Overview
The Belimo TFRB24-3 is a spring return valve actuator providing reliable on/off and floating point fail-safe control for commercial HVAC hydronic valves.
Features
- Spring return fail-safe mechanism ensures positive valve return on power loss
- Dual compatibility with floating point and on/off control systems
- Pre-wired appliance cable simplifies electrical installation
- Maintenance-free design with electronic overload protection
Specifications
- Nominal Voltage: AC/DC 24 V
- Control Type: On/Off, Floating Point
- Actuator Type: Spring Return
- Torque: 22 in-lb [2.5 Nm]
- Power Consumption: 2.5 W running, 1 W holding
Applications
- Fail-safe floating point control of small characterized control valves
- Hydronic heating and cooling zone control in commercial facilities


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