Woodward 5501-381

The Woodward 5501-381 TMR Power Supply ABB — actually the Woodward 5501-381 Triple Modular Redundant Power Supply is a high-performance power board designed for Woodward's MicroNet Digital Control series. It delivers stable, continuous 24 V DC power to control modules under tough site conditions, ensuring dependable operation of turbine control and critical industrial automation systems.

Key Specifications:

Brand：Woodward

Model：5501-381 (REV. D/G)

Type：Triple Modular Redundant (TMR) Power Supply

Series：MicroNet Digital Control 

Input Voltage：220 V AC (47–63 Hz)

Max Input Power：1250 VA

Max Input Current：6.7 A

Output：Regulated 24 V DC

Redundancy：Triple modular redundant (TMR), hot-swap capable

Status Indicators：Input Fault, Power Supply Fault, Overtemperature, OK

Protection Features：Input fault detection, over-temperature and output fault monitoring

Chassis：MicroNet TMR

Operating Temperature：-20°C to +60°C

Humidity Range：5% to 95% non-condensing

Certifications：CE, RoHS, UL

The Woodward 5501-381 TMR power supply combines redundant power architecture with outstanding reliability. Serving as the power backbone within MicroNet control systems, it ensures uninterrupted supply to critical control channels, enabling seamless integration and steady performance in demanding industrial surroundings. With triple modular redundancy and hot-swap capability, this module keeps the control system running even during maintenance or module replacement, improving overall system availability. Built-in fault and temperature monitoring allow operators to detect abnormal conditions early and reduce unplanned downtime. The Woodward 5501-381 complies with strict industrial standards, making it a trusted power option for high-integrity turbine control and automation applications.