{"product_id":"yokogawa-s9756uv-primary-power-supply-bus-unit","title":"Yokogawa S9756UV Primary Power Supply Bus Unit","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe \u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003eS9756UV\u003c\/strong\u003e\u003c\/span\u003e Primary Power Supply Bus Unit is an engineered industrial hardware component manufactured by \u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003eYokogawa\u003c\/strong\u003e\u003c\/span\u003e. This unit manages power distribution across automation racks and controller subracks. It ensures stable electrical distribution from primary power sources to individual slots. Global PLC Spare HUB's Insight highlights that reliable bus-level power isolation prevents downstream voltage fluctuations from triggering false controller trips in continuous process environments.\u003c\/p\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e \u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003eYokogawa\u003c\/strong\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eModel Number:\u003c\/strong\u003e \u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003eS9756UV\u003c\/strong\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Primary Power Supply Bus Unit\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInput Power Supply Voltage:\u003c\/strong\u003e 100 to 120 V AC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWithstanding Voltage:\u003c\/strong\u003e 1500 V AC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMax. Input Current (Unit):\u003c\/strong\u003e 20 A\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMax. Input Current (Port):\u003c\/strong\u003e 6 A\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompatible Cable Assembly:\u003c\/strong\u003e AEPV7D-1XX (100 V AC, 2 m length, one end unterminated)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin-top: 15px; margin-bottom: 15px;\"\u003e\n  \u003cthead\u003e\n    \u003ctr style=\"background-color: #f2f2f2;\"\u003e\n      \u003cth style=\"border: 1px solid #dddddd; padding: 8px; text-align: left;\"\u003eTerminal Pin Function\u003c\/th\u003e\n      \u003cth style=\"border: 1px solid #dddddd; padding: 8px; text-align: left;\"\u003eCore Wire Color\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #dddddd; padding: 8px;\"\u003ePower Phase \/ Live (Pin 4)\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #dddddd; padding: 8px;\"\u003e\u003cstrong\u003eBlack\u003c\/strong\u003e\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #dddddd; padding: 8px;\"\u003ePower Neutral (Pin 2)\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #dddddd; padding: 8px;\"\u003e\u003cstrong\u003eWhite\u003c\/strong\u003e\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #dddddd; padding: 8px;\"\u003eProtective Earth (Pin 1)\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #dddddd; padding: 8px;\"\u003e\u003cstrong\u003eGreen\u003c\/strong\u003e\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eInstallation Guide\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMounting Environment:\u003c\/strong\u003e Install the \u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003eS9756UV\u003c\/strong\u003e\u003c\/span\u003e inside a grounded metallic control cabinet away from high-power inverter drives to minimize electromagnetic coupling.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBus Bar Securing:\u003c\/strong\u003e Torque all terminal connection screws to manufacturer-specified inch-pounds to prevent high-resistance thermal hotspots during peak 20 A load draws.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCabling Protocol:\u003c\/strong\u003e Match the unterminated \u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003eAEPV7D-1XX\u003c\/strong\u003e\u003c\/span\u003e cable leads precisely: connect Black to terminal 4, White to terminal 2, and Green to terminal 1.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eDebugging and Maintenance Convenience\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVisual Inspection:\u003c\/strong\u003e Check the terminal blocks periodically for signs of oxidation or thermal discoloration on wire insulation.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVoltage Verification:\u003c\/strong\u003e Measure input voltage directly across terminal pins 4 and 2 using a calibrated multimeter to confirm stable 100 to 120 V AC delivery before energizing downstream modules.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGround Integrity:\u003c\/strong\u003e Validate that the green earth wire maintains continuous continuity resistance below 0.1 ohms to cabinet ground buses.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCompatibility \u0026amp; Diagnostics\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSystem Architecture:\u003c\/strong\u003e Fully compatible with \u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003eYokogawa\u003c\/strong\u003e\u003c\/span\u003e distributed control system racks requiring centralized AC power buses.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDiagnostic Capability:\u003c\/strong\u003e The unit supports passive continuity testing and dielectric withstanding voltage checks up to 1500 V AC for periodic safety compliance verification.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGlobal PLC Spare HUB Review:\u003c\/strong\u003e Field engineers note that verifying port load currents under 6 A per channel prevents premature thermal breaker tripping during heavy field device activation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Application Scenarios\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOil and Gas Refineries:\u003c\/strong\u003e Distributing regulated AC power to control room safety instrumented system racks.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePower Generation Plants:\u003c\/strong\u003e Supplying auxiliary control instrumentation cabinets with isolated electrical feeds.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChemical Processing Facilities:\u003c\/strong\u003e Powering local input\/output node enclosures in harsh production environments.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCertifications, Logistics, and Warranty\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCertifications:\u003c\/strong\u003e Manufactured in compliance with industrial electrical safety and electromagnetic compatibility standards.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLogistics \u0026amp; Dispatch:\u003c\/strong\u003e Fast 24-48 hour dispatch window utilizing reliable international carriers including \u003cstrong\u003eFedEx\u003c\/strong\u003e, \u003cstrong\u003eUPS\u003c\/strong\u003e, and \u003cstrong\u003eDHL\u003c\/strong\u003e.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWarranty Terms:\u003c\/strong\u003e Covered by a comprehensive \u003cstrong\u003e12-month warranty\u003c\/strong\u003e from the date of shipment.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePacking List:\u003c\/strong\u003e One \u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003eS9756UV\u003c\/strong\u003e\u003c\/span\u003e Primary Power Supply Bus Unit and standard installation technical documentation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions (FAQ)\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What causes intermittent power drops on the \u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003eS9756UV\u003c\/strong\u003e\u003c\/span\u003e unit?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: Loose terminal screw connections on the \u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003eAEPV7D-1XX\u003c\/strong\u003e\u003c\/span\u003e input cable typically cause resistance heating and voltage sags under high loads. Retightening terminal screws resolves this issue.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Can the \u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003eS9756UV\u003c\/strong\u003e\u003c\/span\u003e handle input voltages outside 100 to 120 V AC?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: No. Operating this unit outside its rated 100 to 120 V AC window risks damaging internal components and invalidating the 1500 V AC dielectric withstanding rating.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: How do I select the correct replacement cable for this bus unit?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: Ensure the replacement harness matches the \u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003eAEPV7D-1XX\u003c\/strong\u003e\u003c\/span\u003e specification, featuring proper wire gauge sizing, a 2-meter length, and correct color-coded core mapping.\u003c\/p\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":45014044836022,"sku":"S9756UV","price":162.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0722\/7863\/8774\/files\/S9758UV_f9436e02-72c3-48d0-9959-8ccc13c696cf.jpg?v=1789355225","url":"https:\/\/www.plcsparehub.com\/products\/yokogawa-s9756uv-primary-power-supply-bus-unit","provider":"Global PLC Spare Hub","version":"1.0","type":"link"}