Understanding BS EN IEC 62561
28-11-2025

Understanding BS EN IEC 62561 is crucial in ensuring you meet the requirements for metallic connection components. Not only this, but failing to comply has knock-on effects when it comes to meeting other standards and their requirements - such as BS EN IEC 62305!
Here are some of the key details you need to keep in mind:
- Components must undergo corrosion and environmental resistance tests including salt mist tests (cyclic, sodium chloride solution) and humid sulphurous atmosphere tests (aligned with ISO 22479:2019) - these tests simulate aggressive environments to ensure long-term durability
- Clamps must have sufficient Class H (Heavy Duty) and Class N (Normal Duty) ratings
- It is crucial to understand that meeting this standard is a requirement in order for your completed system to comply with BS EN IEC 62305
Getting to grips with the various regulations that underpin our industry can undoubtably be challenging: this is where DEHN UK step in to make things simple.
With our highly-experienced technical staff ready to deliver bespoke CPD tailored to your needs, why not let us help you?