests (excluding machines for traction vehicles) (IEC 60034-2-1:2024)
EN IEC 60034-2-1:2024

IEC 60034-2-1:2024 is available as IEC 60034-2-1:2024 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.

IEC 60034-2-1:2024 is intended to establish methods of determining efficiencies from tests, and also to specify methods of obtaining specific losses. This document applies to DC machines and to AC synchronous and induction machines of all sizes within the scope of IEC 60034-1 rated for mains operation. These methods may be applied to other types of machines such as rotary converters, AC commutator motors and single-phase induction motors. This third edition cancels and replaces the second edition of IEC 60034-2-1 published in 2014. This edition includes the following significant technical changes with respect to the previous edition:
- Harmonization of layout and requirements with IEC 60034-2-2 and IEC 60034-2-3.

  • Standard
    98 pages
    English language
    e-Library read for
    1 day
CLC
EN IEC 60034-2-1:2024(Main)
Rotating electrical machines - Part 2-1: Standard methods for determining losses and efficiency from tests (excluding machines for traction vehicles)
SIST EN IEC 60034-2-1:2024

IEC 60034-2-1:2024 is available as IEC 60034-2-1:2024 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 60034-2-1:2024 is intended to establish methods of determining efficiencies from tests, and also to specify methods of obtaining specific losses. This document applies to DC machines and to AC synchronous and induction machines of all sizes within the scope of IEC 60034-1 rated for mains operation. These methods may be applied to other types of machines such as rotary converters, AC commutator motors and single-phase induction motors. This third edition cancels and replaces the second edition of IEC 60034-2-1 published in 2014. This edition includes the following significant technical changes with respect to the previous edition: - Harmonization of layout and requirements with IEC 60034-2-2 and IEC 60034-2-3.

  • Standard
    98 pages
    English language
    e-Library read for
    1 day
CLC
EN 60034-2-1:2014(Main)
Rotating electrical machines - Part 2-1: Standard methods for determining losses and efficiency from tests (excluding machines for traction vehicles)
SIST EN 60034-2-1:2015

IEC 60034-2-1:2014(B) is intended to establish methods of determining efficiencies from tests, and also to specify methods of obtaining specific losses. This standard applies to d.c. machines and to a.c. synchronous and induction machines of all sizes within the scope of IEC 60034-1. This new edition includes the following significant technical changes with respect to the previous edition: grouping of the test methods into preferred methods and methods for field or routine testing; addition of the details of the requirements regarding instrumentation; addition of the description of tests required for a specific method in the same sequence as requested for the performance of the test.

  • Standard
    90 pages
    English language
    e-Library read for
    1 day
  • Standard – translation
    88 pages
    Slovenian language
    e-Library read for
    1 day
SIST
SIST EN 60034-2-1:2015(Main)
Rotating electrical machines - Part 2-1: Standard methods for determining losses and efficiency from tests (excluding machines for traction vehicles) (IEC 60034-2-1:2014)
EN 60034-2-1:2014

IEC 60034-2-1:2014(B) is intended to establish methods of determining efficiencies from tests, and also to specify methods of obtaining specific losses. This standard applies to d.c. machines and to a.c. synchronous and induction machines of all sizes within the scope of IEC 60034-1. This new edition includes the following significant technical changes with respect to the previous edition: grouping of the test methods into preferred methods and methods for field or routine testing; addition of the details of the requirements regarding instrumentation; addition of the description of tests required for a specific method in the same sequence as requested for the performance of the test.

  • Standard
    90 pages
    English language
    e-Library read for
    1 day
  • Standard – translation
    88 pages
    Slovenian language
    e-Library read for
    1 day
SIST
SIST EN 60034-2-1:2009
Rotating electrical machines - Part 2-1: Standard methods for determining losses and efficiency from tests (excluding machines for traction vehicles) (IEC 60034-2-1:2007)
EN 60034-2-1:2007

Establishes methods of determining efficiencies from tests, and also specifies methods of obtaining specific losses. Applies to d.c. machines and to a.c. synchronous and induction machines of all sizes within the scope of IEC 60034-1

  • Standard
    78 pages
    English language
    e-Library read for
    1 day
CLC
EN 60034-2-1:2007(Main)
Rotating electrical machines - Part 2-1: Standard methods for determining losses and efficiency from tests (excluding machines for traction vehicles)
SIST EN 60034-2-1:2009

Establishes methods of determining efficiencies from tests, and also specifies methods of obtaining specific losses. Applies to d.c. machines and to a.c. synchronous and induction machines of all sizes within the scope of IEC 60034-1

  • Standard
    78 pages
    English language
    e-Library read for
    1 day
50

Frequently Asked Questions

A European Standardization Mandate is a formal request from the European Commission to the European Standardization Organizations (CEN, CENELEC, and ETSI) to develop European standards (ENs) in support of EU legislation and policies. Mandates are issued under Regulation (EU) No 1025/2012 and help ensure that products and services meet the essential requirements set out in EU directives and regulations.

M/244 is a European Standardization Mandate titled "Efficiency of general purpose low-voltage 3 phase induction electric motors". Efficiency of general purpose low-voltage 3 phase induction electric motors There are 6 standards developed under this mandate.

Standards developed in response to a mandate and cited in the Official Journal of the European Union become "harmonized standards". Products manufactured in compliance with harmonized standards benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation, facilitating CE marking and market access across the European Economic Area.