Belimo TFB120-SR Actuator
The Belimo TFB120-SR is a professional-grade spring return damper actuator designed for modulating control in robust HVAC systems. Engineered for high-reliability fail-safe operation, this 22 in-lb torque actuator ensures positive close-off on air-tight dampers during power loss. Operating on a universal 100 to 240 VAC power supply, it accepts a 2 to 10 VDC modulating control signal (or 4 to 20 mA with a 500? resistor) to provide precise proportional positioning. The unit features a brushless DC motor regulated by a microprocessor, ensuring a constant running time of 95 seconds regardless of load or torque fluctuations. Designed for direct-coupled mounting on shafts from 1/4" to 1/2", the TFB120-SR actuator includes a visual position indicator and NEMA 2 protection, making it a staple for contractors seeking modulating HVAC actuator solutions in air plenum applications. Its internal electronic overload protection eliminates the need for limit switches, enhancing long-term field performance.
Key Benefits for Contactors- Fail-Safe Reliability: True spring return mechanical backup ensures the damper returns to the safety position in under 25 seconds during power outages.
- Universal Compatibility: The 100-240V AC power input and 2-10 VDC feedback signal integrate seamlessly with standard building automation systems (BAS).
- Maintenance-Free Design: High-efficiency brushless DC motor technology provides consistent torque and reduces the need for frequent site visits.
- Ease of Installation: Direct-mount universal clamp and reversible rotation (CW/CCW) streamline field setup on various damper configurations.
How do I control the TFB120-SR with a 4-20 mA signal?
To utilize a 4-20 mA control signal, you must install a 500? resistor (such as the Belimo ZG-R01) across the input terminals to convert the signal to the required 2-10 VDC range.
Can these actuators be wired in parallel?
Yes, multiple TFB120-SR actuators can be connected in parallel; however, you must account for the total power consumption (5.5 VA per unit) and ensure input impedance requirements are met.
What is the maximum damper size this actuator can handle?
The Belimo TFB120-SR provides 22 in-lb of torque, which is generally suitable for dampers up to approximately 4 to 5 square feet, depending on the damper's seal type and pressure rating.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Belimo TFB120-SR Actuator
The Belimo TFB120-SR is a professional-grade spring return damper actuator designed for modulating control in robust HVAC systems. Engineered for high-reliability fail-safe operation, this 22 in-lb torque actuator ensures positive close-off on air-tight dampers during power loss. Operating on a universal 100 to 240 VAC power supply, it accepts a 2 to 10 VDC modulating control signal (or 4 to 20 mA with a 500? resistor) to provide precise proportional positioning. The unit features a brushless DC motor regulated by a microprocessor, ensuring a constant running time of 95 seconds regardless of load or torque fluctuations. Designed for direct-coupled mounting on shafts from 1/4" to 1/2", the TFB120-SR actuator includes a visual position indicator and NEMA 2 protection, making it a staple for contractors seeking modulating HVAC actuator solutions in air plenum applications. Its internal electronic overload protection eliminates the need for limit switches, enhancing long-term field performance.
Key Benefits for Contactors- Fail-Safe Reliability: True spring return mechanical backup ensures the damper returns to the safety position in under 25 seconds during power outages.
- Universal Compatibility: The 100-240V AC power input and 2-10 VDC feedback signal integrate seamlessly with standard building automation systems (BAS).
- Maintenance-Free Design: High-efficiency brushless DC motor technology provides consistent torque and reduces the need for frequent site visits.
- Ease of Installation: Direct-mount universal clamp and reversible rotation (CW/CCW) streamline field setup on various damper configurations.
How do I control the TFB120-SR with a 4-20 mA signal?
To utilize a 4-20 mA control signal, you must install a 500? resistor (such as the Belimo ZG-R01) across the input terminals to convert the signal to the required 2-10 VDC range.
Can these actuators be wired in parallel?
Yes, multiple TFB120-SR actuators can be connected in parallel; however, you must account for the total power consumption (5.5 VA per unit) and ensure input impedance requirements are met.
What is the maximum damper size this actuator can handle?
The Belimo TFB120-SR provides 22 in-lb of torque, which is generally suitable for dampers up to approximately 4 to 5 square feet, depending on the damper's seal type and pressure rating.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
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Description
The Belimo TFB120-SR is a professional-grade spring return damper actuator designed for modulating control in robust HVAC systems. Engineered for high-reliability fail-safe operation, this 22 in-lb torque actuator ensures positive close-off on air-tight dampers during power loss. Operating on a universal 100 to 240 VAC power supply, it accepts a 2 to 10 VDC modulating control signal (or 4 to 20 mA with a 500? resistor) to provide precise proportional positioning. The unit features a brushless DC motor regulated by a microprocessor, ensuring a constant running time of 95 seconds regardless of load or torque fluctuations. Designed for direct-coupled mounting on shafts from 1/4" to 1/2", the TFB120-SR actuator includes a visual position indicator and NEMA 2 protection, making it a staple for contractors seeking modulating HVAC actuator solutions in air plenum applications. Its internal electronic overload protection eliminates the need for limit switches, enhancing long-term field performance.
Key Benefits for Contactors- Fail-Safe Reliability: True spring return mechanical backup ensures the damper returns to the safety position in under 25 seconds during power outages.
- Universal Compatibility: The 100-240V AC power input and 2-10 VDC feedback signal integrate seamlessly with standard building automation systems (BAS).
- Maintenance-Free Design: High-efficiency brushless DC motor technology provides consistent torque and reduces the need for frequent site visits.
- Ease of Installation: Direct-mount universal clamp and reversible rotation (CW/CCW) streamline field setup on various damper configurations.
How do I control the TFB120-SR with a 4-20 mA signal?
To utilize a 4-20 mA control signal, you must install a 500? resistor (such as the Belimo ZG-R01) across the input terminals to convert the signal to the required 2-10 VDC range.
Can these actuators be wired in parallel?
Yes, multiple TFB120-SR actuators can be connected in parallel; however, you must account for the total power consumption (5.5 VA per unit) and ensure input impedance requirements are met.
What is the maximum damper size this actuator can handle?
The Belimo TFB120-SR provides 22 in-lb of torque, which is generally suitable for dampers up to approximately 4 to 5 square feet, depending on the damper's seal type and pressure rating.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
