{"product_id":"snb10d-225-cu2n-yokogawa-safety-node-unit","title":"SNB10D-225\/CU2N  Yokogawa Safety Node Unit","description":"\u003ch2\u003eProduct Description\u003c\/h2\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eSNB10D-225\/CU2N\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a mission-critical safety node unit engineered for the Yokogawa ProSafe-RS Safety Instrumented System (SIS) platform. This 19-inch rack-mount chassis provides the physical and electrical environment required for high-integrity safety I\/O processing, including power distribution, communication backplane connectivity, and module protection for SIL3-certified safety applications.\u003c\/p\u003e\n\u003cp\u003eDesigned for high-availability industrial safety operations, the SNB10D-225\/CU2N features dual-redundant power supply architecture to prevent single-point electrical failures from affecting safety loop functionality. The chassis is coated with conformal protection compliant with ISA G3 corrosive environment standards, allowing reliable deployment in chemically aggressive atmospheres.\u003c\/p\u003e\n\u003cp\u003eThe integrated CU2N connector unit (S9342FA) enables high-speed communication with the Extended System Bus (ESB), ensuring deterministic data synchronization between safety nodes and the central safety control station for real-time protection logic execution.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel Configuration\u003c\/td\u003e\n\u003ctd\u003eSNB10D-225\/CU2N\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRedundancy\u003c\/td\u003e\n\u003ctd\u003eDual-redundant power supply architecture\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage\u003c\/td\u003e\n\u003ctd\u003e220 – 240 V AC (50\/60 Hz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBus Interface\u003c\/td\u003e\n\u003ctd\u003eCU2N Connector Unit (S9342FA) for ESB linkage\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnvironmental Protection\u003c\/td\u003e\n\u003ctd\u003eISA G3 corrosion resistance\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e–20°C to +70°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSafety Integrity Level\u003c\/td\u003e\n\u003ctd\u003eDesigned for SIL3 applications (with certified I\/O modules)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eI\/O Capacity\u003c\/td\u003e\n\u003ctd\u003eSupports ProSafe-RS I\/O modules\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting\u003c\/td\u003e\n\u003ctd\u003e19-inch rack mount, 5U height\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e482.6 mm × 221 mm × 205 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e 5.9 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003chr\u003e\n\u003ch2\u003eApplication\u003c\/h2\u003e\n\u003cp\u003eThe SNB10D-225\/CU2N is widely deployed in:\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eEmergency Shutdown Systems (ESD)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFire and Gas Detection Systems (F\u0026amp;G)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eBurner Management Systems (BMS)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eOffshore oil and gas production platforms\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eChemical and petrochemical processing plants\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIt is particularly suitable for safety-critical automation environments where high reliability, corrosion resistance, and extended temperature operation are required.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eTechnical FAQ\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the SNB10D-225\/CU2N include I\/O modules?\u003c\/strong\u003e\u003cbr\u003eNo. The SNB10D-225\/CU2N is a base node chassis. Safety I\/O modules such as the SAI143 or SDI141 must be purchased separately according to application requirements.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the function of the CU2N option?\u003c\/strong\u003e\u003cbr\u003eThe CU2N (S9342FA) serves as the ESB communication interface, enabling data exchange between the safety node and the Safety Control Station. Without this connector, network communication cannot be established.\u003c\/p\u003e","brand":"YOKOGAWA","offers":[{"title":"Default Title","offer_id":51849285665080,"sku":"SNB10D-225\/CU2N","price":188.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0893\/1616\/3896\/files\/SNB10D-225CU2N2.jpg?v=1772502776","url":"https:\/\/www.automodulexpert.com\/products\/snb10d-225-cu2n-yokogawa-safety-node-unit","provider":"AutoModuleXpert Ltd.","version":"1.0","type":"link"}