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Redundant Power Supply Module Woodward 5501-381

Redundant Power Supply Module Woodward 5501-381

Product Description

The 5501-381 is a high-capacity Triple Modular Redundant (TMR) power supply module developed by Woodward, Inc. for the MicroNet Digital Control Platform.

Designed for mission-critical turbine and engine control systems, this module converts 220...

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Availability: Low stock: 99 left

SKU: 5501-381
Vendor: Woodward
Category: Redundant Power Supply Module
Related Series:

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Product Description

The 5501-381 is a high-capacity Triple Modular Redundant (TMR) power supply module developed by Woodward, Inc. for the MicroNet Digital Control Platform.

Designed for mission-critical turbine and engine control systems, this module converts 220 VAC industrial utility power into stable low-voltage control power for MicroNet processors and I/O hardware. The TMR architecture supports redundant power operation, eliminating single points of failure and ensuring continuous system availability during maintenance or utility disturbances.

The module includes an integrated 10 A time-delay breaker for inrush current management and short-circuit protection. Its hot-swappable design allows maintenance without shutting down the control rack or interrupting prime mover operation, making it ideal for high-availability power generation facilities.

Technical Specifications

Parameter Specification
Model 5501-381
Series MicroNet TMR
Input Voltage 220 VAC nominal
Frequency Range 47 – 63 Hz
Maximum Input Power 1250 VA
Maximum Input Current 6.7 A
Input Protection 10 A time-delay breaker/fuse
Holdup Time 1 AC cycle at 220 VAC
Redundancy Support Dual-supply TMR architecture
Maintenance Method Hot-swappable under load
System Compatibility MicroNet TMR control chassis
Weight 2 kg 

Application

  • Utility-scale power generation plants

  • Steam and gas turbine control systems

  • High-reliability industrial automation systems

  • Critical mechanical drive control applications

FAQ

Can two 5501-381 modules be installed in one chassis?
No. For TMR redundancy, power supplies must be installed in separate chassis segments and interconnected using designated ribbon cabling.

What is the purpose of the 10 A time-delay breaker?
It allows the module to safely handle startup inrush currents while protecting against sustained overcurrent conditions.

Is it compatible with DC power systems?
No. This module is designed specifically for 220 VAC high-voltage AC input systems. DC-powered systems require different MicroNet power supply variants.