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BELIMO Damper Actuator: Dampers, On/Off, Spring Return, 22 in-lb, 100 to 240V AC - Fail-Safe Actuators with Spring Return
BELIMOFail-Safe Actuators with Spring Return

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

The BELIMO TFB120 is a fail-safe damper actuator with spring return, operating in on/off mode. It accepts 100 to 240V AC input, delivers 5VA power, and features a 0 to 95° stroke with CW/CCW shaft rotation for 1/4"…

SKU 3G-OTH-67110

Brand
BELIMO
Item
Damper Actuator: Dampers, On/Off, Spring Return, 22 in-lb, 100 to 240V AC
Category
Fail-Safe Actuators with Spring Return
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Technical Specifications

BELIMO
Manufacturer Part Number
TFB120
Type
On/Off, Spring Return, 22 in-lb, NEMA 2 / IP54
AC
100 to 240V
Shaft Type
1/4" to 1/2"
Power Rating
5VA
Input Voltage
100 to 240V AC
Output Signal
1 Auxiliary Switch
Plenum Rating
Plenum Rated
Stroke Degree
0 to 95°
Shaft Rotation
CW/CCW
Auxiliary Switch Included
Yes
Electrical Connection Type
Hardwired
For Use With Building Automation Systems
Not Building Automation System Compatible
View Full Spec Sheet

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BELIMO Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The BELIMO TFB120 is a fail-safe damper actuator with spring return, operating in on/off mode. It accepts 100 to 240V AC input, delivers 5VA power, and features a 0 to 95° stroke with CW/CCW shaft rotation for 1/4" to 1/2" shafts. This plenum-rated actuator includes one auxiliary switch and is hardwired, but is not compatible with building automation systems.

Frequently Asked Questions

What is the BELIMO TFB120 damper actuator used for?

The BELIMO TFB120 is a fail-safe damper actuator with spring return, used in HVAC systems to control air dampers in on/off applications. It is plenum rated and suitable for environments requiring NEMA 2 / IP54 protection, such as commercial buildings and industrial ventilation.

What are the specifications of the BELIMO TFB120?

The BELIMO TFB120 operates on 100 to 240V AC input with 5VA power rating. It delivers 22 in-lb torque, 0 to 95° stroke, and accepts 1/4" to 1/2" shafts with CW/CCW rotation. It includes one auxiliary switch, is hardwired, and is not compatible with building automation systems.

Where to buy the BELIMO TFB120 worldwide?

3G Electric supplies the BELIMO TFB120 damper actuator worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time; we source and deliver this fail-safe actuator to any location.

How to install the BELIMO TFB120 damper actuator?

Mount the BELIMO TFB120 directly onto a 1/4" to 1/2" damper shaft using the included hardware. Connect 100 to 240V AC power via hardwiring; the actuator is on/off with spring return. Ensure the stroke is set to 0 to 95° and test CW/CCW rotation before commissioning.

Used in

Common applications for BELIMO
Commercial HVAC damper control — Belimo GMB24-SR proportional actuator for modulating air volume in VAV systems
Hydronic zone temperature regulation — Belimo Z3075Q-J+CQB24-3 3-way zone valve for radiant floor heating loops
Smoke management systems — Belimo TFB24-SR spring return actuator for fire damper closure on power loss
Industrial ventilation balancing — Belimo NMB24-SR non-spring return actuator for large duct dampers in factories
Chilled water valve actuation — Belimo Z2075Q-K+CQB24-3 2-way zone valve for fan coil unit control
Multi-purpose damper control — Belimo LF24-MFT MFT actuator with configurable signal for retrofit projects

BELIMO Products

3G Electric supplies BELIMO fail-safe actuators with spring return. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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