Description
1. At-A-Glance Executive Brief
- Model: IS200TREAH2ACC
- Brand: GE (General Electric)
- Part Type: Turbine Terminal Board for Relay Outputs
- System Compatibility: GE Mark VI / Mark VIe Distributed Control Systems
- Lifecycle Status: Legacy / Legacy System Migration Support
2. Technical Introduction
Unexpected tripping events tied to failing output terminal boards can force unscheduled outages across heavy gas and steam turbine assets. The IS200TREAH2ACC functions within the Mark VI control architecture to route high-integrity relay command signals from the VME-based processor core directly to plant actuators and interlock chains. This board manages heavy-duty switching duties while isolating field-side electrical noise from sensitive control logic.
3. Core Technical Specifications
| Parameter | Value |
| Manufacturer | General Electric (GE) |
| Product Line | Mark VI / Mark VIe |
| Board Type | Relay Output Terminal Board |
| Application | Heavy-Duty Turbine Control |
| Mounting Configuration | Cabinet Panel / Rack Mount |
| Termination Type | Heavy-Duty Barrier Terminal Blocks |
| Diagnostic Features | Board ID Chip / Hardware Revision Tracking |
| Environmental Tolerance | Please refer to the OEM datasheet for complete environmental tolerances. |
4. Field Engineer’s Tech Notes
- Terminal Block Torque Limits: Over-tightening the physical screw terminals on high-vibration turbine skids can fracture the board-mounted headers. Use a calibrated torque driver to secure field wiring without stressing solder joints.
- Jumper and Ribbon Cable Seating: Ensure the multi-pin ribbon cables connecting this terminal board to the I/O processor are fully latched and keyed correctly. A loose or offset connection will trigger communication loss alarms or intermittent relay dropouts on the Mark VI HMIs.
5. Adaptive QA & Testing Protocol
Every pre-owned or New Surplus IS200TREAH2ACC unit undergoes rigorous bench validation before leaving our warehouse. Our technicians perform optical inspections for trace corrosion, verify onboard electronic components using component-level testers, and execute dry-contact relay actuation testing under simulated load conditions to confirm proper contact closure. Detailed test reports and high-resolution inspection videos can be provided upon request prior to dispatch.
6. Buyer’s FAQ
- What is the standard warranty coverage for this terminal board?We back all New Surplus (NSFP) and refurbished GE parts with a comprehensive 12-month replacement warranty from the date of invoice.
- How fast can this part ship to an active plant outage?We maintain dedicated stock for expedited global air freight. Standard orders ship within 24 hours to minimize downtime during emergency maintenance windows.
- Are there hardware revision conflicts to watch out for when replacing an older IS200TREAH-series board?Check your existing board’s suffix lettering (e.g., ACC vs. previous iterations) against the ToolboxST software configuration to ensure pinout and electronic ID chip compatibility before installation.




