GE IS200SRLYH2AAA Turbine Control System I/O Terminal Board

Product Description

Model: IS200SRLYH2AAA Manufacturer: GE General Electric Product Name: Mark VIe Simplex Relay Output Terminal Board (SRLY) Product Type: Turbine Control System I/O Terminal Board Origin: USA

IS200SRLYH2AAA belongs to GE Speedtronic Mark VIe series, it is a simplex relay output terminal board. It serves as the interface between I/O pack and field actuators. Equipped with 12 relay contact channels, it converts digital commands from the controller into isolated passive relay dry contact outputs. It can directly drive solenoid valves, contactors, trip circuits, alarm indicators and other field power devices. Relay contacts provide galvanic isolation to protect main control circuit from interference of field loads. It is widely installed in gas turbine & steam turbine generator control cabinets, providing hard contact outputs for unit interlock, protective tripping and sequence control. This board is a passive termination board and works with matching I/O Pack modules. It is rack-mounted for Mark VIe system and designed for high-reliability power plant industrial environment.

Technical Specifications

• Channel Count: 12 relay output channels
• Contact Type: Channels 1~6: Form C (SPDT, NO+NC); Channels7~12: Form A (NO only)
• Contact Rating: Up to 125VDC / 115VAC
• Isolation: Galvanic isolation via relay contacts
• Power Supply: Powered by matched I/O Pack, typical 24VDC
• Mounting: Slot mounting inside Mark VIe control rack
• Operating Temperature: 0℃ ~ +60℃
• Dimension: approx.180mm × 120mm × 35mm
• Weight: approx.0.8kg
• Certification: UL, Class I Div 2 / Zone 2 certification for hazardous area in power plant
• Architecture: Simplex (non-redundant board)

Application

1. Combined cycle power plant: Mark VIe control system for gas turbine and steam turbine
2. Unit protection: Hard contact trip output for overspeed, vibration and temperature protection
3. Sequence control: Unit start-stop logic, auxiliary valves, oil pump solenoid valve driving
4. Interlock circuit: Equipment safety interlock, alarm signal and fault indicator driving
5. Others: Compressors, large rotating machinery, offshore power unit control

Related Series Models

IS200SRLYS2A, IS200TRLYS1F, IS200TRLYS2F, IS230SRLYH2A, IS220YDOAS1A, IS200SRTDH2ACV

Lifecycle

Original manufacturer discontinued. Available supply includes used and refurbished spare parts for power plant maintenance replacement.