5501-372
May 26, 2026

5501-372

Woodward 5501‑372 is a Triple Modular Redundant (TMR) safety‑grade AC‑input power supply module for Woodward MicroNet TMR high‑integrity control systems. It converts 110‑120 VAC mains power into regulated isolated DC power for TMR CPU, I/O modules and communication boards, with single‑point fault tolerance, hot‑swap capability and built‑in diagnostics. Used for gas/steam turbines, large reciprocating engines, compressors and critical power‑generation control systems.

Description

Key Features

  1. TMR triple‑redundant power architecture, meets SIL safety requirements

  2. Wide‑range AC input 110‑120 VAC, 47‑63 Hz

  3. LED status indicators: Power OK, Input Fault, Over‑Temperature, Power Failure

  4. Power‑fail holdup capacitor for short‑term ride‑through during transient power loss

  5. Over‑voltage, over‑current, over‑temperature, reverse‑polarity protection

  6. Conformal‑coated PCB, vibration‑resistant, suitable for power plant & offshore oil‑gas environments

  7. Hot‑swappable for online maintenance without system shutdown

Electrical Specifications

  • Input Voltage: 110‑120 VAC, 47‑63 Hz

  • Max Input Power: 650 VA

  • Output: Regulated isolated DC for MicroNet TMR system

  • Hold‑up Time: ≥1 power cycle at rated input

  • Operating Temperature: −40 °C ~ +70 °C

  • Storage Temperature: −55 °C ~ +105 °C

  • Humidity: 5–95% non‑condensing

  • Certifications: CE, UL, Class I Div 2 hazardous area compliant, SIL‑qualified

Mechanical & Environmental Features

  • Mounting: Rack‑mount in standard MicroNet TMR chassis

  • Housing: Heavy‑duty metal module enclosure

  • Weight: ~0.75 kg

  • Designed for 24‑hour continuous heavy‑duty industrial operation

Typical Applications

  • MicroNet TMR gas/steam turbine control system power supply

  • Large‑power reciprocating engine and gas compressor TMR control unit

  • Thermal power plant prime‑mover safety control systems

  • Offshore oil‑gas platform engine and turbine control power module


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