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IS200SRTDH2ABB — GE Speedtronic Mark VI SRTD Terminal Board
The IS200SRTDH2ABB is a terminal board from GE's Speedtronic Mark VI turbine control system, belonging to the IS200 board family. It is an SRTD-type module — a rack-mounted termination board whose function relates to RTD (Resistance Temperature Detector) input signal handling within the turbine control cabinet.
The Mark VI platform is one of GE's turbine control systems, used to govern gas and steam turbines in power generation and industrial drive applications. In the Mark VI/VIe architecture, IS200 terminal boards provide the physical field-wiring termination and interface for the control system's input and output signals. The IS200SRTDH2ABB carries the "H2" board designation and an "ABB" revision suffix, distinguishing it from related SRTD variants. Boards in this family are associated with RTD temperature measurement — the signal type used for turbine bearing, exhaust, and process temperature monitoring.
Key Specifications
| Manufacturer | General Electric (GE) |
| Model / Part Number | IS200SRTDH2ABB |
| Product Line | Speedtronic Mark VI / Mark VIe |
| Product Type | SRTD Board / RTD Input Terminal Board |
| Board Family | IS200 series |
| Designation / Revision | H2 board, "ABB" revision suffix |
| Signal Type | RTD (resistance temperature detector) input signals |
| Form Factor | Rack-mounted terminal board within the control cabinet |
| Function | RTD signal termination and interfacing within the Mark VI/VIe system |
| Status | Legacy — available through GE and industrial spare-parts channels |
Important: Channel count, supported RTD types (2-wire/3-wire/4-wire), voltage ratings, dimensions, and connector details for the IS200SRTDH2ABB are not consistently documented across public sources. Please confirm these against the board label, GE documentation, or your system manual before ordering, and verify the correct paired I/O pack where applicable.
Product Functions
- RTD signal termination: Provides the field-wiring termination point for RTD temperature sensors connected to the turbine control system.
- Temperature signal interfacing: Routes RTD signals from field instrumentation into the Mark VI/VIe system for processing and monitoring.
- I/O pack support: Where applicable, mates with the corresponding I/O pack to provide channel-level input for temperature measurement.
- Signal integrity: Supports accurate measurement of turbine bearing, exhaust, and process temperatures by providing a clean, dedicated signal path.
- System integration: Operates as part of the modular IS200 board set, coordinating with other boards and I/O packs within the cabinet.
- Rack-mounted modular design: Slots into the control cabinet rack, allowing board-level replacement during maintenance without full system rewiring.
- System lifecycle support: Keeps existing Mark VI/VIe installations operational, supporting spares strategies for ageing turbine control systems.
Application Scenarios
- Gas turbine control: RTD temperature signal termination within Mark VI/VIe cabinets for gas turbine monitoring and protection.
- Steam turbine control: Temperature input interfacing in steam turbine control applications.
- Bearing & exhaust temperature monitoring: Supports the RTD-based temperature measurement used to protect turbine bearings and hot gas paths.
- Power generation plants: Keeps legacy Mark VI/VIe turbine controls serviceable in utilities managing long-life assets.
- Oil & gas facilities: Support for turbine-driven compressors and mechanical drive applications under Mark VI/VIe control.
- Maintenance & overhaul: Sourced as a spare during scheduled outages to minimise downtime and rewiring effort.
- Legacy system lifecycle support: Supports spares and phased modernization strategies for plants still running Mark VI/VIe controls.
Frequently Asked Questions
What is the IS200SRTDH2ABB?
It is an SRTD-type terminal board from GE's Speedtronic Mark VI / Mark VIe turbine control system (IS200 board family), associated with RTD temperature input signal handling and mounted in the control cabinet rack.
What does "SRTD" mean?
The designation relates to RTD (Resistance Temperature Detector) input handling — the temperature measurement signal type used for turbine bearings, exhaust, and process temperatures. Always confirm the exact functional definition against GE documentation for your revision.
Which systems is it compatible with?
It is designed for GE Speedtronic Mark VI / Mark VIe turbine control systems. It is not intended for Mark I, II, or V platforms or other unrelated control systems. Confirm the "H2" designation and revision suffix match your system.
What technical details should I confirm before buying?
Channel count, supported RTD types (2-wire, 3-wire, or 4-wire), voltage ratings, dimensions, and connector configuration should be confirmed against the board label or GE documentation, along with the correct paired I/O pack where applicable.
Is it still available?
The Mark VI/VIe platform is a mature but active product. Boards in the IS200 series are generally available through GE and industrial spare-parts / repair specialists. Contact your supplier for current availability and lead time.
What should I verify before ordering a replacement?
Match the complete part number including the revision suffix, confirm the board designation corresponds to your cabinet position, verify the paired I/O pack where applicable, and check compatibility with your Mark VI/VIe firmware and system documentation. Providing a photo of the existing board to your supplier helps ensure a correct match.
