TFB120-S Belimo Damper Actuator

Overview

The Belimo TFB120-S is a line-voltage spring return damper actuator featuring a built-in auxiliary switch for on/off fail-safe control and position feedback.

Features

• Operates on 100-240 VAC line voltage for versatile installation options
• Integrated SPDT auxiliary switch enables status monitoring and equipment interlocking
• Mechanical spring return guarantees emergency fail-safe closure
• Universal shaft clamp for direct mounting to damper shafts

Specifications

• Torque: 22 in-lb [2.5 Nm]
• Nominal Voltage: AC 100…240 V
• Control Type: On/Off
• Actuator Type: Spring Return
• Auxiliary Switch: 1 x SPDT
• Damper Area: Up to 5.5 sq ft

Applications

• On/off fail-safe damper control with position status feedback
• Fan interlocking, safety shut-off, and air handler ventilation systems