Belimo Part: TFB120, Damper Actuator, Spring Return, 22in-lb, On/Off Control Input, 120VAC Power Input
The TF series actuators provide true spring return operation for reliable fail-safe application and positive close
off on air tight dampers. The spring return system provides consistent torque to the damper with, and without,
power applied to the actuator.
The TF series provides 95 Deg. of rotation and is provided with a graduated position indicator showing 0 Deg. to 90 Deg.
The actuator may be stalled anywhere in its normal rotation without the need of mechanical end switches.
Power consumption is reduced in holding mode. The actuator is double insulated so an electrical ground
connection is not necessary. The TF-S versions are provided with one built-in auxiliary switch. This SPDT
switch is provided for safety interfacing or signaling, for example, for fan start-up. The switching function is
adjustable between 0 Deg. and 95 Deg.
Fail-Safe | Spring Return |
Torque | 22 in-lb [2.5 Nm] minimum |
Control Input | On/Off |
Input Impedance | -- |
Position Feedback | -- |
Running Time (motor) | <75 seconds |
Running Time (fail-safe) | < 25 seconds @ -4°F to +122°F [-20°C to +50°C], < 60 sec @ -22°F [-30°C] |
Auxiliary Switch | -- |
Power Supply | 100240 VAC +10% / -15%, 50/60 Hz |
Power Consumption | 2.5 W,1.3 W |
Transformer Sizing | 5 VA |
Electrical Connection | 3 ft, 18 GA appliance cable, 1/2" conduit connector |
Overload Protection | electronic throughout 0 to 95° rotation |
Shaft Diameter | Standard: 1/4" to 1/2" round, centers on 1/2" |
Angle of Rotation | max. 95°, adjustable with mechanical stop |
Direction of Rotation (motor) | reversible with CW/CCW mounting |
Direction of Rotation (fail-safe) | reversible with CW/CCW mounting |
Position Indication | visual indicator, 0° to 95° (0° is full spring return position) |
Manual Override | -- |
Humidity | max. 95% RH non-condensing |
Ambient Temperature | -22°F to +122°F [-30°C to +50°C] |
Ambient Temperature (safety) | -- |
Storage Temperature | -40°F to +176°F [-40°C to +80°C] |
Noise Level | running < 50 dB (A), spring return 62 dB (A) |
Housing Material | UL94-5VA |
Housing | NEMA 2, IP42, UL enclosure type 2 |
Agency Listing | cULus acc. To UL60730-1A/-2-14, CAN/CSA E60730-1:02, CE acc. To 2004/108/EC |
Quality Standards | ISO 9001 |
Weight | 1.4 lbs (0.6 kg) |
Item Number:
TFB120
Manufacturer:
Belimo
Manufacturer Part No:
TFB120