Description
GE IS2020DRLYH1AA
Technical Specifications
- Product Type: Discrete Relay Output Board.
- System Compatibility: GE Mark VIe Speedtronic.
- Revision: 1AA indicating specific hardware/firmware version.
Functional Features
- High-Current Switching: Drives heavy-duty field loads directly.
- Galvanic Isolation: Protects sensitive Mark VIe electronics from field transients.
- Diagnostic Feedback: Reports relay coil status and open-circuit faults.
Application Scenarios
- Turbine Control: Driving trip solenoids, lube oil pumps, and cooling fans.
- Safety Systems: Providing hard-wired outputs for emergency shutdown panels.
Performance Parameters
- Contact Rating: Rated for industrial switching currents.
- Response Time: Fast relay actuation for critical safety trips.
Material Composition
- PCB: Multi-layer industrial-grade substrate.
- Components: Heavy-duty electromechanical relays and solid-state drivers.
Structural Characteristics
- Form Factor: Standard Mark VIe board dimensions.
- Connectors: High-density backplane and front-panel connectors.
Working Principle
Receives digital output commands from the Mark VIe controller, energizes internal relay coils, and switches high-power field circuits while providing status feedback.
Installation Requirements
- Ensure the system is completely powered down before installation.
- Align the board carefully with the backplane guides.
Usage Precautions
- Strictly adhere to ESD protocols.
- Verify field load ratings do not exceed relay specifications.





