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Belimo TFB120-S Spring Return Damper Actuator
- Regular price
- $199.00
- Sale price
- $199.00
- Regular price
-
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Product Description P/N: TFB120-S
Description
The Belimo TFB120-S is a compact spring-return damper actuator designed for fail-safe control of small commercial HVAC dampers. It operates on AC 100–240 V power, provides 22 in-lb [2.5 Nm] of torque, and uses on/off control with a 1 x SPDT auxiliary switch for position signaling or equipment interlocking.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Belimo |
| Category | Damper Actuator |
| Part Number | TFB120-S |
| Subcategory | Spring Return Damper Actuator |
| Power Supply | AC 100–240 V, 50/60 Hz |
| Power Consumption (Running) | 2.5 W |
| Power Consumption (Holding) | 1.3 W |
| Transformer Sizing | 5 VA |
| Control Type | On/Off |
| Torque | 22 in-lb [2.5 Nm] |
| Auxiliary Switches | 1 x SPDT |
| Auxiliary Switch Rating | 3A resistive / 0.5A inductive at 250 VAC |
| Angle of Rotation | Max. 95°, adjustable |
| Running Time (Motor) | <75 s |
| Running Time (Fail-Safe) | <25 s at -4°F to 122°F [-20°C to 50°C]; <60 s at -22°F [-30°C] |
| Direction of Rotation | Reversible with CW/CCW mounting |
| Shaft Diameter | 1/4 in. to 1/2 in. round |
| Degree of Protection | IP42, NEMA 2 |
| Enclosure Type | UL Enclosure Type 2 |
| Ambient Temperature | -22...122°F [-30...50°C] |
| Storage Temperature | -40...176°F [-40...80°C] |
| Housing Material | UL94-5VA |
| Electrical Protection | Electronic overload protection; double insulated |
| Noise Level (Motor) | <50 dB(A) |
| Noise Level (Fail-Safe) | <62 dB(A) |
| Servicing | Maintenance free |
| Weight | 1.83 lbs |
Information About TFB120-S
The TFB120-S is a Belimo spring-return actuator for direct-coupled control of small round damper shafts from 1/4 in. to 1/2 in. Its 95° rotation range and selectable CW/CCW mounting allow the motor and fail-safe directions to be configured for the application. The actuator provides a 75-second motor running time and returns to its fail-safe position in under 25 seconds under specified conditions. AC 100–240 V operation, electronic overload protection, and maintenance-free construction support use in commercial HVAC damper applications.
Key Features:
- Spring Return: Provides fail-safe damper positioning when operating power is removed.
- 22 in-lb Torque: Delivers 22 in-lb [2.5 Nm] of torque for small commercial dampers.
- 100–240 VAC Power: Operates directly from AC 100–240 V line-voltage power.
- On/Off Control: Provides two-position control for damper opening and closing.
- 95° Rotation: Provides up to 95° of adjustable damper rotation with a mechanical stop.
- Selectable Direction: Allows motor and fail-safe rotation direction to be configured through CW/CCW mounting.
- Auxiliary Switch: Includes one adjustable SPDT switch for position indication or equipment interlocking.
- Compact Shaft Compatibility: Direct-couples to round damper shafts from 1/4 in. to 1/2 in.
The TFB120-S delivers the reliability and precision required for fail-safe damper control in small commercial HVAC systems.
Description
The Belimo TFB120-S is a compact spring-return damper actuator designed for fail-safe control of small commercial HVAC dampers. It operates on AC 100–240 V power, provides 22 in-lb [2.5 Nm] of torque, and uses on/off control with a 1 x SPDT auxiliary switch for position signaling or equipment interlocking.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Belimo |
| Category | Damper Actuator |
| Part Number | TFB120-S |
| Subcategory | Spring Return Damper Actuator |
| Power Supply | AC 100–240 V, 50/60 Hz |
| Power Consumption (Running) | 2.5 W |
| Power Consumption (Holding) | 1.3 W |
| Transformer Sizing | 5 VA |
| Control Type | On/Off |
| Torque | 22 in-lb [2.5 Nm] |
| Auxiliary Switches | 1 x SPDT |
| Auxiliary Switch Rating | 3A resistive / 0.5A inductive at 250 VAC |
| Angle of Rotation | Max. 95°, adjustable |
| Running Time (Motor) | <75 s |
| Running Time (Fail-Safe) | <25 s at -4°F to 122°F [-20°C to 50°C]; <60 s at -22°F [-30°C] |
| Direction of Rotation | Reversible with CW/CCW mounting |
| Shaft Diameter | 1/4 in. to 1/2 in. round |
| Degree of Protection | IP42, NEMA 2 |
| Enclosure Type | UL Enclosure Type 2 |
| Ambient Temperature | -22...122°F [-30...50°C] |
| Storage Temperature | -40...176°F [-40...80°C] |
| Housing Material | UL94-5VA |
| Electrical Protection | Electronic overload protection; double insulated |
| Noise Level (Motor) | <50 dB(A) |
| Noise Level (Fail-Safe) | <62 dB(A) |
| Servicing | Maintenance free |
| Weight | 1.83 lbs |
Information About TFB120-S
The TFB120-S is a Belimo spring-return actuator for direct-coupled control of small round damper shafts from 1/4 in. to 1/2 in. Its 95° rotation range and selectable CW/CCW mounting allow the motor and fail-safe directions to be configured for the application. The actuator provides a 75-second motor running time and returns to its fail-safe position in under 25 seconds under specified conditions. AC 100–240 V operation, electronic overload protection, and maintenance-free construction support use in commercial HVAC damper applications.
Key Features:
- Spring Return: Provides fail-safe damper positioning when operating power is removed.
- 22 in-lb Torque: Delivers 22 in-lb [2.5 Nm] of torque for small commercial dampers.
- 100–240 VAC Power: Operates directly from AC 100–240 V line-voltage power.
- On/Off Control: Provides two-position control for damper opening and closing.
- 95° Rotation: Provides up to 95° of adjustable damper rotation with a mechanical stop.
- Selectable Direction: Allows motor and fail-safe rotation direction to be configured through CW/CCW mounting.
- Auxiliary Switch: Includes one adjustable SPDT switch for position indication or equipment interlocking.
- Compact Shaft Compatibility: Direct-couples to round damper shafts from 1/4 in. to 1/2 in.
The TFB120-S delivers the reliability and precision required for fail-safe damper control in small commercial HVAC systems.
