{"product_id":"abb-tu841-3bse020848r1-redundant-module-termination-unit-s800-i-o","title":"ABB TU841 3BSE020848R1 Redundant Module Termination Unit | S800 I\/O","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eABB TU841 (3BSE020848R1)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003efunctions as a high-availability Redundant Module Termination Unit (MTU) within the S800 I\/O system. This unit provides the critical physical interface for 16-channel I\/O modules, enabling dual-module redundancy to eliminate single points of failure in mission-critical loops. We provide this component as\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e100% brand new, original factory equipment\u003c\/strong\u003e, ensuring seamless integration into your Advant or 800xA control architecture.\u003c\/p\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cp\u003eThe TU841 utilizes a dual-row terminal block design to manage high-density field wiring and redundant power distribution.\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003ctd\u003e\u003cstrong\u003eFeature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eTechnical Data\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\u003eArticle Number\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e3BSE020848R1\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eI\/O Channels\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e16 Channels\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eRedundancy Type\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eDual Module Redundancy (Module-to-Module)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eRated Voltage\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e50 V DC\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eMax Current per Channel\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e3 A\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eMax Process Current\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e10 A total\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eConnection Method\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eScrew Terminal Block\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eWire Gauge\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0.2 - 2.5 mm² (24 - 12 AWG)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eDielectric Test Voltage\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e500 V a.c.\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eMounting Orientation\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eHorizontal\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eEngineering Advantages\u003c\/h2\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eFault-Tolerant Operation:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe TU841 hosts two I\/O modules in a redundant pair. If one module detects an internal fault, the system shifts processing to the healthy module without interrupting field signals.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHot-Swap Capability:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThis MTU allows maintenance teams to replace a faulty I\/O module while the process remains live. The redundant architecture ensures the plant stays operational during hardware swaps.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eOptimized Power Routing:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe baseplate includes integrated process power distribution. This design removes the need for external fuse blocks or distribution strips, reducing potential failure points in the wiring chain.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSimplified Field Wiring:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe 16-channel layout provides two terminals per channel alongside dedicated process power and 0V return points. This organization accelerates commissioning and simplifies troubleshooting in high-density control cabinets.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFAQs\u003c\/h2\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWhich I\/O modules are compatible with the TU841?\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe TU841 supports a range of S800 I\/O modules requiring redundancy, including AI845, DI840, and DO840. Always check the specific module hardware revision for firmware compatibility.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the TU841 require a specific mounting direction?\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eYes. Mount the TU841 horizontally on a standard DIN rail. Horizontal mounting optimizes airflow across the redundant modules and ensures the locking mechanisms engage correctly.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCan I use the TU841 for single (non-redundant) module applications?\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eWhile the TU841 functions with a single module, engineers typically select the TU841 specifically to utilize its redundant capabilities. For non-critical loops, a single MTU (like the TU810) offers a more cost-effective footprint.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the condition of this unit?\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eWe guarantee this TU841 3BSE020848R1 is\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e100% Brand New\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eand arrives in original ABB packaging. We do not sell refurbished or \"new-surplus\" parts with compromised lifespans.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ABB","offers":[{"title":"Default Title","offer_id":53097962897592,"sku":"TU841 3BSE020848R1","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0935\/6132\/3704\/files\/TU8413BSE020848R1.jpg?v=1774488999","url":"https:\/\/www.globalpetroparts.com\/products\/abb-tu841-3bse020848r1-redundant-module-termination-unit-s800-i-o","provider":"Global Petro Parts Automation","version":"1.0","type":"link"}