Hager and Vaillant UK have launched a new range of consumer units for Vaillant air source heat pumps (ASHPs) in the UK, setting a new benchmark for installation safety and ease.

Innovation through collaboration

As the electrification of heating accelerates across the UK and Europe, ASHPs are taking centre stage in the journey to net-zero. However, systems equipped with integrated inverter technology can generate smooth DC residual currents and high-frequency leakage currents – both of which can trigger unnecessary RCD tripping and system downtime.

To address this challenge, Hager has developed a new Type B HP RCCB (Residual Current Circuit Breaker), specially engineered to detect smooth DC leakage currents and function at frequencies greater than 20 kHz, ensuring a minimum tripping threshold of 150 mA for frequencies above 1 kHz. This cutting-edge device is a key component in the new consumer units, co-developed with Vaillant and available across the UK since August.

A new standard in electrical protection

The new consumer units are fully tested and validated for use with Vaillant ASHPs. Designed to streamline installation and reduce on-site decision-making, the solution also improves safety, shortens installation time, and prevents downtime caused by incompatible RCDs.

“Hager’s deep understanding of electrical protection and Vaillant’s leadership in ASHP technology made this collaboration a natural fit,” said Mark Kimberley, UK Market Manager at Hager. “By aligning our product development with Vaillant’s systems, we are simplifying installations for contractors and safeguarding customers with best-in-class protection.”

“This collaboration ensures our ASHP systems are installed with the highest level of electrical protection,” said Paul Honeyman, UK Head of Product Management at Vaillant UK. “By working closely with Hager, we’re giving installers the confidence to deliver safe, reliable, and compliant heat pump systems every time.”

Driving the transition together

Both companies share a common vision: accelerating the transition to low-carbon technologies while upholding the highest standards of safety, quality, and engineering excellence.

“This collaboration is more than a product launch, it’s a statement of intent,” said Kimberley. “As two companies with strong roots in innovation, we’re committed to setting new standards in the integration of electrical and heating technologies. Together, we’re enabling a more sustainable and safer future for homeowners across the UK and beyond.”