EN 60061-1:1993/A4:1996

Overview

EN 60061-1:1993/A4:1996 (CLC) is Part 1 of the EN/IEC 60061 series covering lamp caps - the mechanical and electrical fittings at the end of lamps - and their control by gauges to ensure interchangeability and safety. Amendment A4 updates the original 1993 text in line with IEC 60061-1S:1996. The full and updated content of the series is available through the IEC/60061 database or national standards bodies.

Key topics

This part of the standard sets out the framework and requirements for lamp caps, focusing on:

• Interchangeability control - provisions and use of gauges to verify that lamp caps fit intended holders.
• Safety considerations - requirements that reduce electrical and mechanical hazards associated with lamp caps and mating holders.
• Dimensional and construction requirements - normative dimensional references and construction principles to support consistent manufacturing and testing.
• Marking and identification - expectations for clear marking so users and manufacturers can identify cap types and compatibility.
• Testing and conformity - guidance on inspection and measurement procedures using gauges and fit-check methods to ensure compliance.

(Note: the full technical specifications, tables and precise dimensional values are available in the IEC 60061 database or the published EN/Amd A4 document.)

Applications

EN 60061-1:1993/A4:1996 is used across the lighting value chain to ensure safe, interoperable products:

• Manufacturers - design and production of lamps and lamp caps that reliably fit standard holders and meet safety expectations.
• Test laboratories - verify interchangeability and conformity using prescribed gauges and inspection methods.
• Product designers and engineers - ensure mechanical and electrical compatibility when selecting cap types for new luminaires.
• Procurement and compliance teams - reference for acceptance testing, regulatory compliance, and supplier quality control.
• Regulators and certification bodies - assess products against harmonized European/IEC requirements for market access.

Related standards

• IEC/EN 60061 series (lamp caps, holders and gauges) - other parts address lamp holders and additional testing/gauging methods.
• National implementations and amendments (e.g., SIST EN versions) reflect translation and publication in member countries.

For the authoritative, up-to-date technical content (dimensional tables, test procedures and normative text) subscribe to the IEC 60061 database or obtain the official EN/CLC publication from your national standards organization.