Description
Woodward 5464-551
Technical Specifications
- Product Type: Relay Output Module.
- Contact Rating: Typically 5A at 250 VAC / 30 VDC.
- Contact Type: Form C (SPDT) or Form A (NO) depending on variant.
- Isolation: High-voltage isolation between relay banks and backplane.
Functional Features
- High Capacity: Multiple relay channels in a single module.
- Versatility: Suitable for both AC and DC loads.
- Status Indication: LED indicators for each relay state.
- Safety: Designed for safety-critical interlock applications.
Application Scenarios
Used for turbine trip circuits, lube oil pump control, cooling fan activation, and alarm annunciation.
Performance Parameters
- Mechanical Life: Millions of operations.
- Response Time: Fast relay actuation and release times.
Material Composition
High-quality relay contacts with silver alloy plating. Robust PCB and protective enclosure.
Structural Characteristics
Standard module width. Front panel features LED status indicators and terminal blocks.
Working Principle
Receives digital commands from the backplane and energizes/de-energizes relay coils to open or close contacts, switching external load circuits.
Installation Requirements
Ensure adequate spacing for heat dissipation. Use properly rated wiring for connected loads.
Usage Precautions
- Do not exceed contact voltage or current ratings.
- Use snubber circuits for inductive loads to prevent arcing.
- Verify relay logic in the configuration software before commissioning.




