IS220PPRAS1B - PPRA SIL Turbine Protection I/O Pack | GE Mark VIeS | B7B

IS220PPRAS1B is a General Electric PPRA SIL Turbine Protection I/O Pack for GE SPEEDTRONIC™ Mark VIeS Safety control systems. The PPRA function supports aero-derivative turbine emergency trip protection operation in turbine control and balance-of-plant applications that use the Mark VIeS 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 48 points of Aero-derivative Turbine Emergency Trip when this I/O pack is used with WREAS1A and TREAS#A terminal boards (3-pack configuration). PPRAS1B is documented as an IEC 61508 safety-certified function and as the migration target replacing the earlier PPRAH1A pack. It should be matched with the compatible WREA and TREA terminal boards where that pairing is used in the site configuration.

This component is typically considered when troubleshooting Mark VIeS Safety hardware, replacing a failed module, evaluating repair options, or maintaining spare inventory for turbine protection 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.