{"product_id":"tu811b-3bse013231r1-abb-s800-i-o-module-terminal-unit","title":"TU811B 3BSE013231R1 ABB S800 I\/O Module Terminal Unit","description":"\u003ch2\u003eABB TU811V1 3BSE013231R1 Compact Module Termination Unit\u003c\/h2\u003e\n\u003cp\u003eConfigured for passive field wiring termination and bus signal distribution in ABB S800 I\/O platforms, the \u003cstrong\u003eABB 3BSE013231R1\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eTU811V1\u003c\/strong\u003e Compact Module Termination Unit, provides direct physical\/electrical execution.\u003c\/p\u003e\n\u003ch3\u003eSuffix Breakdown \u0026amp; Model Matrix\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eDesignation Part\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eComponent Code\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eHardware Function Description\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTermination Unit\u003c\/td\u003e\n\u003ctd\u003eIdentifies the physical backplane baseplate for field wiring interfaces.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e811\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e811 Base Design\u003c\/td\u003e\n\u003ctd\u003eSpecifies an 8-channel compact footprint for standard DIN-rail mounting setups.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eV1\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eVersion 1 Hardware\u003c\/td\u003e\n\u003ctd\u003eDenotes standard compact wiring layout revision with integrated ModuleBus pass-through.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e3BSE013231R1\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCommercial Part Number\u003c\/td\u003e\n\u003ctd\u003eStandard manufacturing ordering code for the TU811V1 assembly.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTU811V1 (3BSE013231R1)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eABB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOrigin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSweden\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.2 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e58.5 mm x 64 mm x 170 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Temp\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0 to 55 deg C (Horizontal mounting), 0 to 40 deg C (Vertical mounting)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Consumption\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePassive (No active power dissipation)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eChannels\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e8 isolated field channels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNominal Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e250 VDC\/VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaximum Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3 A per channel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDielectric Strength\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2000 VAC test voltage\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eConductor Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSolid: 0.2 to 4.0 mm2; Stranded: 0.2 to 2.5 mm2 (24 to 12 AWG)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEnclosure Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIP20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eBackplane Bus Communication \u0026amp; I\/O Scaling\u003c\/h3\u003e\n\u003cp\u003eThe unit routes internal ModuleBus signals across adjacent S800 termination bases while establishing automatic slot addressing through physical position shift logic. High-density I\/O configurations depend on this bus pass-through mechanism to maintain low signal latency and deterministic update execution across attached I\/O modules, such as DI820, DI821, DO820, and DO821. Furthermore, the passive backplane architecture isolates high-voltage field wiring loops from sensitive internal logic circuits, maintaining reliable bus performance under continuous operational loads.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: How does the mechanical keying feature prevent hardware damage?\u003c\/p\u003e\n\u003cp\u003eA: Two six-position mechanical coding pegs allow up to 36 distinct physical keying combinations. Setting these keys prevents operators from inserting incompatible S800 I\/O modules into slots wired for higher voltages or different signal types, protecting internal circuitry without altering electrical functionality.\u003c\/p\u003e\n\u003cp\u003eQ: What environmental thermal limits apply when installing the unit vertically?\u003c\/p\u003e\n\u003cp\u003eA: Vertical mounting reduces heat convection efficiency across installed I\/O modules. Consequently, operating temperature limits decrease from 55 deg C (horizontal standard orientation) to a maximum of 40 deg C in vertical setups.\u003c\/p\u003e\n\u003cp\u003eQ: How does the unit complete backplane bus grounding?\u003c\/p\u003e\n\u003cp\u003eA: The chassis integrates a spring-loaded mechanical latching device that clamps directly onto the metallic DIN rail. This latch secures the module mechanically while providing low-impedance grounding paths to mitigate electrical noise.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eMount the unit directly onto a standard 35 mm DIN rail inside an IP54 or better protective enclosure. Ensure the DIN rail maintains a clean metallic surface to establish proper earthing via the module latch mechanism.\u003c\/p\u003e\n\u003cp\u003eStrip field conductors to a precise length of 7 mm before securing them into the terminal block. Tighten terminal screws to a torque between 0.5 Nm and 0.6 Nm to maintain gas-tight wire retention without stripping threads.\u003c\/p\u003e\n\u003cp\u003eAlign mechanical keying pegs to match the assigned S800 I\/O module profile prior to slot insertion. Verify that field wiring routing maintains adequate physical separation from high-noise power cabling to minimize signal interference.\u003c\/p\u003e","brand":"ABB","offers":[{"title":"Default Title","offer_id":52938548838712,"sku":"TU811B 3BSE013231R1","price":188.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0893\/1616\/3896\/files\/548.jpg?v=1789099202","url":"https:\/\/www.automodulexpert.com\/products\/tu811b-3bse013231r1-abb-s800-i-o-module-terminal-unit","provider":"AutoModuleXpert Ltd.","version":"1.0","type":"link"}