Description
WOODWARD
PART NO.: 5439-579 L
LOW VOLTAGE POWER SUPPLY
3074-885 E
18-32 VDC SUPPLY
5500-326 R
601.063.001.0018
5439-579 K
The Woodward 5439-579 is a low voltage power supply module designed to deliver stable, regulated electrical power within marine control systems. Operating on an 18–32 VDC supply input, this unit provides the consistent power conditioning required by sensitive control electronics aboard commercial and industrial vessels. As a core component within marine automation and engine control architectures, it ensures that downstream control circuitry receives clean, reliable power — directly supporting the integrity of propulsion management, governor systems, and ancillary automation equipment. Its role within the Marine Control System category makes it a critical element for maintaining continuous and safe vessel operations.
Key Features
✓ Low voltage power supply module providing regulated DC output for marine control system electronics, with a stated input supply range of 18–32 VDC.
✓ Compatible with Woodward control and governor system architectures; cross-reference numbers 3074-885 E and 5500-326 R indicate application variants — exact panel or controller compatibility subject to confirmation against vessel documentation.
✓ Suitable for installation within protected control panels and enclosed automation spaces; specific mounting configuration and enclosure rating should be verified against the applicable system drawing.
✓ Designed for integration into demanding marine environments where stable power delivery to control electronics is operationally critical; SOLAS relevance depends on the system in which it is installed.
✓ Direct replacement considerations should include cross-referencing all associated part numbers (5439-579 K, 3074-885 E) to confirm correct variant for the target installation.
Marine Applications
✓ Diesel and dual-fuel propulsion control systems aboard merchant vessels, where Woodward governors and engine management units require stable low-voltage power supply modules.
✓ Offshore supply vessels and platform support vessels utilising Woodward-based automation systems for engine speed governing and load control.
✓ Bulk carriers, tankers, and container ships with integrated bridge and engine room control systems dependent on regulated DC power distribution.
✓ Fishing vessels, tugboats, and workboats fitted with Woodward control panels requiring replacement or upgrade of power supply components.
✓ Power generation and auxiliary machinery control panels aboard a range of vessel types where low-voltage DC power conditioning is required.
Why Marine Engineers Choose
Marine engineers specify Woodward power supply modules for their proven reliability within demanding control system environments, their compatibility with established Woodward governor and automation platforms, and the confidence that comes from sourcing manufacturer-referenced components for critical machinery control applications.
Ideal For
Merchant fleet operators, ship management companies, vessel owners, and marine MRO procurement teams maintaining Woodward-equipped control systems across commercial shipping, offshore support, and power generation applications.
Technical Support
Technical support is available for this Woodward power supply module, covering onboard installation guidance, system integration, and remote troubleshooting assistance. Support extends to repair assessment and compatibility queries related to Woodward marine control system applications.




