IEC 62040-2-2016 PDF

Full title and description

IEC 62040-2:2016 — Uninterruptible power systems (UPS) — Part 2: Electromagnetic compatibility (EMC) requirements. This is a type-test product standard that defines emission limits, immunity levels, test methods and performance criteria for UPS equipment (movable, stationary, fixed or built-in, pluggable and permanently connected) used on low-voltage distribution systems and incorporating an energy storage device. The edition includes updates to network port limits, category limits and clarifications to immunity and test configurations.

Abstract

This standard establishes EMC requirements for UPS to ensure they do not unduly interfere with radio and other equipment and that they maintain acceptable performance when subject to electromagnetic disturbances. It specifies limits, test setups and performance criteria for emissions and immunity, and is aligned with applicable IEC EMC standards while adding UPS-specific provisions. An interpretation sheet published in 2018 clarifies selected items in the 2016 edition.

General information

• Status: Published (active international standard; edition in force with interpretation sheet).
• Publication date: 25 November 2016.
• Publisher: International Electrotechnical Commission (IEC).
• ICS / categories: 17.220; 29.200; 33.100.10 (electric/magnetic measurements; rectifiers/converters/stabilized power supply; EMC emission).
• Edition / version: Edition 3.0 (2016).
• Number of pages: 92 pages (base publication).

Scope

The standard applies to UPS equipment delivering output voltages with peak voltages not exceeding 1 500 V DC or 1 000 V AC, intended for residential, commercial, light industrial or industrial environments. It covers emissions from the UPS, immunity of the UPS to specified disturbances, test configurations and performance criteria, but does not cover EMC phenomena produced by external loads or systems outside the UPS unless explicitly described in the immunity tests. The document is intended for conformity assessment of UPS categories defined within the standard (C1, C2, C3).

Key topics and requirements

• Defined emission limits for conducted and radiated disturbances from UPS across relevant frequency ranges.
• Specified immunity tests (electrostatic discharge, radiated RF, conducted RF, surge, EFT/burst, voltage dips and interruptions) with performance criteria for acceptable UPS behavior during and after disturbance.
• Test configurations for different UPS categories and connection/network port conditions, including network port limits and guidance on test setups.
• Classification of UPS into EMC categories (e.g., C1, C2, C3) with corresponding limits and quasi-peak adjustments for certain categories.
• Additional UPS-specific requirements consistent with IEC EMC standards and clarifications provided via an interpretation sheet (2018).

Typical use and users

Manufacturers of UPS equipment, EMC test laboratories, compliance and certification bodies, product safety and EMC engineers, procurement teams specifying UPS for commercial, industrial or critical infrastructure installations, and regulatory authorities reviewing EMC conformity for market access. The standard is used to design, test and certify UPS so they meet recognized EMC performance levels for their intended installation environments.

Related standards

IEC 62040 is a multi‑part series; related parts include IEC 62040-1 (safety requirements) and other normative EMC and product standards referenced for test methods and limits. Regional/adopted versions exist (for example EN IEC 62040-2:2018 in European adoption), and an interpretation sheet (IEC 62040-2:2016/ISH1:2018) provides clarifications to the 2016 edition.

Keywords

UPS, uninterruptible power system, EMC, electromagnetic compatibility, emissions, immunity, conducted emissions, radiated emissions, surge, EFT, electrostatic discharge, performance criteria, IEC 62040.

FAQ

Q: What is this standard?

A: IEC 62040-2:2016 is the part of the IEC 62040 series that sets electromagnetic compatibility (EMC) requirements — emission limits, immunity tests and performance criteria — for uninterruptible power systems (UPS).

Q: What does it cover?

A: It covers EMC test methods, emission limits and immunity levels for UPS with specified voltage ranges and intended environments (residential, commercial, light industrial, industrial). It defines test configurations, UPS EMC categories and performance criteria, but does not address EMC produced by external loads beyond what is specified in immunity tests.

Q: Who typically uses it?

A: UPS manufacturers, EMC test labs and certification bodies, design and compliance engineers, and procurement or regulatory teams responsible for specifying and verifying EMC conformity of UPS products.

Q: Is it current or superseded?

A: The 2016 edition (Edition 3.0) is the published edition and remains in force; an interpretation sheet (ISH1) was issued in June 2018 to clarify certain points. The IEC record lists a stability date through 2026. Users should check national adoptions (for example EN IEC versions) and any later amendments or revisions before relying on the standard for compliance decisions.

Q: Is it part of a series?

A: Yes — IEC 62040 is a multi-part series addressing UPS; Part 1 covers safety requirements (IEC 62040-1) and other parts address performance, testing and management aspects. Part 2 specifically addresses EMC.

Q: What are the key keywords?

A: UPS, EMC, emissions, immunity, conducted emissions, radiated emissions, surge, EFT/burst, ESD, performance criteria, IEC 62040-2.