IEC 61811-1-2025 PDF

Full title and description

IEC 61811-1:2015+AMD1:2025 — Electromechanical telecom elementary relays of assessed quality — Part 1: Generic specification and blank detail specification. This consolidated/updated publication combines the 2015 base edition with the 2025 amendment(s) to provide a single generic specification and blank detail-specification template for electromechanical elementary relays intended for telecommunication and related applications.

Abstract

This standard gives the generic specification framework and the blank detail-specification format to be used when specifying electromechanical telecom elementary relays of assessed quality. It selects appropriate test methods (derived where applicable from the IEC 61810 family and other references), defines basic test schedules to be used in detail specifications, and consolidates relevant updates introduced by the 2025 amendment(s). The consolidated edition clarifies requirements and reference updates to align relay definitions, tests and documentation for telecom use and related industrial applications.

General information

• Status: Published / Consolidated edition (base edition 2015 with 2025 amendment).
• Publication date: 15 December 2025 (consolidated edition; amendment circulated during 2025 voting period).
• Publisher: International Electrotechnical Commission (IEC).
• ICS / categories: 29.120.70 — Relays.
• Edition / version: Edition 2.x (consolidated edition, incorporating Amendment 1 — 2025; see consolidated IEC 61811-1:2015+AMD1:2025).
• Number of pages: Consolidated publication: approximately 108 pages (consolidated CSV); amendment-only documents are shorter (typically 2–6 pages depending on format).

Scope

Applies to electromechanical telecom elementary relays of assessed quality. The document provides the generic specification and a blank detail-specification template from which product-specific detail specifications may be prepared. It identifies the relevant test methods and basic test schedules to be used in those detail specifications (selecting and adapting methods from the IEC 61810 family and other referenced standards) and is intended primarily for relays used in telecommunications but also covers those suited to particular industrial or other applications.

Key topics and requirements

• Generic specification structure and mandatory detail-specification fields (blank detail-specification template).
• Selection of applicable test methods and basic test schedules for electromechanical telecom elementary relays.
• Updated normative references and alignment with IEC 61810 series test methods.
• Performance and reliability requirements relevant to telecom applications (electrical, mechanical and environmental tests as selected in detail specifications).
• Guidance for preparing product-specific detail specifications and documenting assessed-quality arrangements.

Typical use and users

Used by relay manufacturers, product and test engineers, quality and compliance teams, procurement/specification authors in telecommunications equipment vendors, and test laboratories preparing or evaluating detail specifications and conformity to assessed-quality arrangements. It is also used where electromechanical elementary relays are applied in industrial control or other sectors that require telecom-grade relay specification templates and test schedules.

Related standards

Typically used alongside the IEC 61810 family (electromechanical elementary relays — general test methods and product parts), IEC 60068 series (environmental testing), relevant product-safety and EMC standards (as applicable), and national/adopted versions (EN/CENELEC or national adoptions and amendments). The 2025 amendment consolidates references to ensure consistency across these documents.

Keywords

electromechanical relay; telecom relay; elementary relay; generic specification; detail specification; test schedule; assessed quality; IEC 61811; IEC 61810; relay requirements.

FAQ

Q: What is this standard?

A: It is the IEC generic specification (with blank detail-specification template) for electromechanical telecom elementary relays of assessed quality, consolidated with the 2025 amendment(s) to update references and requirements.

Q: What does it cover?

A: It covers the structure and content of a generic specification and of blank detail specifications for electromechanical telecom elementary relays, defines the selection of test methods and basic test schedules to be used in product detail specifications, and consolidates updates introduced in 2025.

Q: Who typically uses it?

A: Relay manufacturers, telecom equipment designers and procurement/specification writers, conformity assessment bodies, and test laboratories.

Q: Is it current or superseded?

A: The consolidated edition (IEC 61811-1:2015+AMD1:2025) is the current consolidated publication that incorporates the 2025 amendment(s) to the 2015 base text; national adoptions or further amendments may follow in member bodies.

Q: Is it part of a series?

A: Yes — it is part of the IEC 61811 series addressing electromechanical telecom relays and is closely related to the IEC 61810 family of standards for electromechanical elementary relays (test methods and product parts).

Q: What are the key keywords?

A: electromechanical relay, telecom relay, elementary relay, generic specification, detail specification, assessed quality, test schedules.