IS200WNPSH1A - WNPS Power Supply/Network Board | GE Mark VIe | B7B

IS200WNPSH1A is a General Electric WNPS Power Supply/Network Board for GE SPEEDTRONIC™ Mark VIe control systems. The WNPS function supports power / network support 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.

WNPS is a removable negative power supply daughterboard used on TVBAH#A and TVBAS#A vibration terminal boards (the function is integrated directly into the newer TVBAH#B and TVBAS2B boards). Each WNPS converts +28 V dc to -28 V dc to power vibration sensors and buffered outputs, with up to three daughterboards installed per TVBA (one per R, S, T channel) for a nominal -28 V dc output and 400 mA maximum current, and can be swapped without taking the terminal board offline. The documented form factor is an Option board / PWA daughterboard.

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.