GE IS200TPROH1B Termination Board – Obsolete Mark VI Spare Part

Technical Dossier

Product Details And Specifications

GE IS200TPROH1B Termination Board – Obsolete Mark VI Spare Part

RFQ support for obsolete parts: Send the model number, required quantity and destination so DriveKNMS can confirm sourcing options before quotation.

Technical Specifications

Note: Electrical parameters not listed to prevent inaccurate data. Confirm specifications against your system documentation before installation.

Solving the Discontinued Hardware Crisis

The GE Mark VI control system was introduced in the 1990s and became the dominant turbine control platform across North American and international power generation assets. GE has progressively discontinued Mark VI hardware in favor of the Mark VIe and Mark VIIe platforms. However, the installed base of Mark VI-controlled turbines remains substantial — and the economics of forced migration are severe.

The IS200TPROH1B termination board sits within the protection circuit architecture of the Mark VI. It serves as the physical interface between field wiring and the control I/O modules, handling protective relay signals that govern emergency shutdown logic. Without a functional TPRO board, the turbine protection system cannot operate within specification. Bypassing or improvising around a failed TPRO board is not an engineering option in a certified protection circuit.

Condition & Reliability Assurance

Every IS200TPROH1B unit processed by DriveKNMS passes a structured 5-step inspection protocol before it is offered for sale:

• Step 1 – Electrolytic Capacitor Assessment: All electrolytic capacitors are visually inspected for bulging, leakage, and ESR degradation. Boards with capacitor aging beyond acceptable tolerance are flagged for recapping before release.
• Step 2 – Firmware & Revision Verification: Board revision markings and any embedded firmware identifiers are documented and cross-referenced against known Mark VI compatibility matrices to confirm the correct hardware revision for the target system.
• Step 3 – Connector and Pin Corrosion Inspection: All edge connectors, terminal blocks, and I/O pins are inspected under magnification for oxidation, corrosion, and mechanical damage. Affected contacts are cleaned or the board is rejected.
• Step 4 – PCB Integrity Check: The printed circuit board is examined for cracked traces, cold solder joints, burn marks, and physical damage from prior installation or storage conditions.
• Step 5 – Functional Continuity Test: Where test fixtures permit, continuity and basic functional checks are performed to verify the board's signal paths are intact prior to shipment.

Units are shipped in anti-static packaging with full documentation of inspection findings. Condition grade (New Surplus, Refurbished, or Used-Tested) is disclosed at point of sale.

Key Features for System Maintenance

Q: How is condition confirmed before quotation?
A: Available condition, photos, test records and documentation are checked according to the requested model and sourcing channel before a formal RFQ response.

Q: Can DriveKNMS source other Mark VI boards?
A: Yes. DriveKNMS specializes in hard-to-find GE Mark VI and Mark VIe components. Contact us with your full bill of materials for a consolidated sourcing assessment.