Description
GE IS200TBCIH1CCD – Contact Input Terminal Board for Mark VI Discrete Signal Acquisition
The GE IS200TBCIH1CCD is a TBCI-series contact input terminal board used in Mark VI turbine control cabinets to bring field dry/wet contacts into the control system with proper isolation and filtering. From my experience, it’s the board you choose when you need dependable, high-density discrete status monitoring—think limit switches, permissives, interlocks, and protection circuits on gas/steam turbines and balance-of-plant systems. You might notice that it drops straight into existing Mark VI terminal racks and mates to the discrete input processing cards via ribbon cables, keeping wiring neat and service-friendly.
Company’s Order Placement Process and Guarantees
- Warranty: 365 days
- Delivery: 1 week if in stock; no more than one month at the latest
- Payment: 50% advance payment; full payment prior to delivery
- Express options: FedEx, UPS, DHL
- Every unit is function-checked before shipment, and anti-static packaging is used for transit safety.
Key Features
- Purpose-built for discrete contacts – Optimized for on/off status signals commonly found in turbine and BOP panels.
- Wide wetting voltage support – Typically accommodates 24/48/125 VDC wetting, so mixed legacy and new circuits are easier to manage.
- Optical isolation per channel – Helps protect controller-side electronics against field transients and ground loops.
- Noise filtering/debounce – In many cases reduces chattering from mechanical contacts and electrical noise from nearby drives.
- Barrier terminal blocks – Straightforward field wiring and maintenance; labeling is intuitive for technicians.
- Ribbon-cable interface to Mark VI I/O – Typically connects via JR/JS/JT connectors to discrete input processing boards in the rack.
- Fits standard Mark VI cabinets – Mechanical layout matches GE’s terminal board footprint, so replacements are quick.
“We swapped in IS200TBCIH1 units across a mixed 24/125 VDC panel and the input stability was immediately better—less nuisance alarms during motor starts.” — Maintenance Supervisor, combined-cycle site
Technical Specifications
| Brand / Model | GE / IS200TBCIH1CCD |
| Series / Role | Mark VI – TBCI Contact Input Terminal Board (discrete inputs) |
| HS Code (reference) | 8538.90 (Parts suitable for use with apparatus of 8535/8536/8537) |
| Field Input Type | Dry/wet contacts with optical isolation and hardware filtering |
| Typical Wetting Voltage | 24 VDC, 48 VDC, or 125 VDC (site-configured) |
| Interfaces to Controller | Ribbon-cable connectors to Mark VI discrete input processing boards (e.g., VME-based cards) |
| Field Wiring | Barrier terminal blocks (screw clamp), shield drain provisions recommended |
| Power Requirements | No separate board supply; channels draw from the field wetting source |
| Installation Method | Panel/rack mounting inside Mark VI cabinet; observe grounding and segregation practices |
Related or Supporting Products
- GE IS200TBCOH1x – Contact Output Terminal Board. Pairs with relay/driver output cards when you need to actuate devices; the TBCI is for inputs, TBCO is for outputs.
- GE IS200VCCC – Discrete input processing board used in Mark VI VME racks. The TBCI typically connects to VCCC via ribbon cables for channel acquisition.
- GE IS200TBCIH1 (other revisions) – Hardware revisions within the TBCI family can vary by channel mapping or supported wetting voltage range; always verify the “H” and suffix letters against your I/O list.
- Shielded multi-core cable kits – Often specified for field contact wiring to reduce noise pickup around VFDs and large motor starters.
Installation & Maintenance
- Cabinet environment – Install inside a clean, dry Mark VI control cabinet with adequate ventilation. From my experience, keeping ambient within typical control-room conditions greatly improves longevity.
- Wiring practices – Use twisted, shielded pairs for long runs. Terminate shields at a single end (cabinet earth) to minimize ground loops. Separate high-voltage or noisy motor leads from signal wiring.
- Grounding and bonding – Ensure the terminal board mounting and cable shields are properly bonded to the panel ground bar.
- Polarity & wetting voltage – Verify contact polarity and the selected wetting voltage group before energization. You might notice that mis-matched wetting can lead to false states or missed transitions.
- Safety – Isolate the wetting supply and lockout/tagout before any terminal service. Confirm zero energy with a meter.
- Routine checks – Periodically re-torque terminal screws, inspect for discoloration or loose conductors, clean dust with ESD-safe methods, and review diagnostics for chattering inputs.
- Firmware/configuration – Channel behavior is typically defined in the controller; after hardware swaps, validate point configuration and debounce settings in the Mark VI toolbox.
Quality & Certifications
- Manufactured for use in GE Mark VI control systems that are typically CE-compliant at the cabinet/system level.
- UL/CSA and other approvals generally apply to the complete control cabinet; board-level markings may vary by revision and production year.
- RoHS status can vary with legacy spares; we can check a specific serial/revision on request.
- Backed by a 365-day warranty with pre-shipment functional checks.
Reviews
There are no reviews yet.