{"product_id":"general-electric-4176j86-g01-speedtronic-circuit-board","title":"General Electric 4176J86-G01 Speedtronic Circuit Board","description":"\u003cp\u003eThe \u003cstrong\u003eGeneral Electric 4176J86-G01\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e4176J86\u003c\/strong\u003e Speed\/Over-Speed Control Board, operates as a dedicated hardware component for speed signal processing and over-speed trip execution within GE Mark III gas turbine control systems.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003e4176J86-G01\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eGeneral Electric (GE)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003eStandard Rack Card Assembly\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eStandard GE PCB Assembly Dimensions\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e0 to +70 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e5 VDC Onboard Logic Feed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Voltage\u003c\/td\u003e\n\u003ctd\u003e5 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCircuit Type\u003c\/td\u003e\n\u003ctd\u003eSpeed \/ Over-Speed (SP\/OV) Control PCB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem Compatibility\u003c\/td\u003e\n\u003ctd\u003eGE Mark III Turbine Control Systems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eBackplane Bus Dynamics and Firmware Flash Compatibility\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eGeneral Electric 4176J86-G01\u003c\/strong\u003e module interfaces directly with standard rack backplanes to perform low-latency speed calculations and trip monitoring. Essential performance characteristics include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBackplane Bus Communication Velocity: Interfaces with internal bus architectures to execute high-speed signal updates without processing delay.\u003c\/li\u003e\n\u003cli\u003eDeterministic Over-Speed Detection: Evaluates pulse frequency signals against defined hardware trip thresholds to trigger emergency turbine shutdown loops.\u003c\/li\u003e\n\u003cli\u003eFirmware Flash Compatibility: Maintains full hardware execution alignment with native GE Mark III rack controller firmware revisions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Can the 4176J86-G01 module be removed or inserted while backplane power is active?\u003c\/p\u003e\n\u003cp\u003eA: No. Hot-swapping the speed control board can cause electrical transients and falsely trip connected turbine safety channels. De-energize system rack power prior to removal or insertion.\u003c\/p\u003e\n\u003cp\u003eQ: What primary operating voltage is required for internal logic components on the board?\u003c\/p\u003e\n\u003cp\u003eA: The board operates from a regulated 5 VDC power supply distributed via the backplane assembly.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eEnsure full electrical isolation of the card enclosure backplane before inserting or removing the printed circuit board assembly.\u003c\/li\u003e\n\u003cli\u003eWear a grounded ESD protective wrist strap during installation to prevent static discharge to onboard semiconductors.\u003c\/li\u003e\n\u003cli\u003eAlign the circuit board with enclosure card guides and press firmly to fully engage the edge connectors with the backplane receptacle.\u003c\/li\u003e\n\u003cli\u003eKeep all speed sensor cabling shielded with shield terminations anchored to the designated panel earth terminal block.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"General Electric","offers":[{"title":"Default Title","offer_id":48540529623230,"sku":"4176J86-G01","price":320.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/1145\/5422\/files\/screenshot_2026-08-05_17-21-33_751faab4-4cfd-4b8d-9ef2-0f9dfcc8e240.png?v=1785979327","url":"https:\/\/www.autooiltech.com\/es\/products\/general-electric-4176j86-g01-speedtronic-circuit-board","provider":"AutoOilTech Limited","version":"1.0","type":"link"}