TFRB24-SR-S Belimo Valve Actuator
$322.70
Valve Actuator, Spring return, AC/DC 24 V, 2…10 V, 1 x SPDT, modulating
Overview
The Belimo TFRB24-SR-S is a spring return proportional valve actuator featuring an auxiliary switch for fail-safe modulating control in commercial hydronic loops.
Features
- Proportional 2 to 10 VDC control input for precise water flow regulation
- Spring return action provides automatic fail-safe positioning upon power loss
- One integrated SPDT auxiliary switch enables position signaling or control interlocks
- Low power consumption design with electronic overload protection
Specifications
- Nominal Voltage: AC/DC 24 V
- Control Type: Modulating (2 to 10 VDC)
- Actuator Type: Spring Return
- Auxiliary Switch: 1 x SPDT
- Torque: 22 in-lb [2.5 Nm]
- Power Consumption: 4 VA transformer rating
Applications
- Modulating hydronic valve control requiring automatic safety fail-safe protection
- Terminal unit water loops with position status feedback to building management systems
| Weight | 7 lbs |
|---|---|
| Dimensions | 2 × 2 × 2 in |
| Actuator Type | Spring Return |
| Auxiliary Switch | 1 x SPDT |
| Control Type | Modulating |
| Torque | 18 in-lb [2 Nm] |
| Voltage | AC/DC 24 V |
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