BS EN IEC 60947-4-1:2025 - Low-voltage Switchgear and Controlgear

Introducing the latest standard in low-voltage switchgear and controlgear, the BS EN IEC 60947-4-1:2025. This comprehensive document is essential for professionals in the electrical engineering field, providing detailed guidelines and specifications for electromechanical contactors and motor-starters. Released on September 9, 2025, this standard is the definitive guide for ensuring safety, reliability, and efficiency in electrical installations.

Key Features and Benefits

The BS EN IEC 60947-4-1:2025 standard is a crucial resource for anyone involved in the design, installation, and maintenance of low-voltage electrical systems. Here are some of the key features and benefits:

• Comprehensive Coverage: With 194 pages of detailed information, this standard covers all aspects of electromechanical contactors and motor-starters, ensuring you have the knowledge you need to comply with industry regulations.
• Up-to-date Information: As the latest release in the series, this standard reflects the most current practices and technological advancements in the field.
• International Recognition: The BS EN IEC 60947-4-1:2025 is recognized globally, making it an essential document for international projects and collaborations.
• Enhanced Safety: By adhering to the guidelines set out in this standard, you can ensure the safety and reliability of your electrical systems, reducing the risk of accidents and equipment failure.

Who Should Use This Standard?

This standard is designed for a wide range of professionals in the electrical industry, including:

• Electrical Engineers: Gain a deeper understanding of the specifications and requirements for low-voltage switchgear and controlgear.
• Project Managers: Ensure your projects meet the latest industry standards and regulations.
• Installers and Technicians: Access detailed guidelines to ensure safe and efficient installation and maintenance of electrical systems.
• Compliance Officers: Stay informed about the latest standards to ensure your organization remains compliant with industry regulations.

Technical Specifications

The BS EN IEC 60947-4-1:2025 standard provides detailed technical specifications for electromechanical contactors and motor-starters. These specifications are crucial for ensuring the proper functioning and safety of electrical systems. Key technical details include:

• Standard Number: BS EN IEC 60947-4-1:2025
• ISBN: 978 0 539 21161 0
• Status: Standard

Why Choose BS EN IEC 60947-4-1:2025?

Choosing the BS EN IEC 60947-4-1:2025 standard ensures that you are working with the most up-to-date and comprehensive guidelines available. This standard is an invaluable resource for ensuring the safety, reliability, and efficiency of your electrical systems. By adhering to these guidelines, you can minimize the risk of equipment failure and ensure compliance with international regulations.

Conclusion

The BS EN IEC 60947-4-1:2025 standard is an essential tool for anyone involved in the electrical industry. With its comprehensive coverage, up-to-date information, and international recognition, this standard provides the guidance you need to ensure the safety and reliability of your electrical systems. Whether you are an engineer, project manager, installer, or compliance officer, this standard is a must-have resource for your professional toolkit.

BS EN IEC 60947-4-1:2025

This standard BS EN IEC 60947-4-1:2025 Low-voltage switchgear and controlgear is classified in these ICS categories:

• 29.120.99 Other electrical accessories
• 29.130.20 Low voltage switchgear and controlgear

IEC 60947-4-1:2023 is applicable to the following equipment: - electromechanical contactors and starters including motor protective switching devices (MPSD and IMPSD); - actuators of contactor relays; - contacts dedicated exclusively to the coil circuit of the contactor or the contactor relay; - dedicated accessories (e.g. dedicated wiring, dedicated latch accessory); intended to be connected to distribution circuits, motors circuits and other load circuits, the rated voltage of which does not exceed 1 000 V AC or 1 500 V DC. This fifth edition cancels and replaces the fourth edition published in 2018. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) objective in the scope; b) instantaneous only motor protective switching device IMPSD (3.5.33); c) kinds of equipment (5.2.1); d) methods of overload protection of motors (5.2.6); e) adoption of the AC-7d from IEC 61095:2023 (in 5.4.2); f) separately mounted overload relay of a starter (in 5.7.3 b)); g) starter and contactor suitable for use downstream to basic drive module (6.1.2 w)); h) reference to IEC TS 63058 for environmental aspects (in 6.4); i) wiring subject to movement (in 8.1.3); j) use of voltage transient limiting device (8.1.18); k) accessible parts subject to temperature limits (in 8.2.2.3); l) reference to Annex X of IEC 60947-1:2020 for the co-ordination of MPSD with SCPD (8.2.5.4); m) reference to IEC TR 63216 with different EMC environments (8.3.1); n) reference to IEC TR 63201 for the embedded software design (8.4); o) reference to IEC TS 63208 for cybersecurity aspects (8.5); p) update and completion of the measurement method of the power consumption of the electromagnet (9.3.3.2.1.2); q) update of Annex C including rational about AC-3e; r) determination of the critical load current for photovoltaic applications (M.8.7).