Overview
The Belimo TFRX120 is a line-voltage spring return valve actuator designed for simple 120V on/off fail-safe control in commercial HVAC applications.
Features
- Direct 120 VAC line-voltage operation eliminates transformer installation
- Mechanical spring return fail-safe feature ensures system protection during power failure
- Compact housing with pre-attached cable for simplified installation
- Electronic overload protection maintains continuous motor protection
Specifications
- Nominal Voltage: AC 120 V
- Control Type: On/Off
- Actuator Type: Spring Return
- Torque: 18 in-lb [2 Nm]
- Enclosure Rating: IP42, NEMA 2
- Running Time: 75 seconds
Applications
- Fail-safe on/off control for water valves connected to line voltage
- Hydronic zone isolation and terminal unit water shut-off


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