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Technical Documentation Pressure Independent Characterized ...

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J20728 - 04/07 - Subject to change. © Belimo Aircontrols (USA), Inc.<br />

® <strong>Pressure</strong><br />

<strong>Independent</strong> <strong>Characterized</strong> Control Valve<br />

with MFT, Spring Return Actuator, P/T Ports (Optional)<br />

Actuator Specifications<br />

TF24-MFT US<br />

Power supply 24 VAC ± 20% 50/60 Hz<br />

24 VDC ± 10%<br />

Power consumption running: 2.5 W; holding: 1 W<br />

Transformer sizing 4 VA (class 2 power source)<br />

Electrical connection TF24-MFT US 3 ft, 18 GA plenum rated cable<br />

1/2” conduit connector<br />

Overload protection electronic throughout 0° to 95° rotation<br />

Operating range Y 2 to 10 VDC<br />

4 to 20 mA<br />

(w/500Ω, 1/4 W resistor) ZG-R01<br />

Input impedance 100kΩ for 2 to 10 VDC (0.1 mA)<br />

500Ω for 4 to 20 mA<br />

Feedback output U<br />

1500Ω for PWM, Floating point and<br />

On-Off control<br />

2 to 10 VDC, 0.5 mA max<br />

Torque min 18 in-lb (2 Nm)<br />

Direction of rotation spring: reversible with cw/ccw mounting<br />

motor: reversible with built-in switch<br />

Mech. angle of rotation max 95°, adjust with mechanical stop<br />

Running time motor* 100 sec constant<br />

Running time spring

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