IS200TBCIH2B - TBCI Contact Input Terminal Board | GE Mark VIe | B7B

IS200TBCIH2B is a General Electric TBCI Contact Input Terminal Board for GE SPEEDTRONIC™ Mark VIe control systems. The TBCI function supports discrete contact input operation with group isolation in turbine control and balance-of-plant applications that use the Mark VIe Terminal Board and I/O Hardware. It should be matched to the installed catalog number, hardware form, and cabinet configuration before it is used as a replacement.

GE documentation identifies the supported point information as 24 dry contact inputs wired to two barrier-type terminal blocks, with dc power used for contact excitation. The electrical or signal interface for this revision is documented as a 24 V dc wetting voltage. GE documentation lists this terminal board revision as a legacy version that is no longer in current production. The board supports simplex, dual, and TMR redundancy, with one, two, or three I/O packs plugged directly into the terminal board.

This component is typically considered when troubleshooting Mark VIe hardware, replacing a failed module, evaluating repair options, or maintaining spare inventory for turbine control systems. Before installation, verify the catalog number, hardware revision, and associated terminal board or I/O pack configuration against site documentation and OEM requirements. The OEM reference for this listing is GEH-6721 Vol I; GEH-6721 Vol II.

Control system parts are provided by GTC Control Solutions, Inc., a wholly owned subsidiary of B7B. Parts are offered in unused, repaired, or remanufactured condition, subject to availability. Each repaired or remanufactured component undergoes comprehensive functional testing in energized panels to guarantee reliability and performance. We provide detailed test reports and warranties with every repair, giving you confidence in the quality and longevity of your replacement parts.