Technological Innovation

What is BS EN 61439-2:2011?

BS EN 61439-2:2011 is an international standard that applies to low-voltage switchgear and controlgear assemblies. It specifies the construction and performance requirements of these assemblies and provides guidelines for testing and verification. This standard is crucial in ensuring the safe operation and protection of electrical installations.

The Importance of BS EN 61439-2:2011

Compliance with BS EN 61439-2:2011 is vital for electrical manufacturers and installers. This standard sets the benchmark for designing and manufacturing safe and reliable switchgear and controlgear assemblies. By adhering to its requirements, manufacturers can ensure that their products meet strict quality standards and provide maximum protection for users.

BS EN 61439-2:2011 emphasizes the importance of proper design and construction of these assemblies. It covers aspects such as temperature rises, dielectric properties, short-circuit withstand capabilities, and clearances/creepage distances. These parameters help determine if an assembly is capable of handling abnormal conditions, ensuring the safety of both personnel and equipment.

Testing and Verification

BS EN 61439-2:2011 also outlines the testing and verification procedures that should be followed to validate the performance of the assemblies. These tests include temperature rise tests, temperature and humidity cycling tests, and mechanical endurance tests. Conducting these tests ensures that the assemblies are capable of withstanding real-world operating conditions and performing reliably over a long period.

Furthermore, compliance with this standard increases transparency in the market. Customers can trust that products labeled as compliant with BS EN 61439-2:2011 have gone through rigorous testing and adhere to high-quality standards. This helps reduce the risk of purchasing substandard or unsafe products, giving peace of mind to end-users.


BS EN 61439-2:2011 is a crucial international standard that sets the requirements for low-voltage switchgear and controlgear assemblies. Compliance with this standard ensures the safe operation of electrical installations, protecting both personnel and equipment. It also provides transparency in the market, allowing customers to make informed decisions when purchasing these assemblies. As such, it is essential for manufacturers and installers to understand and adhere to BS EN 61439-2:2011 to ensure the highest level of safety and quality.



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