Woodward 8251-055 High-Power Actuator Driver

Product Brief Introduction High-output actuator driver module for large electric actuators in heavy-duty engine and turbine control applications.
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Technical Specifications Supply: 24 V DC ±10%; control input: 4–20 mA; output: 0–10 A continuous; current limit: 12 A; current feedback: 4–20 mA; operating temp: -40 °C to +80 °C; IP20.

Functional Features High-current proportional drive; current feedback output; adjustable current limit; over-temperature protection; short-circuit protection.

Application Scenarios Large engine fuel actuators, turbine valve actuators, heavy-duty electric throttle control.

Performance Parameters Output accuracy: ±1.5% FSO; response time: < 15 ms; thermal shutdown at +85 °C.

Material Composition Metal chassis; integral heat sink; power semiconductor stage; current sense circuit.

Structural Characteristics Rack mount; integral finned heat sink; rear power and signal terminals; front status LED.

Working Principle Amplifies the control signal to high output current for large actuators, with current feedback for closed-loop governor control.

Installation Requirements Mount with adequate cooling; use heavy-gauge output wiring; set current limit to match actuator rating.

Usage Notes Ensure adequate airflow; torque power terminals to specification; check heat sink temperature periodically.




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