Belimo TFRB24-SR Spring-Return ActuatorBelimo TFRB24 SR is a spring return actuator engineered for reliable damper control in HVAC systems. The Belimo TFRB24 SR delivers 22 in lbs of torque and accepts flexible control inputs, including 2 10 VDC or 4 20 mA, allowing seamless integration with modern building automation. This compact 24V actuator is designed for precise positioning and dependable performance. Featuring a spring return design, the device moves to a safe, closed position on

ballast up to 480 VAC

Heavy-duty

Durable construction: Rugged coil and seals for industrial use

Installation: Designed for easy swap with standard boiler service steps

Pressure ratings vary by media: Air/Inert Gas up to 50–200 psi AC / 2–125 psi DC

and the package includes a switching sub-base for easy wiring and quick setup

delivering steady hot water in Boilermate and hot water maker systems

This versatile component is ideal for maintenance

Horsepower: 1/25 HP

Engineered to switch and regulate fans with precision

Perfect for routine maintenance and field repairs

Operation: Direct Acting / Electrically / Piloted