Description
The Belimo TFB120 is a compact, high-performance spring return actuator designed for reliable on/off control of HVAC dampers. With a robust 22 in-lb (2.5 Nm) torque output and a true mechanical spring return mechanism, it ensures fail-safe operation by automatically returning dampers to their default position during power loss.
Features:
- Universal Voltage Compatibility: Operates seamlessly on AC 100–240V, 50/60 Hz, accommodating a wide range of electrical systems.
- Reliable Spring Return Mechanism: Ensures consistent torque and dependable fail-safe positioning without the need for mechanical end switches.
- Compact Design: Features one of the shortest shaft-center to edge distances in the industry (0.77″), facilitating installation in tight spaces.
- Adjustable Rotation: Provides 95° of rotation with an easy-to-read position indicator, allowing for precise damper control.
- Overload Protection: The actuator is overload-proof throughout its rotation, preventing burnout and ensuring longevity.
- Versatile Mounting: Reversible clockwise/counterclockwise fail-safe mounting adapts to various installation requirements.
- Durable Construction: Encased in a rugged housing with an IP42 (NEMA 2) rating, it withstands challenging mechanical room environments.
- Energy Efficient: Consumes only 2.5W during operation and 1.3W in holding mode, reducing energy costs.
- Extended Warranty: Backed by a 5-year warranty, reflecting Belimo’s commitment to quality and reliability.
Specifications:
- Torque: 22 in-lb (2.5 Nm)
- Control Type: On/Off
- Running Time (Motor): 75 seconds
- Running Time (Fail-Safe): <25 seconds
- Ambient Temperature Range: -22°F to 122°F (-30°C to 50°C)
- Enclosure Rating: IP42 (NEMA 2)
- Shaft Diameter Compatibility: 1/4″ to 1/2″ round, centers on 1/2″
- Power Consumption: 2.5W (running), 1.3W (holding)
- Certifications: cULus, CE, RoHS compliant
Ideal for applications requiring dependable damper control in HVAC systems, the Belimo TFB120 actuator combines precision, durability, and energy efficiency. Its compact form factor and versatile features make it a preferred choice for engineers and contractors seeking reliable performance in space-constrained installations.
