Uninterruptible power systems (UPS) - Part 2: Electromagnetic compatibility (EMC) requirements

Is intended as a product standard allowing the EMC conformity assessment of products of categories C1, C2 and C3 as defined in this part of EN 62040, before placing them on the market.The requirements have been selected so as to ensure an adequate level of electromagnetic compatibility (EMC) for UPS at public and industrial locations.

Unterbrechungsfreie Stromversorgungssysteme (USV) - Teil 2: Anforderungen an die elektromagnetische Verträglichkeit (EMV)

Alimentations sans interruption (ASI) - Partie 2: Exigences pour la compatibilité électromagnétique (CEM)

Est une norme de produit permettant l'évaluation de conformité CEM des produits de catégories C1, C2 et C3 définis dans la présente partie de la EN 62040, avant leur commercialisation.Les exigences ont été sélectionnées afin d'assurer un niveau de compatibilité électromagnétique (CEM) adéquat pour les ASI destinées à un environnement domestique ou industriel.

Sistemi z neprekinjanim napajanjem - 2. del: Zahteve za elektromagnetno združljivost (EMC) (IEC 62040-2:2005)

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SLOVENSKI SIST EN 62040-2:2006

junij 2006
Sistemi z neprekinjanim napajanjem - 2. del: Zahteve za elektromagnetno
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Uninterruptible power systems (UPS) - Part 2: Electromagnetic compatibility (EMC)
requirements (IEC 62040-2:2005)
29.200; 33.100.01
! "#$%!&!%’()*#+’
EN 62040-2
March 2006
ICS 17.220; 29.200 Supersedes EN 50091-2:1995

English version
Uninterruptible power systems (UPS)
Part 2: Electromagnetic compatibility (EMC) requirements
(IEC 62040-2:2005)
Alimentations sans interruption (ASI) Unterbrechungsfreie
Partie 2: Exigences pour la compatibilité Stromversorgungssysteme (USV)
électromagnétique (CEM) Teil 2: Anforderungen an die
(CEI 62040-2:2005) elektromagnetische Verträglichkeit (EMV)
(IEC 62040-2:2005)
This European Standard was approved by CENELEC on 2005-10-01. CENELEC members are bound to comply
with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard
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 Central Secretariat or to any CENELEC member.

This European Standard 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 Central Secretariat has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Cyprus, the Czech
Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Central Secretariat: rue de Stassart 35, B - 1050 Brussels

© 2006 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 62040-2:2006 E
The text of document 22H/74A/FDIS, future edition 2 of IEC 62040-2, prepared by SC 22H,
Uninterruptible Power Systems (UPS), of IEC TC 22, Power electronic systems and equipment, was
submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 62040-2 on
This European Standard supersedes EN 50091-2:1995 + corrigendum January 1998.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2006-10-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2008-10-01
This European Standard was prepared under a mandate given to CENELEC by the European
Commission and the European Free Trade Association and supports the essential requirements of
Directive 89/336/EEC (see Annex ZZ).
This European Standard makes reference to International Standards. Where the International Standard
referred to has been endorsed as a European Standard or a home-grown European Standard exists, this
European Standard shall be applied instead. Pertinent information can be found on the CENELEC web
Endorsement notice
The text of the International Standard IEC 62040-2:2005 was approved by CENELEC as a European
Standard without any modification.
- 3 - EN 62040-2:2006
Annex ZZ
Coverage of Essential Requirements of EC Directives

This European Standard has been prepared under a mandate given to CENELEC by the European
Commission and the European Free Trade Association and within its scope the standard covers all
relevant essentiel requirements as given in the EC Directive 89/336/EEC.

Compliance with this standard provides one means of conformity with the specified essential
requirements of the Directive concerned.

WARNING: Other requirements and other EC Directives may be applicable to the products falling within
the scope of this standard.
Deuxième édition
Second edition
Alimentations sans interruption (ASI) –
Partie 2:
Exigences pour la compatibilité
électromagnétique (CEM)
Uninterruptible power systems (UPS) –
Part 2:
Electromagnetic compatibility (EMC)
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électronique ou mécanique, y compris la photocopie et les photocopying and microfilm, without permission in writing from
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Telephone: +41 22 919 02 11 Telefax: +41 22 919 03 00 E-mail: inmail@iec.ch Web: www.iec.ch
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62040-2  IEC:2005 – 3 –

1 Scope.11
2 Normative references.13
3 Terms and definitions .15
4 Environment .15
5 UPS Categories .15
5.1 UPS of category C1 .15
5.2 UPS of category C2 .17
5.3 UPS of category C3 .17
5.4 UPS of category C4 .17
5.5 Categories and environment .17
6 Emission.19
6.1 General requirements .19
6.2 General measurement conditions.19
6.3 Conducted emissions.21
6.4 Radiated emissions .25
7 Immunity.27
7.1 General requirements and performance criteria.27
7.2 Basic immunity requirements – High-frequency disturbances.29
7.3 Immunity to low-frequency signals.33
7.4 Immunity to power-frequency magnetic field.33
7.5 Immunity to voltage dips, short interruptions and voltage variations .33

Annex A (normative) Electromagnetic emission – Test methods.35
Annex B (informative) Electromagnetic emission limits and measurement methods of
magnetic field – H field.65
Annex C (informative) Electromagnetic emission – Limits of signal ports.69
Annex D (normative) Electromagnetic immunity – Test methods .71
Annex E (informative) User installation testing.77

Figure 1 – Examples of ports.15
Figure A.1 – Circuit for disturbance voltage measurements on mains supply or UPS
output .51
Figure A.2 – Minimum alternative test site .51
Figure A.3 – Set-up for measurement of conducted emission for table-top units.53
Figure A.4 – Test set-up for floor-standing units .53
Figure A.5 – Test configuration for table-top equipment (conducted emission
Figure A.6 – Test configuration for table-top equipment (conducted emission
measurement) – Plan view .57
Figure A.7 – Alternative test configuration for table-top equipment (conducted emission
measurement) – Plan view .57

62040-2  IEC:2005 – 5 –
Figure A.8 – Test configuration for floor-standing equipment (conducted emission
Figure A.9 – Test configuration for table-top equipment (radiated emission requirement) .61
Figure A.10 – Test configuration for floor-standing equipment (radiated emission
Figure B.1 – Test set-up for measuring radiated disturbances.65
Figure D.2 – Phase unbalance.75

Table 1 – Limits of mains terminal interference voltage frequency range 0,15 MHz to
30 MHz for category C1 UPS and category C2 UPS equipment.23
Table 2 – Limits of mains terminal interference voltage frequency range 0,15 MHz to
30 MHz for Category C3 UPS equipment .23
Table 3 – Limits of radiated emission in the frequency range 30 MHz to 1 000 MHz .25
Table 4 – Performance criteria for immunity tests .27
Table 5 – Minimum immunity requirements for UPS intended for UPS of category C1 .29
Table 6 – Minimum immunity requirements for UPS of category C2 and C3.31
Table B.1 – UPS which has a rated output current less than, or equal to, 16 A .67
Table B.2 – UPS which has a rated output current greater than 16A.67
Table C.1 – Limits of signal ports .69

62040-2  IEC:2005 – 7 –

Part 2: Electromagnetic compatibility (EMC) requirements

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