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StandardCitation2022

Uninterruptible power systems (UPS) - Part 1: Safety requirements

IEC · IEC TC 22

The safety standard for low-voltage UPS containing an energy storage device, addressing fire, shock, thermal, energy and mechanical hazards.

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Overview

IEC 62040-1 is the safety standard for uninterruptible power systems (UPS) with an energy storage device in low-voltage systems. The version described here is consolidated edition 2.2, merging the 2017 base text with the 2021 and 2022 amendments; it was published on 29 November 2022 and runs to 294 pages. A new edition is in preparation. This page rests on the publisher's public catalogue abstract.

On scope, it covers movable, stationary, fixed or built-in UPS applied in low-voltage distribution systems with port voltages up to 1 000 V AC or 1 500 V DC. Pluggable and permanently connected, single or paralleled units are included. Installation may be in areas accessible to ordinary persons or in restricted access areas.

The aim is to reduce the risks of fire, electric shock, and thermal, energy and mechanical hazards in use and, where stated, during service. The standard is harmonised with the group safety publication IEC 62477-1:2012, and its reference has changed from IEC 60950-1:2005 to that document.

Related documents include IEC 62040-3, IEC 62477-1 and TS EN 62040-1. As a limitation, this is a safety standard; topics such as performance and test method fall under IEC 62040-3.

Key points

  1. Applies to low-voltage UPS that include energy storage.
  2. Covers port voltages up to 1 000 V AC or 1 500 V DC.
  3. Covers installation in areas accessible to ordinary persons or in restricted access areas.
  4. Targets fire, electric shock, thermal, energy and mechanical hazards.
  5. Harmonised with IEC 62477-1:2012; reference changed from IEC 60950-1:2005.
  6. Consolidated edition 2.2 is dated 2022-11-29 and has 294 pages.
  7. Related documents: IEC 62040-3, IEC 62477-1, TS EN 62040-1.

Using it in design

  • In the UPS catalogue, record safety certification (IEC/EN 62040-1), installation location class (restricted access or ordinary-person area) and battery type.
  • Warn when a UPS rated only for restricted access areas is placed in an office or shared space.
  • Assess IEC 62040-3 separately for performance verification.

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Who should read it

Electrical engineers and safety reviewers selecting and placing UPS equipment.

Related standards

  • IEC 62040-3
  • IEC 62477-1
  • TS EN 62040-1

Publication details

Authors
IEC TC 22
Publisher
IEC
Year
2022
Document number
IEC 62040-1:2017+AMD1:2021+AMD2:2022
Document language
English
Source type
Standard
Access
Citation only
Licence
Copyright retained; citation only — the publisher’s terms apply to the original document
Original licence note

Paid standard. Record built only from the publisher's public catalogue abstract and product metadata; full text not redistributed.

Citation

IEC TC 22 (2022). Uninterruptible power systems (UPS) - Part 1: Safety requirements. IEC. IEC 62040-1:2017+AMD1:2021+AMD2:2022. https://webstore.iec.ch/en/publication/80573

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