{"product_id":"12-slot-expansion-rack-module-honeywell-900r12r-0300","title":"12-Slot Expansion Rack Module | Honeywell 900R12R-0300","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eHoneywell 900R12R-0300\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eserves as the high-capacity foundation for the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eHC900 Hybrid Control System\u003c\/strong\u003e. This 12-slot chassis provides the mechanical framework and electrical backplane required to house and interconnect a full array of HC900 I\/O modules. It facilitates seamless communication between remote I\/O points and the central CPU, ensuring deterministic data transfer in complex process environments. We supply this rack as\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e100% Brand New and Original\u003c\/strong\u003e, specifically designed to handle critical power distribution and signal routing for large-scale industrial automation.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003ctd\u003e\u003cstrong\u003eAttribute\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eValue\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eModel Number\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e900R12R-0300\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eRack Capacity\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e12 Module Slots\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eCompatible Modules\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eAnalog I\/O, Digital I\/O, Communication Modules\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eBackplane Bus\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eHigh-speed Serial Communication\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003ePower Input\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e24 VDC (via 900PSM series Power Modules)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eRedundancy\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eSupports Redundant Power Supply Configuration\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eMounting Standard\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e19-inch Rack Mount or Panel Mount\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eOperating Temp\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0°C to +60°C (32°F to 140°F)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e482 × 137 × 137 mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eProtection Rating\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eIP20 (Cabinet Installation Required)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eEngineering Advantages\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHigh-Density Scalability:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe 12-slot architecture maximizes I\/O density within a standard 19-inch rack footprint. This allows engineers to consolidate extensive point counts—including thermocouples, RTDs, and discrete signals—into a single managed location, significantly reducing cabinet space requirements.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eRedundant Power Infrastructure:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe \"R\" designation confirms that this rack supports redundant power module inputs. This configuration eliminates power supply failure as a single point of failure, ensuring continuous uptime for critical loops in chemical, pharmaceutical, and power generation plants.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDistributed I\/O Efficiency:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThis rack enables the placement of I\/O close to field instruments. By decentralizing the hardware, the system minimizes long-run copper wiring, which reduces installation labor costs and shields sensitive analog signals from electromagnetic interference (EMI).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHigh-Speed Serial Backplane:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe integrated serial bus manages data synchronization between modules at high velocities. This ensures that time-critical PID control and safety logic execute without the latency issues found in non-specialized chassis.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eThermal Management Design:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe chassis geometry promotes natural convection cooling. It prevents heat buildup even when fully populated with high-current digital output modules, maintaining stable operations in ambient temperatures up to 60°C.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFAQs\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the 900R12R-0300 include the Power Supply Modules (PSM)?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo. The 900R12R-0300 is the rack\/chassis only. You must select and purchase the 900PSM series power modules separately based on your specific power and redundancy requirements.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eIs the 900R12R-0300 backward compatible with older HC900 modules?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes, the rack supports standard HC900 series I\/O modules. However, always verify your current CPU firmware version to ensure full software support for the 12-slot remote station configuration.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the difference between the 900R12R-0200 and the 900R12R-0300?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe -0300 suffix represents the latest hardware revision, offering improved electrical shielding and modern manufacturing standards while maintaining full functional compatibility with previous versions.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this rack support \"Hot-Swapping\" of modules?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. When used within the HC900 architecture, the 900R12R-0300 backplane allows for the removal and replacement of I\/O modules under power, provided you follow the standard safety procedures to prevent process disruption.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":43187828555866,"sku":"900R12R-0300","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/400._68005300-7cba-4a58-b779-18b04ae1fb45.jpg?v=1775546734","url":"https:\/\/www.spareoil.com\/products\/12-slot-expansion-rack-module-honeywell-900r12r-0300","provider":"SpareOil Automation","version":"1.0","type":"link"}