IEC 61810-3-2015 PDF

Full title and description

Electromechanical elementary relays - Part 3: Relays with forcibly guided (mechanically linked) contacts. Specifies special requirements and tests for elementary relays with forcibly guided (mechanically linked) contacts, to be applied in addition to the general requirements of IEC 61810-1.

Abstract

This standard defines product-specific requirements, test procedures and acceptance criteria for electromechanical elementary relays that incorporate forcibly guided (mechanically linked) contacts. It is intended to ensure reliable operation and safety where mechanically linked contacts are used (for example in safety-related and industrial control applications) and to supplement the general requirements given in IEC 61810-1.

General information

• Status: Published / Current.
• Publication date: 25 February 2015 (edition 1.0).
• Publisher: International Electrotechnical Commission (IEC).
• ICS / categories: 29.120.70 (Relays).
• Edition / version: Edition 1.0 (2015).
• Number of pages: 22 pages.

Scope

IEC 61810-3:2015 applies to elementary electromechanical relays that have forcibly guided (mechanically linked) contacts. It specifies the particular requirements and tests that are additional to IEC 61810-1 (general and safety requirements), covering aspects such as constructional requirements, mechanical linkage behaviour, contact guidance, functional tests and verification procedures used to demonstrate compliance. The standard is used where mechanically linked contacts are required for safety, redundancy or interlocking purposes.

Key topics and requirements

• Definition and classification of relays with forcibly guided (mechanically linked) contacts.
• Additional constructional and design requirements to ensure forced guidance integrity.
• Specific mechanical and electrical test methods (endurance, contact operation, linkage integrity).
• Criteria for acceptance and conformity in addition to IEC 61810-1 general requirements.
• Requirements intended to support safety-related applications (redundancy and predictable contact behavior).

Typical use and users

Manufacturers of electromechanical relays, product designers, test laboratories, certification bodies and engineers responsible for safety-related control systems and industrial automation commonly use this standard. It is referenced when selecting or testing relays that require mechanically linked contacts for safety interlocks, emergency-stop circuits, safety controllers, and other applications where forced contact guidance is required.

Related standards

IEC 61810-1 (Electromechanical elementary relays — Part 1: General and safety requirements) is the general document that IEC 61810-3 supplements. National/adopted versions include EN 61810-3:2015 and other regional adoptions. Associated test-report forms (for certification and IECEE use) include IECEE TRF 61810-3A, which applies to reporting tests against IEC 61810-3:2015.

Keywords

electromechanical relay, elementary relay, forcibly guided contacts, mechanically linked contacts, relay testing, relay safety, IEC 61810 series, relay endurance, contact guidance.

FAQ

Q: What is this standard?

A: IEC 61810-3:2015 is Part 3 of the IEC 61810 series, titled "Electromechanical elementary relays - Part 3: Relays with forcibly guided (mechanically linked) contacts", setting out specific requirements and tests for relays with mechanically linked contacts.

Q: What does it cover?

A: It covers additional design, construction and test requirements for relays whose contacts are mechanically linked (forcibly guided), plus the relevant acceptance criteria and test methods to verify linkage integrity and predictable contact behaviour. These requirements supplement the general requirements in IEC 61810-1.

Q: Who typically uses it?

A: Relay manufacturers, product designers, test houses, certification bodies and system engineers working on industrial control, safety circuits and applications that require forced contact guidance.

Q: Is it current or superseded?

A: As published on 25 February 2015 (Edition 1.0) IEC 61810-3:2015 is the current Part 3 text; the IEC webstore lists a stability date through 2026. Users should check for any amendments, corrigenda or newer editions before applying the standard in a compliance or certification context.

Q: Is it part of a series?

A: Yes — it is part of the IEC 61810 series for electromechanical elementary relays. Part 1 contains general and safety requirements; Part 3 provides specific additional requirements for mechanically linked contacts. National adoptions as EN 61810-3:2015 and similar are common.

Q: What are the key keywords?

A: Forcibly guided contacts; mechanically linked contacts; electromechanical relays; relay tests; relay safety; IEC 61810; relay endurance.