Belimo TFB24-3-S Actuator
The Belimo TFB24-3-S is a high-performance spring return actuator engineered for precise control in HVAC applications requiring up to 22 in-lb torque. This 24V AC/DC powered unit supports floating point control, making it a reliable choice for modulating small dampers or valves. With its integrated SPDT auxiliary switch, technicians can easily achieve position feedback or sequence additional equipment without extra modules. Designed for fail-safe operation, the mechanical spring return ensures the damper reaches its safety position during power loss. The rugged NEMA 2 housing and brushless DC motor technology provide long-term reliability in demanding environments. This actuator is often utilized in VAV terminal units and fan coil systems where compact dimensions and quiet operation are critical. Its universal spindle clamp simplifies installation, allowing for quick retrofitting on standard shafts while maintaining consistent HVAC damper control performance.
- Fail-Safe Reliability: Mechanical spring return ensures consistent closure during power interruptions.
- Integrated Feedback: Built-in auxiliary switch allows for easy signaling and interlock capabilities.
- Versatile Powering: Operates on both 24V AC and 24V DC for broad system compatibility.
- Compact Design: Small footprint ideal for tight installations in VAV boxes and unit ventilators.
- Brushless Motor: Maintenance-free operation with precise positioning accuracy.
Common Questions
How do I wire the Belimo TFB24-3-S for floating control?
This actuator uses a three-wire configuration where one common wire and two control wires manage clockwise and counter-clockwise rotation. Ensure your controller is configured for floating (tri-state) output.
Can the auxiliary switch on the TFB24-3-S be adjusted?
The SPDT switch is fixed at a 10-degree angle to provide a reliable signal when the actuator reaches its start position or during a specific point in the stroke.
What is the maximum damper size for a 22 in-lb actuator?
While it depends on the damper construction and pressure, the TFB24-3-S is typically rated for dampers up to approximately 4 to 5 square feet.
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.
Original: $308.38
-65%$308.38
$107.93Belimo TFB24-3-S Actuator
The Belimo TFB24-3-S is a high-performance spring return actuator engineered for precise control in HVAC applications requiring up to 22 in-lb torque. This 24V AC/DC powered unit supports floating point control, making it a reliable choice for modulating small dampers or valves. With its integrated SPDT auxiliary switch, technicians can easily achieve position feedback or sequence additional equipment without extra modules. Designed for fail-safe operation, the mechanical spring return ensures the damper reaches its safety position during power loss. The rugged NEMA 2 housing and brushless DC motor technology provide long-term reliability in demanding environments. This actuator is often utilized in VAV terminal units and fan coil systems where compact dimensions and quiet operation are critical. Its universal spindle clamp simplifies installation, allowing for quick retrofitting on standard shafts while maintaining consistent HVAC damper control performance.
- Fail-Safe Reliability: Mechanical spring return ensures consistent closure during power interruptions.
- Integrated Feedback: Built-in auxiliary switch allows for easy signaling and interlock capabilities.
- Versatile Powering: Operates on both 24V AC and 24V DC for broad system compatibility.
- Compact Design: Small footprint ideal for tight installations in VAV boxes and unit ventilators.
- Brushless Motor: Maintenance-free operation with precise positioning accuracy.
Common Questions
How do I wire the Belimo TFB24-3-S for floating control?
This actuator uses a three-wire configuration where one common wire and two control wires manage clockwise and counter-clockwise rotation. Ensure your controller is configured for floating (tri-state) output.
Can the auxiliary switch on the TFB24-3-S be adjusted?
The SPDT switch is fixed at a 10-degree angle to provide a reliable signal when the actuator reaches its start position or during a specific point in the stroke.
What is the maximum damper size for a 22 in-lb actuator?
While it depends on the damper construction and pressure, the TFB24-3-S is typically rated for dampers up to approximately 4 to 5 square feet.
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.
Product Information
Product Information
Shipping & Returns
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Description
The Belimo TFB24-3-S is a high-performance spring return actuator engineered for precise control in HVAC applications requiring up to 22 in-lb torque. This 24V AC/DC powered unit supports floating point control, making it a reliable choice for modulating small dampers or valves. With its integrated SPDT auxiliary switch, technicians can easily achieve position feedback or sequence additional equipment without extra modules. Designed for fail-safe operation, the mechanical spring return ensures the damper reaches its safety position during power loss. The rugged NEMA 2 housing and brushless DC motor technology provide long-term reliability in demanding environments. This actuator is often utilized in VAV terminal units and fan coil systems where compact dimensions and quiet operation are critical. Its universal spindle clamp simplifies installation, allowing for quick retrofitting on standard shafts while maintaining consistent HVAC damper control performance.
- Fail-Safe Reliability: Mechanical spring return ensures consistent closure during power interruptions.
- Integrated Feedback: Built-in auxiliary switch allows for easy signaling and interlock capabilities.
- Versatile Powering: Operates on both 24V AC and 24V DC for broad system compatibility.
- Compact Design: Small footprint ideal for tight installations in VAV boxes and unit ventilators.
- Brushless Motor: Maintenance-free operation with precise positioning accuracy.
Common Questions
How do I wire the Belimo TFB24-3-S for floating control?
This actuator uses a three-wire configuration where one common wire and two control wires manage clockwise and counter-clockwise rotation. Ensure your controller is configured for floating (tri-state) output.
Can the auxiliary switch on the TFB24-3-S be adjusted?
The SPDT switch is fixed at a 10-degree angle to provide a reliable signal when the actuator reaches its start position or during a specific point in the stroke.
What is the maximum damper size for a 22 in-lb actuator?
While it depends on the damper construction and pressure, the TFB24-3-S is typically rated for dampers up to approximately 4 to 5 square feet.
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.
