TFB24-3 | Damper Actuator | 22 in-lb | Spg Rtn | 24V | On/Off/Floating Point | Belimo
Get your Special Pricing!
Log In / Create an Account for the LOWEST PRICING on our most Popular Brands!
Brand: BelimoSKU: TFB24-3
List Price
Availability: IN STOCK
Contact us for price breaks on large quantities!
This item ships FREE*
*Free shipping applies within the continental US and weighing less than 50 lbs.
Shipping and Returns Terms

Speak With a Technical Expert

Call (847) 773-1023

Hours: 9am - 5pm CDT M-F

TFB24-3 | Damper Actuator | 22 in-lb | Spg Rtn | 24V | On/Off/Floating Point | Belimo

Belimo | TFB24-3
The photo is for representation purposes only and may not be a photo of product being purchased.
Search products similar to TFB24-3

Documents and manuals

Belimo TFB24-3 Documents


Details for TFB24-3

Damper Actuator | 22 in-lb | Spg Rtn | 24V | On/Off/Floating Point

Damper Actuator | 22 in-lb | Spg Rtn | 24V | On/Off/Floating Point


For modulation or On/Off, fail-safe control of dampers in HVAC systems. Actuator sizing should be done in accordance with the damper manufacturer’s specifications. The actuator is mounted directly to a damper shaft from 1/4” up to 1/2” in diameter by means of its universal clamp, 1/2” shaft centered at delivery. A crank arm and several mounting brackets are available for applications where the actuator cannot be direct coupled to the damper shaft. Control is floating point from a triac or relay, or On/Off from an auxiliary contact on a fan motor contactor, controller or manual switch.


The TF series actuators provide true spring return operation for reliable fail-safe application and positive close-off on air tight dampers. The spring return system provides consistent torque to the damper with, and without, power applied to the actuator. The TF series provides 95° of rotation and is provided with a graduated position indicator showing 0 to 95°. The TF uses a brushless DC motor which is controlled by an Application Specific Integrated Circuit (ASIC) and a microprocessor. The microprocessor provides the intelligence to the ASIC to provide a constant rotation rate and to know the actuator’s exact fail-safe position. The ASIC monitors and controls the brushless DC motor’s rotation and provides a digital rotation sensing function to prevent damage to the actuator in a stall condition. The actuator may be stalled anywhere in its normal rotation without the need of mechanical end switches. Power consumption is reduced in holding mode.

Safety Note: Screw a conduit fitting into the actuator’s bushing. Jacket the actuator’s input and output wiring with suitable flexible conduit. Properly terminate the conduit in a suitable junction box.


Actuator Type
Spring return
Angle of Rotation
Control Type
Degree of Protection
IP42 NEMA 2 UL Enclosure Type 2
Direction of Rotation (Fail-Safe)
Reversible with cw/ccw mounting
Electrical Connection
Power Consumption (Holding)
1 W
Power Consumption (Running)
2.5 W
Running Time (Fail-safe)
<25 s
Running Time (Motor)
95 s /
Safety Function
22 in-lb [2.5 Nm]
Voltage AC/DC
AC/DC 24 V


People Also Searched

Belimo TFB24-3
TFB24 3
Belimo TFB24 3
Belimo TFB243
TFB24-3 price
Belimo TFB24-3 price
TFB24 3 price
TFB243 price
Belimo TFB24 3 price
Belimo TFB243 price