Belimo EFB120-S N4 Actuator R-448A and 90-second durations based on

and 90-second durations based on your specific boiler or furnace requirements

Does it support auxiliary contact integration

The totally enclosed enclosure (TE) protects internal components from airborne contaminants and moisture

making it suitable for standard domestic hot water and low-pressure steam return lines

Belimo EFB120-S N4 Actuator R-448A and 90-second durations based onThe Belimo EFB120 S N4 is a heavy duty spring return actuator designed for on off control in demanding HVAC and industrial environments. This unit delivers 270 in lb of torque, providing reliable fail safe operation for large dampers and valve assemblies during power loss. Integrated with a NEMA 4 (IP66) enclosure, it is engineered to withstand harsh outdoor conditions, preventing moisture ingress and corrosion. Operating on a 120V AC power supply, it