BELIMO Actuator: Dampers, On/Off, Spring Return, 22 in-lb, 100 to 240V AC, Hardwired

The BELIMO TFB120-S is a fail-safe spring-return damper actuator used in HVAC systems to control air dampers in building automation applications. It provides on/off control with 22 in-lb torque over a 95° stroke, ensuring reliable damper positioning and fail-safe closure during power loss.

The BELIMO TFB120-S operates on 100 to 240V AC with a 2.5W power rating. It delivers 22 in-lb torque over a 95° stroke with CW/CCW shaft rotation. The actuator features hardwired electrical connection, an auxiliary switch, and NEMA 2 / IP42 enclosure rating. It is compatible with building automation systems.

You can source the BELIMO TFB120-S through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time; we provide reliable sourcing for this fail-safe damper actuator.

Mount the BELIMO TFB120-S directly onto the damper shaft using the provided bracket, ensuring CW/CCW rotation matches damper direction. Connect hardwired power (100 to 240V AC) per wiring diagram. Test spring-return function by removing power; the actuator should return to fail-safe position. Refer to BELIMO manual for torque and stroke adjustments.