{"product_id":"b-r-x20bb82-x20-system-expansion-bus-base-module","title":"B\u0026R X20BB82 X20 System Expansion Bus Base Module","description":"\u003ch3\u003eTechnical Overview\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eB\u0026amp;R X20BB82 (X20BB82)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a heavy-duty backplane bus base module featuring two integrated expansion slots, engineered as the foundational mechanical and electrical interconnect for the standard B\u0026amp;R X20 IO platform. Developed for deployment in complex automation panels within automotive assembly plants, maritime vessel controls, and energy distribution stations, this structural bus component handles internal communication routing and power distribution to eliminate signal degradation and minimize machine downtime. The module establishes the internal X2X Link data connection and coordinates the 24 VDC primary I\/O power bus across adjacent slices. Outfitted with heavy-duty internal backplane contacts, it delivers a permissible contact load of 10 A, allowing high-density digital and analog configurations to run continuously without overheating the panel assembly.\u003c\/p\u003e\n\u003ch3\u003eTechnical Configuration\u003c\/h3\u003e\n\u003cp\u003eThe mechanical architecture and backplane routing paths of this module are designed for flexible, high-density cabinet layouts:\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDual-Slot Infrastructure\u003c\/strong\u003e: Houses two distinct expansion slots on a single footprint, allowing technicians to plug in X20 I\/O modules, power supply components, or interface slices side-by-side.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eOmnidirectional Mounting\u003c\/strong\u003e: Supports both horizontal and vertical DIN rail installations without sacrificing mechanical retention or derating the internal 10 A contact bus.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eLow-Loss Bus Tap\u003c\/strong\u003e: Consumes a maximum of 0.70 W from the internal X2X Link communication bus, preserving the bulk of the system power for downstream processing logic.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eIP20 Finger-Safe Design\u003c\/strong\u003e: Complies fully with EN 60529 standards, providing a shielded backplane interface that prevents accidental contact with live components during maintenance windows.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003ctd\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecification\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\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eX20BB82\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eB\u0026amp;R\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eOrigin\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eAustria\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eProduct Type\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eX20 Bus Base Module\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eExpansion Slot Capacity\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e2 Slots\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eNominal Bus Voltage\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e24 VDC\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003ePermissible Contact Load\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e10 A\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eInternal Bus Power Consumption\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0.70 W\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eEnclosure Protection Rating\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eIP20 (per EN 60529)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eMounting Capability\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eHorizontal or Vertical DIN Rail\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eStandard Operating Elevation\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0 to 2000 m (No derating required)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eHigh-Altitude Operating Limit\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eAbove 2000 m (Derate ambient temperature by 0.5 deg C per 100 m)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0.18 kg (Shipping Weight: 2.0 kg pack)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eIndustrial Application FAQs\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHow does high-altitude deployment affect the X20BB82 module?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFor installations up to 2000 m above sea level, the module operates at full performance limits. When installed above 2000 m, the thinner air reduces convective thermal dissipation. To compensate, technicians must reduce the maximum ambient temperature limit of the cabinet by 0.5 deg C for every 100 m of elevation above the 2000 m threshold.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCan I mix different types of X20 modules on the two slots of this bus base?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. The X20BB82 provides standard mechanical and electrical interfaces across both slots. You can install any combination of standard X20 digital I\/O, analog input\/output, or functional counter modules that match the physical slot form factor, provided the total current consumption does not exceed the 10 A contact load limit.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWhat happens if the power distribution requirement exceeds the 10 A contact load limit?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe internal bus bars are rated for a maximum continuous current of 10 A. If your downstream I\/O modules pull more than 10 A combined, you must break the power bus by inserting an isolated X20 internal power supply module onto a new bus base farther down the DIN rail stack.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003eField Engineering and Installation Directives\u003c\/h3\u003e\n\u003cblockquote\u003e\n\u003cp\u003e\u003cstrong\u003eBACKPLANE INTERLOCK WARNING:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eNever slide bus base modules together along the DIN rail while the 24 VDC main power supply or X2X Link bus is energized. Arcing across the gold-plated slide contacts will pit the metal surface, resulting in permanent communication jitter or intermittent power failure.\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003ch4\u003eDIN Rail Alignment and Engagement\u003c\/h4\u003e\n\u003cp\u003eSnap the X20BB82 onto a standard 35 mm symmetric DIN rail. Slide the module firmly to the left to interlock its side contacts with the preceding bus base module. Ensure that the integrated locking lever on the top and bottom clicks completely into place. A misaligned bus base will prevent the plug-in I\/O modules from seating properly, causing internal bus communication faults.\u003c\/p\u003e\n\u003ch4\u003eMulti-Slot Shielding Rules\u003c\/h4\u003e\n\u003cp\u003eIf an expansion slot on the X20BB82 remains unoccupied during initial commissioning, install a standard X20 slot cover module over the empty pins. Leaving the internal backplane contacts exposed compromises the IP20 finger-safe rating and invites airborne conductive particulate matter or moisture to short-circuit the internal 24 VDC power rails.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"B\u0026R","offers":[{"title":"Default Title","offer_id":53086373773675,"sku":"X20BB82","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/x20bb82-uu05xixyhjy.png?v=1776138137","url":"https:\/\/www.plcprotech.com\/products\/b-r-x20bb82-x20-system-expansion-bus-base-module","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}