Product Core Brief
- Model: GE IS200SPROH1ACC
- Brand: GE (General Electric)
- Series: Speedtronic Mark VI IS200
- Core Function: Backup protection terminal board that hosts PPRO/YPRO I/O packs and provides backup trip relay interfacing for gas turbine control systems.
- Product Type: Backup protection terminal board
- Key Specs: Mark VI SPRO board | PPRO/YPRO I/O pack interface | Backup trip relay connections
- Condition: New Original (New Surplus) / Tested Surplus, depending on inventory lot
Product Introduction (Rotation Engine)
A turbine protection failure is rarely discovered during a routine check. It shows up when a trip signal must reach the relay logic and nothing responds. The GE IS200SPROH1ACC serves as a backup protection terminal board within the GE Speedtronic Mark VI turbine control system, providing the physical and electrical interface for backup protection functions.
This SPRO-family board is typically associated with PPRO or YPRO I/O packs and backup trip relay wiring. It does not replace the primary protection path, but it adds a separate, independent layer that can initiate a trip if the main protection channel fails. For plants running Mark VI systems, having a verified spare can shorten emergency replacement time and reduce forced outage risk.
Key Technical Specifications
| Parameter | Value |
|---|---|
| Manufacturer | GE (General Electric) |
| Model | |
| Product Family | Speedtronic Mark VI IS200 |
| Product Type | Backup protection terminal board (SPRO) |
| Associated I/O Packs | PPRO / YPRO (configuration-dependent) |
| Primary Function | Backup protection and trip relay interfacing |
| Typical Application | Gas turbine control and protection systems |
| Mounting | Terminal board within Mark VI I/O rack |
| Related Boards | IS200SPROH1A, IS200SPROH2A |
| Condition | New surplus or tested surplus |
Note: Exact connector layout, firmware dependencies, and compatible I/O packs must be confirmed from the physical nameplate and system documentation.
Key Selling Points & Differentiators
- Direct replacement for Mark VI SPRO backup protection applications when the suffix matches.
- Supports PPRO/YPRO I/O pack integration for independent backup protection logic.
- Provides backup trip relay interfacing separate from the primary protection path.
- Suitable for gas turbine plants that must maintain legacy Mark VI hardware availability.
- Supplied with visual inspection, power-up verification, and anti-static packing.
- Not recommended for Mark VIe systems requiring IS200SPROH2A or for installations that cannot verify the PPRO/YPRO pairing.
Quality Transparency SOP (DYNAMIC GENERATION)
- Nameplate and Suffix Verification — Confirm IS200SPROH1ACC, revision, and serial number. The “CC” suffix must match the original failed board exactly.
- Visual and Connector Inspection — Check terminal blocks, DC-37 or I/O connectors, relay areas, MOVs, and PCB traces for corrosion, burns, or mechanical damage.
- Power-Up and LED Check — Apply rated control power and verify normal board initialization and indicator status, if applicable.
- Connector Continuity Test — Use a Fluke multimeter to verify continuity between terminal points and associated connectors, ensuring no open or shorted paths.
- Relay and Trip Path Verification — Where test equipment allows, confirm backup trip relay operation and contact closure behavior.
- ESD-Safe Packing — Seal in anti-static packaging with foam support, desiccant, and a recorded inspection summary.
Technical Risk Avoidance (DYNAMIC GENERATION)
❗ Confirm the exact suffix before installation. IS200SPROH1A, IS200SPROH1ACC, and IS200SPROH2A are not automatically interchangeable. A wrong suffix can change connectors, firmware behavior, or protection function.
❗ Verify PPRO/YPRO compatibility. This terminal board is intended to host specific I/O packs. Installing an incompatible pack can cause communication failure or incorrect protection behavior.
❗ Do not bypass primary protection. The SPRO board provides backup protection. It must not be used as a substitute for repairing the primary PTUR/YTUR/TTUR protection path.
❗ Record trip wiring before replacement. Backup trip relay wiring must match the existing safety logic. Reversing or misrouting trip contacts can prevent a required shutdown.
Buyer’s FAQ
1. Is GE IS200SPROH1ACC still in production?
Availability varies. Most units are supplied as new surplus or tested surplus. Confirm current stock condition before purchase.
2. Can replace IS200SPROH1A?
Not automatically. The base function is similar, but the suffix may affect revision, connectors, or system compatibility. Match the nameplate exactly.
3. Is this board for Mark VI or Mark VIe?
The IS200SPROH1 family belongs to the Mark VI architecture. Mark VIe systems more commonly reference IS200SPROH2A.
4. Does it include configuration or firmware loading?
No. This board is supplied as hardware only. Application configuration must be handled by qualified turbine control personnel.
5. What warranty is provided?
Surplus and tested industrial boards should include a functional test record and a clear warranty term. If a supplier cannot provide either, treat the unit as unverified.
