What is BS EN 60947-1:2021 about?

This is the first in a multi-part European standard on low-voltage switchgear and controlgear. BS EN 60947-1:2021 covers general rules.

Who is BS EN 60947-1:2021 for?

Electrical equipment manufacturers
Test houses
Stockists
Electrical design engineers

Why should you use BS EN 60947-1:2021?

This is the definitive international standard for controlgear components. It gives general rules and common safety requirements for low-voltage switchgear and controlgear, and provides the essential constructional, performance and test requirements to enable the design, evaluation and safe operation of low voltage switchgear.

Designed to be used with a series of sub-parts dedicated to particular devices, the standard has been fully revised to reflect advances in digital interfaces and equipment.

BS EN 60947-1:2021 covers:

Definitions
Characteristics
Information supplied with the equipment
Normal service, mounting and transport conditions, decommissioning and dismantling
Constructional and performance requirements
Verification of characteristics and performance
Energy efficiency aspects
Environmental aspects

What’s new about BS EN 60947-1:2021?

Improvements to dc testing procedure
Update of EMC tests
Deletion of Annex B [service in abnormal conditions]
Update of requirements for environmental tests
Improvement of Annex R (new examples)
Deletion of digital input type 2, and introduction of type 3 in Annex S
Example for materials declaration (Annex W)
New Annex X (Co-ordination between short-circuit protective devices associated in the same circuit) introduced.

BS EN IEC 60947-1:2021-TC ExComm - SET

Low-voltage switchgear and controlgear - General rules

Current

Published:

8 Mar 2021