Note: this kit includes the standard, tracked changes and expert commentary.
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 60947-1:2020 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.