Description
🔹 Product Description
The General Electric IS200TREGH5B, identified in the listing with the full assembly number IS200TREGH5BDC, is a Trip Emergency Terminal Board for the GE Mark VI Speedtronic turbine control system. The TREG board is part of the emergency trip and turbine protection architecture and works with the VPRO protection system and associated trip relay hardware. The H5 version is a special TREG configuration intended for systems using redundant TREG boards. The board includes relay circuits, terminal strips, connectors, suppression components, and interface circuitry for emergency trip functions. GE Mark VI documentation identifies the TREG as part of the emergency protection path used to control turbine trip solenoids.
📋 Product Datasheet
| Parameter | Value |
|---|---|
| Brand | General Electric (GE) |
| Model | IS200TREGH5B |
| Full Assembly Number | IS200TREGH5BDC |
| Series | Mark VI Speedtronic |
| Product Name | Trip Emergency Terminal Board |
| Place of Manufacture | USA |
| Product Status | New – Open Box |
| Dimensions | Approx. 178 × 330 × 38 mm |
| Weight | Approx. 0.5–0.9 kg |
| Power / Interface | System-supplied DC power; trip and control interfaces |
| Discontinued | Legacy / Obsolete Mark VI hardware |
⚙️ Key Features
• Designed for GE Mark VI turbine control and emergency protection systems
• TREG functional abbreviation for Trip Emergency Terminal Board
• H5 configuration intended for redundant TREG applications
• Provides emergency trip interface circuitry for turbine trip solenoids
• Uses relay-based voting circuitry for trip control
• Includes two terminal strips for field wiring
• Provides interface connections to associated VPRO protection hardware
• Includes resistors, diodes, MOVs, transistors, capacitors, and integrated circuits
• The H5 configuration uses JZ1 for the feedback circuit and economizing relay power in the applicable redundant architecture
• Suitable for maintenance, replacement, and spare-parts applications
❓ Common Questions & Answers
Q: What is the IS200TREGH5B?
A: It is a GE Mark VI Trip Emergency Terminal Board used as part of the turbine emergency trip and protection circuit.
Q: What is the full part number?
A: The listing identifies the board as IS200TREGH5B with the full assembly identification IS200TREGH5BDC.
Q: What does TREG mean?
A: TREG is the functional abbreviation used by GE for the Trip Emergency Terminal Board.
Q: What is special about the H5 version?
A: The H5 version is a special TREG configuration intended for systems with redundant TREG boards. Its feedback circuit and economizing relay power are provided through the JZ1 connector rather than the arrangement used on the H1B version.
Q: What system does this board belong to?
A: It belongs to the GE Mark VI Speedtronic turbine control system and is associated with the VPRO emergency protection architecture.
Q: How does TREG work with the trip system?
A: The TREG board provides the positive side of the DC trip circuit and interfaces with associated trip-protection hardware. In the Mark VI architecture, VPRO controls the TREG relay circuitry, which in turn participates in controlling the turbine trip solenoids.
Q: Can IS200TREGH5B replace an H1B board?
A: Replacement should not be assumed to be direct. The H5 version has a specific redundant-TREG application, so the existing turbine protection architecture, wiring, connector arrangement, and complete part number must be verified before installation.
Q: What should be checked before installation?
A: Verify the complete GE part number, revision suffix, TREG configuration, terminal wiring, JZ1/J1/J2 connections, associated VPRO or Mark VI equipment, and system documentation before energizing the board.
⭐ Recommended GE Models
- IS200TREGH1A — Turbine Emergency Trip Board
- IS200TREGH1B — Trip Emergency Termination Board
- IS200TREGH1BDB — Trip Emergency Termination Board
- IS200TREGH1BEC — Trip Emergency Termination Board
- IS200TREGH2B — Trip Emergency Terminal Card
- IS200TREGH2BDC — VPRO I/O Termination Board
- IS200TREGH3B — Redundant Trip Emergency Board
- IS200TREGH4B — Redundant Trip Emergency Board
- IS200TRPGH1B — Primary Trip Terminal Board
- IS200TRPGH1BDE — Primary Trip Terminal Board
- IS200TPROH1A — Protective Termination Board
- IS200TPROH1B — Emergency Protection Terminal Board
- IS200TPROH2C — Protective Termination Board
- IS200VPROH1B — VPRO Turbine Protection Board
- IS200VPROH2B — VPRO Protection Module
