Description
Key Technical Specifications
| Parameter | Value |
|---|---|
| Product Model | IS200TREAH2AED |
| Manufacturer | General Electric |
| Control Platform | Mark VI / Mark VIe Speedtronic |
| Product Type | Turbine Trip Relay / Emergency Trip Terminal Board |
| Board Family | TREA |
| Redundancy | TMR-related turbine protection architecture |
| Associated I/O | PPRO I/O Pack |
| Function | Turbine emergency-trip / protection interface |
| Mounting Architecture | Mark VI VME-era / associated turbine protection architecture |
| Replacement Architecture | IS230TREAH2A / IS230TNEAH2A references in GE obsolete-electronics documentation |
| Field Inputs | Application-specific; verify cabinet drawings |
| Trip Outputs | Application-specific relay/trip circuitry |
| Supply Voltage | System-dependent; verify original cabinet documentation |
| Communication | PPRO I/O architecture; not a general-purpose Ethernet communication module |
| Firmware | Associated I/O pack/system dependent |
| Operating Temperature | Verify GE system documentation for the installed assembly |
GE documentation identifies IS200TREAH2A as a Mark VIe “TRIP RELAY: AEP EMER” board and lists the corresponding IS230TREAH2A as a TMR PPRO I/O-pack configuration. This is substantially more reliable for identification than supplier listings that describe the board as a generic analog or communication module.
Product Introduction
The GE IS200TREAH2AED is a Mark VI turbine protection board in the TREA family, associated with the emergency-trip relay function. It belongs to the Speedtronic turbine-control architecture and interfaces with the protection system rather than serving as a conventional PLC analog or digital I/O card. GE component documentation associates the TREA hardware with PPRO protection I/O.
The important procurement point is function. This board sits in a turbine protection path where hardware identity, redundancy architecture, and associated I/O packs matter. It should not be substituted simply because another Mark VI board has similar connectors or a similar physical footprint.
IS200TREAH2AED
Application Scenarios & Field Pitfalls
Engineering Pain Point
A turbine trip circuit is one of the worst places to make a “close enough” replacement decision. A board that powers up normally can still be wrong for the installed protection architecture. With IS200TREAH2AED, the first question should be whether the plant is using the corresponding TREA/PPRO arrangement and redundancy configuration, not whether another Mark VI board happens to fit the rack.
Typical Applications
- Gas Turbine Power Generation — Emergency-trip and turbine protection circuitry.
- Steam Turbine Systems — Shutdown-path interfacing within legacy Speedtronic control cabinets.
- Combined-Cycle Plants — TREA/PPRO protection hardware supporting turbine protection functions.
- Industrial Turbomachinery — Maintenance of legacy GE Mark VI turbine control and protection assemblies.
Technical Pitfalls to Avoid
- Do not classify it as a generic analog I/O module.
Several secondary listings incorrectly describe the IS200TREAH2AED as an analog-input, communication, or general controller module. GE’s component documentation instead identifies the underlying TREA hardware with the TRIP RELAY: AEP EMER function. - Check the PPRO architecture before replacement.
GE documentation shows the IS200TREAH2A associated with IS230TREAH2A, which is described as a TMR PPRO I/O-pack configuration. This is a protection architecture issue, not merely a board-level compatibility question. - Do not mix Mark VI and Mark VIe hardware casually.
The IS200 designation belongs to the older board architecture, while IS230 replacement assemblies are documented in the Mark VIe/obsolete-electronics transition material. Confirm the installed system and approved replacement path before making a conversion. - Verify the complete suffix.
IS200TREAH2AED should be matched against the original board’s complete identification, artwork/revision information, and cabinet documentation. Do not purchase an IS200TREAH2A variant solely from the shortened base number.
Related Products
- GE IS200TREAH2A — Base TREA emergency-trip relay board designation. It is the closest hardware-family reference for IS200TREAH2AED. The complete suffix should still be matched before replacement.
- GE IS230TREAH2A — GE Mark VIe-era replacement assembly associated with the TREA function and TMR PPRO I/O architecture. It is important when evaluating an obsolete IS200 installation for an approved newer assembly path.
- GE IS230TNEAH2A — Corresponding catalog/replacement designation shown with the IS230TREAH2A configuration in GE’s obsolete-electronics documentation. It should be checked against the actual system architecture before procurement.
- GE IS200TREAH1A — Related TREA trip-relay hardware with a different redundancy/application configuration. It is not automatically interchangeable with the H2A variant.
- GE IS200TREAH3A — Another TREA-family emergency-trip board designation. The differing variant is significant; verify the turbine protection architecture before considering it as an alternative.
- GE IS200TREGH1A — Mark VI emergency-trip terminal-board hardware. It belongs to the same broad turbine protection area but performs a different interface function, so it is not a drop-in replacement for TREA hardware.
- GE IS200TRPAH2A — Primary trip board used in the Mark VI protection architecture. It is a complementary protection component rather than a direct replacement for the TREA board.
- GE IS200TRLYH2F — Relay-output hardware associated with the Mark VI turbine-control ecosystem. It may be encountered in the same protection cabinet, but its relay-output function differs from the TREA emergency-trip interface.
- GE IS220PPROH1A — Turbine-specific protection I/O module used in the Mark VIe architecture. It is particularly relevant when reviewing the newer I/O-pack side of a TREA-based protection arrangement.
Procurement takeaway: The should be treated as turbine protection hardware, not as a generic PLC I/O card. The strongest available documentation identifies the TREA family with the AEP emergency-trip relay function and associates the H2A configuration with TMR PPRO protection architecture.
For a live turbine system, verify the complete board suffix, cabinet wiring, PPRO configuration, redundancy arrangement, and approved IS200-to-IS230 replacement path before installation.
