Description
WOODWARD
MFR1
MULTI FUNCTION RELAY
PART NO.: LR21035
REV.: J
CONVERTING, CONTROLLING MONITORING
MFE13
MFR1345B/GP
The Woodward MFR1 Multi Function Relay (part number LR21035, Revision J) is a purpose-built relay module designed to perform converting, controlling, and monitoring functions within marine control systems. As a core component in automated shipboard environments, the MFR1 handles multiple relay switching tasks within a single unit, reducing wiring complexity and improving system reliability. Compatible with associated Woodward modules including the MFE13 and MFR1345B/GP configurations, this relay is suited for integration into engine control, power management, and auxiliary automation panels found across a wide range of vessel types. Its role in marine control architecture makes it operationally significant wherever precise switching, signal conversion, or system monitoring is required.
Key Features
✓ Multi-function relay design supporting converting, controlling, and monitoring operations within a single compact module.
✓ Identified as Revision J of part LR21035 — a specific hardware revision important for ensuring correct system compatibility; voltage ratings and response times are subject to confirmation based on configuration.
✓ Compatible with Woodward MFE13 and MFR1345B/GP system configurations, making it suitable for integration into broader Woodward marine control architectures.
✓ Intended for installation within marine control panels and automation enclosures; mounting location and environmental rating should be confirmed against the specific vessel installation drawings.
✓ As a direct replacement relay module, careful revision matching is recommended during servicing to maintain system integrity and avoid control logic mismatches.
Marine Applications
✓ Engine control and governor systems on commercial vessels where Woodward automation platforms are installed.
✓ Power management and switchboard automation systems requiring multi-function relay switching and signal monitoring.
✓ Auxiliary machinery control panels on cargo vessels, tankers, and offshore support vessels.
✓ Generator management and load-sharing control systems utilising Woodward modular control architectures.
✓ Automation retrofit and upgrade projects where existing Woodward MFR1-series relay modules require replacement or reconfiguration.
Why Marine Engineers Choose
The Woodward MFR1 Multi Function Relay is valued for its ability to consolidate multiple relay functions into one reliable module, simplifying panel layouts and reducing potential failure points in critical marine control applications. Its established position within the Woodward ecosystem ensures straightforward integration for engineers already working with compatible Woodward control hardware.
Ideal For
Cargo vessels, bulk carriers, tankers, offshore support vessels, ferries, and any commercial or industrial marine vessel operating Woodward-based engine control or power management automation systems.
Technical Support & Compliance
Technical assistance is available for remote troubleshooting, onboard support, testing and commissioning, module-level repair assessment, system retrofit and upgrade planning, and integration support for Woodward control architectures — all subject to confirmation of the specific installation context. To confirm compatibility and suitability, buyers are encouraged to share nameplate photographs, the full part number and revision level, relevant system drawings or panel schematics, the associated Woodward system model and software version where applicable, and vessel name or IMO number along with the intended scope of work. All compatibility and fitment assessments are subject to confirmation based on the information provided.
