SIST EN IEC 61800-9-2:2025/A1:2026

Adjustable speed electrical power drive systems (PDS) - Part 9-2: Ecodesign for motor systems - Energy efficiency determination and classification (IEC 61800-9-2:2023/AMD1:2025)

Drehzahlveränderbare elektrische Antriebe - Teil 9-2: Ökodesign für Motorsysteme - Energieeffizienzbestimmung und -klassifizierung (IEC 61800-9-2:2023/AMD1:2025)

Entraînements électriques de puissance (PDS) à vitesse variable - Partie 9-2: Écoconception des systèmes moteurs - Détermination et classification de l'efficacité énergétique (IEC 61800-9-2:2023/AMD1:2025)

Električni pogonski sistemi z nastavljivo hitrostjo (PDS) - 9-2. del: Okoljsko primerna zasnova za motorne sisteme - Določitev in klasifikacija energijske učinkovitosti - Dopolnilo A1 (IEC 61800-9-2:2023/AMD1:2025)

General Information

• Status: Published
• Public Enquiry End Date: 29-Sep-2025
• Publication Date: 12-Apr-2026
• ICS: 27.015 - Energy efficiency. Energy conservation in general
• ICS: 29.130.01 - Switchgear and controlgear in general
• ICS: 29.160.30 - Motors
• ICS: 29.200 - Rectifiers. Convertors. Stabilized power supply
• Technical Committee: MOV - Measuring equipment for electromagnetic quantities
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 24-Feb-2026
• Due Date: 01-May-2026
• Completion Date: 13-Apr-2026
• Ref Project: EN IEC 61800-9-2:2025/A1:2026 - Adjustable speed electrical power drive systems (PDS) - Part 9-2: Ecodesign for motor systems - Energy efficiency determination and classification

Relations

• Referred By: SIST EN 1473:2021 - Installation and equipment for liquefied natural gas - Design of onshore installations
• Effective Date: 20-Feb-2026
• Amends: SIST EN IEC 61800-9-2:2025 - Adjustable speed electrical power drive systems (PDS) - Part 9-2: Ecodesign for motor systems - Energy efficiency determination and classification(IEC 61800-9-2:2023)
• Effective Date: 18-Feb-2025

Overview

EN IEC 61800-9-2:2025/prA1:2025 is an amendment to Part 9-2 of the IEC/EN 61800 series addressing ecodesign for motor systems within Adjustable Speed Electrical Power Drive Systems (PDS). This Committee Draft for Vote (CDV) proposes technical corrections to calculations for correction factors, replacing several formulas and the correction-factor table to improve consistency in energy-efficiency determination and IE class assignment.

Key administrative notes from the draft: the amendment is prepared under IEC SC 22G, submitted for CENELEC parallel voting, and carries a proposed stability date of 2027. The CDV stage indicates the document is still under study and subject to change.

Key Topics

• Formula updates: The draft replaces formulas referenced as (15) through (18) with corrected expressions for modified reference losses used in IE classification and loss comparison.
• Correction-factor table: Table 8 is replaced by a new Table 1 that lists correction factors (cf,i) for different converter and drive characteristics for CDM, SDIM and SDOM topologies.
• Characteristics covered:
  • THD categories (high, reference, low) for input currents up to harmonic order H = 40
  • Regenerative capability (motoring-mode losses considered when applicable)
  • Drive-filter (DF) thresholds (DF ≤ 10 % examples such as sinewave output filters)
  • Input-voltage classes (single-phase and three-phase rated voltage thresholds at ≤ 250 V)
  • External cooling (impact on correction factors when cooling power is supplied separately)
• Application rules: Applicable correction factors are those reflecting the characteristics of the Equipment Under Test (EUT); these are used to modify reference losses before comparing converter losses for IE class determination.

Applications

This amendment is directly relevant to:

• Manufacturers of CDM (converter-driven modules), SDIM (single-drive inverter modules) and SDOM (single-drive output modules) for validating declared efficiencies and IE classes.
• Test laboratories performing loss measurement and energy-efficiency classification under IEC/EN 61800-9-2.
• Energy auditors and compliance teams applying ecodesign requirements to motor systems and PDS installations.

Practical benefits include more consistent IE-class outcomes, clearer guidance on when to apply specific correction factors, and improved comparability of loss assessments across product topologies.

Related Standards

• IEC/EN 61800-9-2 (Part 9-2: Ecodesign for motor systems)
• Project reference: IEC CDV 61800-9-2/AMD1 ED2
• Committees of interest: IEC SC 22G (Adjustable speed PDS), TC 2, SC 121A and CENELEC parallel voting groups

For implementation, consult the full CDV text and Annex examples (where provided) and note that this draft remains subject to revision during the voting stage.

Standards Content (Sample)

SLOVENSKI STANDARD
01-maj-2026
Električni pogonski sistemi z nastavljivo hitrostjo (PDS) - 9-2. del: Okoljsko
primerna zasnova za motorne sisteme - Določitev in klasifikacija energijske
učinkovitosti - Dopolnilo A1 (IEC 61800-9-2:2023/AMD1:2025)
Adjustable speed electrical power drive systems (PDS) - Part 9-2: Ecodesign for motor
systems - Energy efficiency determination and classification (IEC 61800-9-
2:2023/AMD1:2025)
Drehzahlveränderbare elektrische Antriebe - Teil 9-2: Ökodesign für Motorsysteme -
Energieeffizienzbestimmung und -klassifizierung (IEC 61800-9-2:2023/AMD1:2025)
Entraînements électriques de puissance (PDS) à vitesse variable - Partie 9-2:
Écoconception des systèmes moteurs - Détermination et classification de l'efficacité
énergétique (IEC 61800-9-2:2023/AMD1:2025)
Ta slovenski standard je istoveten z: EN IEC 61800-9-2:2025/A1:2026
ICS:
27.015 Energijska učinkovitost. Energy efficiency. Energy
Ohranjanje energije na conservation in general
splošno
29.200 Usmerniki. Pretvorniki. Rectifiers. Convertors.
Stabilizirano električno Stabilized power supply
napajanje
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN IEC 61800-9-2:2025/A1

NORME EUROPÉENNE
EUROPÄISCHE NORM February 2026
ICS 29.130.01; 29.160.30; 29.200

English Version
Adjustable speed electrical power drive systems (PDS) -
Part 9-2: Ecodesign for motor systems - Energy efficiency
determination and classification
(IEC 61800-9-2:2023/AMD1:2025)
Entraînements électriques de puissance (PDS) à vitesse Drehzahlveränderbare elektrische Antriebe - Teil 9-2:
variable - Partie 9-2: Écoconception des systèmes moteurs Ökodesign für Motorsysteme - Energieeffizienzbestimmung
- Détermination et classification de l'efficacité énergétique und -klassifizierung
(IEC 61800-9-2:2023/AMD1:2025) (IEC 61800-9-2:2023/AMD1:2025)
This amendment A1 modifies the European Standard EN IEC 61800-9-2:2025; it was approved by CENELEC on 2026-01-27. CENELEC
members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this amendment the
status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC
Management Centre or to any CENELEC member.
This amendment exists in three official versions (English, French, German). A version in any other language made by translation under the
responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the same status as
the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Türkiye and the United Kingdom.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2026 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 61800-9-2:2025/A1:2026 E

European foreword
The text of document 22G/522A/CDV, future edition 2 of IEC 61800-9-2/AMD1, prepared by SC 22G
"Adjustable speed electric power drive systems (PDS)" of IEC/TC 22 "Power electronic systems and
equipment" was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2027-02-28
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2029-02-28
document have to be withdrawn
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
Any feedback and questions on this document should be directed to the users’ national committee. A
complete listing of these bodies can be found on the CENELEC website.
Endorsement notice
The text of the International Standard IEC 61800-9-2:2023/AMD1:2025 was approved by CENELEC
as a European Standard without any modification.

IEC 61800-9-2 ®
Edition 2.0 2025-12
INTERNATIONAL
STANDARD
AMENDMENT 1
Adjustable speed electrical power drive systems (PDS) -
Part 9-2: Ecodesign for motor systems - Energy efficiency determination and
classification
ICS 29.130.01; 29.160.30; 29.200 ISBN 978-2-8327-0950-4

IEC 61800-9-2:2023-10/AMD1:2025-12(en)

IEC 61800-9-2:2023/AMD1:2025 © IEC 2025
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
Adjustable speed electrical power drive systems (PDS) -
Part 9-2: Ecodesign for motor systems -
Energy efficiency determination and classification

AMENDMENT 1
FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international
co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and
in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports,
Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their
preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with
may participate in this preparatory work. International, governmental and non-governmental organizations liaising
with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for
Standardization (ISO) in accordance with conditions determined by agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that
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