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Product Overview
IS410SRLYS2A and IS400SRLYS2ABB are SRLY simplex relay output terminal boards for GE Mark VIe and Mark VIeS Speedtronic turbine control systems. IS410SRLYS2A is the standard production model, and IS400SRLYS2ABB is the engineering variant built for special project requirements. Both boards share identical hardware functions and pinouts.
This terminal board works together with the YDOA discrete output I/O pack. It serves as the physical wiring interface between the Mark VIe controller and field devices. It provides 12 channels of Form‑C relay contacts to drive external loads including solenoid valves, alarm annunciators, auxiliary relays and safety interlock circuits. The on-board identification chip allows the Mark VIe system to automatically detect the board and run continuous diagnostic checks. The PCB is conformal coated to resist dust, moisture and vibration in power plant control cabinets.
Key Features
- Part Number: IS410SRLYS2A / IS400SRLYS2ABB
- Manufacturer: GE Boards & Turbine Control
- Compatible System: GE Mark VIe / Mark VIeS Turbine Control System
- Module Type: Simplex Relay Output Terminal Board (SRLY)
- Relay Configuration: 12 × Form‑C relay contacts (NO / NC / Common)
- Matching I/O Pack: YDOA discrete output I/O pack
- On-board ID chip for auto recognition and system diagnostics
- Conformal coated PCB for harsh cabinet environments
- Screw terminal blocks for stable field wiring
- Simplex architecture for non-TMR auxiliary control circuits
- Designed for rack mounting inside Mark VIe control cabinets
Technical Specifications
- Model: IS410SRLYS2A (standard), IS400SRLYS2ABB (engineering variant)
- Series: GE Mark VIe SRLY Terminal Board
- Contact Type: Form‑C
- Total Channels: 12 relay output channels
- Compatible I/O Pack: YDOA
- Mounting: Installed in Mark VIe I/O rack assembly
- Operating Temperature: -20°C ~ +60°C
- Typical Application: Gas turbine, steam turbine auxiliary control and alarm interlock
- Working Environment: Power plants, oil & gas compressor stations, petrochemical plants
Applications
IS410SRLYS2A and IS400SRLYS2ABB are widely used in power generation, oil and gas, and petrochemical industries. They are mounted inside Mark VIe control racks to execute relay on-off commands for turbine auxiliary equipment. Common use cases:
- Gas & steam turbine auxiliary equipment relay control
- Turbine alarm signal output and local annunciator triggering
- Auxiliary safety interlock and emergency shutdown relay actuation
- Mark VIe / Mark VIeS spare replacement and control rack retrofits
- Balance of plant (BOP) discrete control for power stations
FAQ
Q: What is the difference between IS410SRLYS2A and IS400SRLYS2ABB?
A: IS410SRLYS2A is the standard production board. IS400SRLYS2ABB is an engineering variant for custom project configurations. The core relay output function, channel count and wiring are the same for both versions.
Q: Which I/O pack pairs with IS410SRLYS2A?
A: It is designed to work with the YDOA discrete output I/O pack for Mark VIe systems.
Q: How many relay output channels does this board have?
A: It provides 12 Form‑C relay contact output channels for field load control.
Q: Do you supply tested IS410SRLYS2A and IS400SRLYS2ABB spare parts?
A: We supply surplus and refurbished terminal boards with full functional testing before shipment. Contact us for stock status and quotation.
Q: What warranty can you offer?
A: Warranty conditions depend on product condition. Please send inquiry to get detailed warranty terms.
Call to Action
Contact our sales team to check stock, price and lead time for GE IS410SRLYS2A and IS400SRLYS2ABB. We supply GE Mark VIe turbine control spare parts worldwide.
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