Description
The GE IS200TREGH1BDB is a Turbine Emergency Trip Terminal Board (TREG) designed for the GE Speedtronic Mark VI turbine control system. It provides the electrical interface between the turbine protection control modules and emergency trip solenoid circuits, supporting critical turbine shutdown functions.
The TREG board manages emergency trip signal termination, relay interfaces, and trip solenoid power distribution. It works with GE turbine protection modules such as VPRO/PPRO systems to provide reliable emergency shutdown control for gas and steam turbine applications.
The IS200TREGH1BDB features redundant trip circuit design, relay protection components, terminal connections, and diagnostic feedback functions. It is commonly used as a replacement spare board for GE Mark VI turbine control cabinets in power generation facilities.
🔹 Product Parameters
| Parameter | Specification |
|---|---|
| Brand | General Electric (GE) |
| Model | IS200TREGH1BDB |
| Series | Mark VI Speedtronic |
| Product Name | Turbine Emergency Trip Terminal Board |
| Application | Emergency Trip Control / Turbine Protection Interface |
| Origin / Place of Manufacture | USA |
| Product Status | New Surplus / Open Box / Refurbished Available |
| Dimensions | Approx. 33 × 17.8 × 5.5 cm |
| Weight | Approx. 1.3–2.0 kg |
| Power Requirement | 125 VDC Trip Circuit Application |
| Board Type | Terminal Interface PCB |
| Main Function | Emergency Trip Solenoid Control Interface |
| Relay Configuration | Redundant Trip Relay Circuits |
| Compatible Systems | GE Mark VI Turbine Control System |
| Operating Temperature | Approx. 0°C to 60°C |
| Discontinued Status | Legacy Product, Limited Availability |
🔹 Common Questions & Answers
Q: What is the main function of the GE IS200TREGH1BDB?
A: It is a turbine emergency trip terminal board that provides the interface between GE protection logic and emergency trip solenoid circuits.
Q: Which GE system uses the IS200TREGH1BDB?
A: It is mainly used in GE Speedtronic Mark VI turbine control systems.
Q: What does TREG mean in the GE Mark VI system?
A: TREG refers to the Turbine Emergency Trip Terminal Board function, which handles emergency trip signal termination and solenoid control.
Q: What are common failure symptoms?
A: Typical issues include turbine trip circuit alarms, emergency solenoid control faults, relay feedback errors, fuse monitoring alarms, or loss of trip signal continuity.
Q: What should be checked before replacement?
A: Confirm the exact part number, revision level, trip voltage configuration, terminal wiring, connector type, and compatibility with the existing Mark VI protection system.
Q: Is IS200TREGH1BDB compatible with Mark VIe systems?
A: The board belongs to the Mark VI family. Mark VIe systems use different interface arrangements and should be verified before replacement.
🔹 Recommended GE Models
- IS200TREGH1B – Mark VI Turbine Emergency Trip Terminal Board
- IS200TREGH1BDC – Mark VI TREG Terminal Board Revision Variant
- IS200TRPGH1B – Mark VI Turbine Relay Protection Terminal Board
- IS200VPROH1B – Mark VI Turbine Protection Module
- IS215VPROH2B – Mark VI VPRO Protection Board
- IS200PTURH1B – Mark VI Turbine Protection I/O Board
- IS220PTURH1B – Mark VIe Turbine Protection I/O Pack
- IS200TTURH1C – Mark VI Turbine Terminal Board
- IS200TSVOH1B – Mark VI Servo Terminal Board
- IS200TRLYH1B – Mark VI Relay Output Terminal Board
- IS200PDIOH1B – Mark VI Digital I/O Terminal Board
- IS200PDIAH1B – Mark VI Digital Input Terminal Board
- IS200TBAIH1C – Mark VI Analog Input Terminal Board
- IS220PDOAH1A – Mark VIe Discrete Output I/O Pack
- IS420UCSCH2A – Mark VIe Controller Module



