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

Overview

The standard is a type-test EMC product standard for UPS used in residential, commercial, light-industrial or industrial environments. It applies to UPS with port voltages up to 1 500 V DC or 1 000 V AC that include an energy storage device. This record rests on the publisher's public catalogue abstract and product metadata; the full text of the paid standard was not read.

Edition 3 was published on 25 November 2016; it runs to 141 pages including the redline version and includes Interpretation Sheet 1 (2018). According to the abstract, this edition adds network port limits in Tables 1 and 2 and Annex C, changes the quasi-peak limit for category C3 UPS in Table 2, and clarifies immunity performance criteria in Table 4.

For design the significance is that a UPS's EMC category (C1, C2, C3) determines its suitability for an environment. A C3 UPS, suited to industrial settings, may cause electromagnetic interference if placed on a supply shared with residential or light-commercial users without filtering.

Related sources in the record are IEC 62040-1, IEC 62040-3 and TS EN 62040-2. Because the abstract gives no numerical emission limits, the standard itself should be consulted for them.

Key points

1. Type-test EMC product standard for UPS in residential, commercial, light-industrial or industrial environments.
2. Applies to UPS with port voltages up to 1 500 V DC or 1 000 V AC that include an energy storage device.
3. Network port limits added in Tables 1, 2 and Annex C.
4. Quasi-peak limit for category C3 UPS changed in Table 2; immunity performance criteria clarified in Table 4.
5. Edition 3 published 2016-11-25; 141 pages including redline.
6. Interpretation Sheet 1 (2018) is included.
7. Related: IEC 62040-1, IEC 62040-3 and TS EN 62040-2.

Using it in design

• Store the EMC category (C1/C2/C3) in the UPS catalog.
• Warn when a C3 (industrial) UPS is placed on a supply shared with residential or light-commercial users without filtering.
• Check EMC compliance together with the safety (IEC 62040-1) and performance (IEC 62040-3) standards when selecting a UPS.
• Consider the network port limits when designing UPS monitoring and communication links.

Who should read it

Engineers selecting UPS and designing electrical installations, and teams checking product compliance.

Related standards

• IEC 62040-1
• IEC 62040-3
• TS EN 62040-2

Publication details

Authors

IEC TC 22

Publisher

IEC

Year

2016

Document number

IEC 62040-2:2016

Document language

English

Source type

Standard

Access

Citation only

Licence

Copyright retained; citation only — the publisher’s terms apply to the original document

Citation