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Phone: +86 16626708626Description
Key Technical Specifications
- Model: IS200TBCIH1B
- Brand: General Electric
- Series: Mark VI / Mark VIe
- Module Type: Contact input terminal board
- Input Type: 24 dry-contact inputs
- Terminal Blocks: 2 barrier-type terminal blocks
- Wire Capacity: Up to #12 AWG
- Noise Protection: Suppression circuitry on contact inputs
- Board Configuration: No hardware settings or jumpers
- Weight: About 1.80 lb
- Operating Temperature: 30 C to 65 C
Product Introduction
GE IS200TBCIH1B is a Mark VI contact input terminal board used in turbine control and distributed control systems. It terminates 24 dry-contact inputs and connects to GE control hardware through molded-cable interfaces.
It is chosen as a replacement when the original terminal board fails or when a spare is needed for installed-base support. There are no jumpers to set, but the wiring, terminal blocks, and system compatibility still need to match the original unit exactly.
Troubleshooting Quick Reference
| Symptom | Possible Cause | Relevance to This Part | Quick Check Method | Recommendation |
|---|---|---|---|---|
| No contact inputs register | Missing DC excitation or wiring fault | ✅ High | Measure excitation voltage at the terminal board and verify field wiring continuity | Check supply and wiring before replacing the board |
| Only some inputs fail | Loose terminal block or damaged field wire | ✅ High | Inspect both barrier blocks and tug-test each conductor | Reseat and retighten terminals first |
| Inputs chatter or flicker | Noise pickup or poor shielding | ✅ High | Verify shield termination and inspect cable routing near power wiring | Fix grounding and shielding before swapping parts |
| Board not recognized by processor | Cable or rack issue | ✅ High | Check molded cable fit and confirm VME rack status | Verify the rack and interface cable first |
| All inputs stuck high or low | Excitation fault or wrong wiring scheme | ✅ High | Compare the live wiring against the OEM diagram and measure the contact state | Confirm dry-contact wiring and polarity |
| Intermittent faults after warm-up | Aging board or heat-related connection issue | ✅ Medium | Run under load and watch for dropout as cabinet temperature rises | Replace if the fault repeats with heat |
If you are stuck, send technical support clear photos of the board, the terminal blocks, and the cabinet diagnostics.
- IS200TBCIH1B
Frequently Asked Questions
Q: What is the IS200TBCIH1B used for?
A: It is a GE Mark VI contact input terminal board for 24 dry-contact inputs. It is used in turbine control and related industrial automation systems.
Q: Is this part still being manufactured?
A: No, it is a legacy GE part. Most units available today are surplus or refurbished stock.
Q: Does it have jumper settings?
A: No. This board has no hardware jumpers or user-set hardware configuration on the board itself.
Q: Can I swap it without changing wiring?
A: Only if the original wiring, terminal blocks, and system configuration already match the replacement. Always verify the OEM wiring diagram before power-up.
Q: Is it hot-swappable?
A: No. Power down the cabinet first unless the OEM documentation explicitly allows live replacement. Pulling it under power is a good way to create a new problem.
Q: Why is this part often sold as new surplus?
A: Because it is an obsolete installed-base item, not current production. New surplus usually means unused stock from old inventory, which explains the lower price.
Q: What should I verify before buying?
A: Confirm the full part number, terminal block style, cable compatibility, and whether your system is Mark VI or Mark VIe. That avoids the most common mismatch mistakes.
