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GE IS200TRLYH1B Terminal Relay Card
GE IS200TRLYH1B
1. Product Overview
The GE IS200TRLYH1B is a terminal relay card for the GE Mark VI steam turbine/gas turbine control system.As the “B” version of the TRLY terminal board, it provides 48 channels of Barrier relay outputs.It adopts technologies such as voting coil-driven feedback, socket-type sealed mechanical relays, and MOV suppression to ensure high reliability and anti-interference capability.
2. Key Technical Specifications
| Specification | Description |
|---|---|
| Model | IS200TRLYH1B (or variants including IS200TRLYH1B HH, BGF, etc.) |
| Number of Terminals | 48 channels (two terminal boards, 24 silver metal terminals each) |
| Power Supply | 24 V DC |
| Rated Current | 1 A / 2 A (5 A, 10 A optional) |
| Operating Temperature | –40 °C ~ +85 °C |
| Protection Class | IP67 (for BGF variant) |
| Dimensions | Approximately 120 mm × 80 mm × 40 mm |
| Weight | 0.2 ~ 0.5 kg |
| Connection Method | DIN rail mounting; spring clips or bolted wiring for terminals |
3. Product Features
- High Reliability: Multi-layer PCB, SMD components, and voting coil-driven feedback prevent single-point failures.
- Modular Design: Detachable terminal boards and optional pluggable mechanical relays facilitate on-site maintenance and replacement.
- Safety Protection: Built-in MOV suppression and overcurrent/overvoltage protection, complying with industrial safety standards such as IEC 61800‑9‑1.
- Strong Compatibility: Fully compatible with the I/O interface of the GE Mark VI control system, supporting 48-channel barrier outputs and adapting to various on-site equipment.
- Environmental Adaptability: Wide temperature range and IP67 protection make it suitable for harsh industrial sites.
4. Structure and Composition
- Two Terminal Boards: Two large black terminal boards on the left, with 24 silver terminals each, totaling 48 channels.
- Mechanical Relays: Socket-type sealed mechanical relays equipped with MOV suppression circuits.
- Voting Coil Drive Circuit: Enables redundant driving to improve reliability.
- Connectors: 4 connector ports on the right for communication with the control system host.
- Housing: Aluminum alloy or high-strength plastic, providing IP67 protection.
5. Typical Application Fields
- Gas/steam turbine control (Mark VI turbine system)
- Power systems: Relay protection and control in power plants and substations
- Petroleum and chemical industry: Process control, and start/stop of valves and pumps
- Industrial automation: I/O expansion for production lines, robots, and equipment manufacturing
- Energy management: Power distribution automation and load dispatching
6. Installation and Maintenance Points
| Step | Key Points |
|---|---|
| Hardware Installation | Insert the module into the corresponding Mark VI slot in the control cabinet and ensure the clip is locked securely. |
| Wiring | Connect the power supply and signal lines according to the wiring diagram; use spring clips or bolts to ensure firm connections, and comply with the IEC 60204‑1 electrical safety standard. |
| Configuration | Identify the module in the Mark VI control software, assign I/O addresses, and set the barrier logic. |
| Debugging | Check the on/off status of each relay and verify that the MOV suppression function works normally. |
| Regular Inspection | Inspect terminal tightness, housing protection, and heat dissipation every 6 ~ 12 months; replace faulty relays or terminal boards in a timely manner if abnormalities are found. |
| Spare Parts Management | It is recommended to keep terminal boards, mechanical relays, and MOV suppression diodes of the same model in stock to shorten maintenance downtime. |
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