Danfoss ABN-FBH Actuator 230V NO, 54 m

Danfoss ABN-FBH Actuator 230V NO – Motorised Valve Actuator for Heating Systems

The Danfoss ABN-FBH is a motorised valve actuator designed for open-loop control of heating system valves. It operates on 230V AC with a normally open (NO) switching function and supports both on/off and PWM modulation for precise flow regulation.

• 230V AC supply with normally open (NO) switching — energise to open, de-energise to close
• PWM modulation capability enables proportional flow control for improved thermal comfort
• 4mm connection thread fits standard radiator and underfloor heating valves
• IP54 ingress protection rating ensures reliable operation in damp utility spaces

What makes the ABN-FBH stand out

As a stand-alone actuator with no system communication protocol dependency, the ABN-FBH integrates directly into existing heating circuits without requiring a central controller or bus system. Its compact form factor and 1.0 m cable length provide flexible installation options near the valve actuator head.

Ideal for

Underfloor heating and radiator systems in residential and commercial buildings where a simple, reliable on/off or modulated valve actuator is needed. Suitable for new installations and retrofit projects in existing heating circuits.

Application of Danfoss ABN-FBH

Connect the actuator to a 230V AC power supply and the valve motor leads. The actuator switches the valve open or closed based on the control signal — use on/off mode for basic zone control or PWM mode for proportional regulation. Mount the unit in a dry, accessible location within the heating circuit.