.svg?v=180920048278408794651776809924){kind=small}
Belimo TFB24-MFT-S 24V Spring-Return Programmable Damper Actuator
- Regular price
- $422.00
- Sale price
- $422.00
- Regular price
-
Couldn't load pickup availability
Product Description P/N: TFB24-MFT-S
Description
The Belimo TFB24-MFT-S is a compact spring-return damper actuator for small commercial HVAC dampers requiring fail-safe positioning. It operates on 24 VAC/DC, provides 22 in-lb [2.5 Nm] of torque, and uses programmable MFT control with a default 2–10 VDC modulating signal.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Belimo |
| Category | HVAC Controls |
| Part Number | TFB24-MFT-S |
| Subcategory | Damper Actuator |
| Actuator Type | Spring-Return (Fail-Safe) |
| Nominal Voltage | AC/DC 24 V |
| Nominal Frequency | 50/60 Hz |
| Control Type | MFT / Programmable |
| Default Control Signal | 2–10 VDC |
| Selectable Control Modes | 2–10 VDC, variable VDC, On/Off, Floating Point, PWM |
| Position Feedback | 2–10 VDC, maximum 0.5 mA |
| Torque | 22 in-lb [2.5 Nm] |
| Power Consumption (Running) | 2.5 W |
| Power Consumption (Holding) | 1 W |
| Power Consumption for Wire Sizing | 4 VA |
| Auxiliary Switches | 1 × SPDT |
| Angle of Rotation | 95° |
| Motor Running Time | 150 s |
| Motor Running Time Range | 75–300 s |
| Fail-Safe Running Time | <25 s |
| Motor Direction | Selectable with switch 0/1 |
| Fail-Safe Direction | Reversible with CW/CCW mounting |
| Shaft Range | 1/4–1/2 in [6.4–12.7 mm] |
| Electrical Connection | 18 GA appliance cable, 3 ft [1 m], 1/2 in NPT conduit connector |
| Overload Protection | Electronic, full 0–95° rotation |
| Electrical Protection | Double insulated, Class 2 |
| Enclosure Rating | NEMA 2 / UL Type 2 |
| Ambient Temperature | -22°F to 122°F [-30°C to 50°C] |
| Agency Listing | cULus |
| Plenum Rating | UL 2043 |
| Weight | 1.8 lbs |
Information About TFB24-MFT-S
The TFB24-MFT-S belongs to Belimo's TF-Series of spring-return actuators designed for direct mounting to small round damper shafts. Its universal clamp accommodates shaft sizes from 1/4 to 1/2 inch, while the fail-safe direction can be reversed through CW/CCW mounting. Multi-Function Technology allows the actuator to be configured for multiple control modes and signal ranges. A built-in SPDT auxiliary switch can provide damper position indication or support equipment interlocking.
Key Features:
- Spring-Return Design: Returns the damper to a fail-safe position when actuator power is interrupted.
- MFT Control: Provides field-programmable operation with 2–10 VDC as the default setting.
- Actuator Torque: Produces 22 in-lb [2.5 Nm] of torque for small damper applications.
- Shaft Compatibility: Directly accommodates round damper shafts from 1/4 to 1/2 inch.
- Adjustable Speed: Provides a motor running time of 75–300 seconds, with 150 seconds specified nominally.
- Auxiliary Switch: Includes one SPDT switch for position signaling or equipment interlock functions.
- Fail-Safe Return: Completes spring return in less than 25 seconds under specified operating conditions.
- Protection: Uses a NEMA 2 and UL Type 2 enclosure with double-insulated Class 2 electrical protection.
The TFB24-MFT-S delivers the reliability and precision required for fail-safe damper positioning and programmable HVAC control applications.
Description
The Belimo TFB24-MFT-S is a compact spring-return damper actuator for small commercial HVAC dampers requiring fail-safe positioning. It operates on 24 VAC/DC, provides 22 in-lb [2.5 Nm] of torque, and uses programmable MFT control with a default 2–10 VDC modulating signal.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Belimo |
| Category | HVAC Controls |
| Part Number | TFB24-MFT-S |
| Subcategory | Damper Actuator |
| Actuator Type | Spring-Return (Fail-Safe) |
| Nominal Voltage | AC/DC 24 V |
| Nominal Frequency | 50/60 Hz |
| Control Type | MFT / Programmable |
| Default Control Signal | 2–10 VDC |
| Selectable Control Modes | 2–10 VDC, variable VDC, On/Off, Floating Point, PWM |
| Position Feedback | 2–10 VDC, maximum 0.5 mA |
| Torque | 22 in-lb [2.5 Nm] |
| Power Consumption (Running) | 2.5 W |
| Power Consumption (Holding) | 1 W |
| Power Consumption for Wire Sizing | 4 VA |
| Auxiliary Switches | 1 × SPDT |
| Angle of Rotation | 95° |
| Motor Running Time | 150 s |
| Motor Running Time Range | 75–300 s |
| Fail-Safe Running Time | <25 s |
| Motor Direction | Selectable with switch 0/1 |
| Fail-Safe Direction | Reversible with CW/CCW mounting |
| Shaft Range | 1/4–1/2 in [6.4–12.7 mm] |
| Electrical Connection | 18 GA appliance cable, 3 ft [1 m], 1/2 in NPT conduit connector |
| Overload Protection | Electronic, full 0–95° rotation |
| Electrical Protection | Double insulated, Class 2 |
| Enclosure Rating | NEMA 2 / UL Type 2 |
| Ambient Temperature | -22°F to 122°F [-30°C to 50°C] |
| Agency Listing | cULus |
| Plenum Rating | UL 2043 |
| Weight | 1.8 lbs |
Information About TFB24-MFT-S
The TFB24-MFT-S belongs to Belimo's TF-Series of spring-return actuators designed for direct mounting to small round damper shafts. Its universal clamp accommodates shaft sizes from 1/4 to 1/2 inch, while the fail-safe direction can be reversed through CW/CCW mounting. Multi-Function Technology allows the actuator to be configured for multiple control modes and signal ranges. A built-in SPDT auxiliary switch can provide damper position indication or support equipment interlocking.
Key Features:
- Spring-Return Design: Returns the damper to a fail-safe position when actuator power is interrupted.
- MFT Control: Provides field-programmable operation with 2–10 VDC as the default setting.
- Actuator Torque: Produces 22 in-lb [2.5 Nm] of torque for small damper applications.
- Shaft Compatibility: Directly accommodates round damper shafts from 1/4 to 1/2 inch.
- Adjustable Speed: Provides a motor running time of 75–300 seconds, with 150 seconds specified nominally.
- Auxiliary Switch: Includes one SPDT switch for position signaling or equipment interlock functions.
- Fail-Safe Return: Completes spring return in less than 25 seconds under specified operating conditions.
- Protection: Uses a NEMA 2 and UL Type 2 enclosure with double-insulated Class 2 electrical protection.
The TFB24-MFT-S delivers the reliability and precision required for fail-safe damper positioning and programmable HVAC control applications.