IS200JGNDG1A - JGND Ground Termination Card | GE Mark VIe | B7B

IS200JGNDG1A is a General Electric JGND Shield Ground terminal board for GE SPEEDTRONIC™ Mark VIe control systems. The JGND function supports shield grounding operation 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 JGND as a terminal board that mounts alongside a host terminal board on a sheet metal bracket, providing convenient ground connections for customer shield drain wires. The board offers 24 terminals on a Euro-type terminal block, with one or two JGND boards supported per mounting location for up to 48 total ground connections. Board dimensions are documented as 3.175 cm high x 12.7 cm wide (1.25 in x 5.0 in). The component is supplied as a Board/PWA hardware assembly.

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.