Description
- GE IS200TREGH1B | 125VDC Trip Terminal Assembly
Unboxing & Physical Snapshot
- Model & Brand: GE IS200TREGH1B
- Product Type: Mark VI Turbine Emergency Trip Terminal Board (TREG)
- Application: GE Speedtronic Mark VI turbine control system terminal board used for emergency trip solenoid interfacing, overspeed protection, and emergency shutdown functions. The TREG board works with the TRPG board to complete the positive and negative sides of trip solenoid control circuits.
- Approximate Physical Dimensions (W × H × D):
- Approximately 178 × 330 × 50 mm
- Rectangular printed circuit board assembly with terminal blocks and cable connectors.
- Estimated Shipping Weight: Approximately 1.0 kg including ESD protection and export packaging. Some inventory references list approximately 2 lb shipping weight for the board assembly.
- What’s in the Box:
- GE IS200TREGH1B Turbine Emergency Terminal Board
- Terminal block assembly
- Board connectors
- Protective anti-static (ESD) packaging
- Identification label
- Documentation when supplied with controlled inventory
Product Introduction
The IS200TREGH1B sits inside the GE Mark VI turbine protection architecture, providing the physical termination point between control electronics and emergency trip field devices. The board handles trip solenoid power interfacing and relay-based voting circuits used for turbine shutdown functions. It is typically controlled by the Mark VI protection controller rather than operating as an independent logic processor.
Treat this board as a safety-related termination asset. Inspect the relay bodies, terminal screws, PCB coating, connector pins, and conformal coating condition before installation. The board contains multiple relay channels and surge suppression components (which is critical because trip circuits must remain predictable during electrical disturbances). Verify the exact hardware revision and wiring drawings before replacement.
Core Technical Specifications
| Parameter | Value |
|---|---|
| Manufacturer | General Electric (GE) |
| Model Number | IS200TREGH1B |
| Product Family | Mark VI Speedtronic |
| Product Type | Turbine Emergency Trip Terminal Board |
| Functional Designation | TREG |
| Application | Gas and steam turbine emergency trip circuits |
| Trip Solenoid Support | Up to 3 emergency trip solenoids |
| Relay Quantity | 12 relays |
| Relay Voting Arrangement | Three groups of three voting relays for trip solenoid control |
| Typical Trip Circuit Voltage | 125 VDC applications |
| Control Power Source | Mark VI protection system supply |
| Partner Board | IS200TRPGH1B Primary Trip Terminal Board |
| Controller Interface | VPRO / Mark VI I/O controller |
| PCB Construction | Multilayer PCB with SMD components |
| Protection Components | MOV surge suppression and relay protection circuits |
| Memory | None |
| Firmware Storage | None |
| Power Consumption | Passive termination board; depends on relay activation |
| Heat Dissipation | Dependent on energized relay circuits |
| Mounting Method | Mark VI cabinet installation |
| Operating Temperature | Approximately 0°C to 70°C |

GE IS200TREGH1B
Global Compliance & Industry Certifications
Expected compliance considerations for the GE IS200TREGH1B include:
- CE Mark consideration when installed within an approved GE Mark VI turbine control cabinet.
- UL/cUL Listed or Recognized status may apply to the complete Mark VI control assembly rather than the standalone PCB.
- IEC 61508 relevance when the board is installed within a validated turbine protection or safety function.
- ATEX/IECEx consideration for turbine packages operating in hazardous-area environments.
- Marine approvals such as DNV GL may apply when the complete turbine control package is certified for marine service.
The safety importance of this board is tied to emergency shutdown reliability. A correctly documented and approved termination board helps maintain the validated protection chain between turbine logic and field trip devices.
Verify specific lot certifications with OEM.
Long-Term Storage & Asset Preservation Guide
- Store the inside an original anti-static ESD shielding bag. Keep terminal blocks and connector pins protected from dust and oxidation.
- Maintain warehouse humidity below 60% RH to prevent corrosion on relay contacts, terminal hardware, and exposed metal surfaces.
- Inspect stored boards every 12–24 months. Record serial numbers, revision markings, PCB coating condition, and packaging integrity.
Check the conformal coating.
Avoid storing the board near chemical vapors or areas with uncontrolled temperature cycling. Relay assemblies can degrade silently after years of poor storage conditions.
Physical Installation Prerequisites
- Install only in the approved GE Mark VI Speedtronic cabinet configuration.
- Confirm compatibility with associated:
- VPRO protection module
- TRPG primary trip terminal board
- Emergency trip solenoid wiring
- Inspect terminal screws and connector interfaces before installation.
- Verify cabinet protective earth grounding.
- Maintain cabinet airflow clearance. Leave approximately 50 mm above and below rack assemblies where practical.
- Use grounded ESD protection when handling the PCB.
- Confirm all trip circuit wiring matches approved GE drawings before energizing the turbine control system.
Buyer’s FAQ (Logistics & Compliance Focus)
Q: What HS Tariff Code is commonly reviewed for the GE ?
A: Industrial turbine control terminal boards are commonly evaluated under HS 8538 / HS 853890 categories as parts of electrical control equipment. Final classification depends on customs interpretation, declared function, and importing-country requirements.
Q: Why does Country of Origin (COO) documentation matter for this board?
A: COO documentation supports customs clearance, supplier audits, and turbine maintenance traceability. Match the COO information with the invoice, packing list, board label, and receiving inspection records.
Q: Is shipping insurance recommended for the ?
A: Yes. The PCB contains relays, terminal blocks, and precision connectors that can be damaged by impact or moisture exposure. Use ESD packaging, shock protection, and declared-value freight coverage.
Q: Does the include the latest firmware pre-loaded?
A: No. The is a terminal board and does not contain application firmware or memory storage. Configuration and diagnostic functions are handled by connected Mark VI control modules.



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