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model TF24-SR-S
proportional control, spring return
24 vac
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Application
The TF24-SR-S proportional control, spring return actuator is provided with 1 built-in auxiliary switch and is intended for proportional modulation, fail-safe control of dampers in HVAC systems. The actuator operates in response to a 2 to 10 VDC, or with the addition of a 500 ohm resistor, a 4 to 20 mA control input from an electronic controller or positioner. A 2 to 10 VDC feedback signal is provided for position indication or master-slave applications.
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