{"product_id":"tu846-abb-passive-mtu-for-redundant-industrial-i-o","title":"TU846 ABB | Passive MTU for Redundant Industrial I\/O","description":"\u003ch2 data-start=\"1142\" data-end=\"1188\"\u003e\u003cstrong data-start=\"1145\" data-end=\"1188\"\u003eABB TU846 Module Termination Unit (MTU)\u003c\/strong\u003e\u003c\/h2\u003e\n\u003ch3 data-start=\"1190\" data-end=\"1206\"\u003e\u003cstrong data-start=\"1194\" data-end=\"1206\"\u003eOverview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1207\" data-end=\"1477\"\u003eThe \u003cstrong data-start=\"1211\" data-end=\"1224\"\u003eABB TU846\u003c\/strong\u003e is a \u003cstrong data-start=\"1230\" data-end=\"1263\"\u003eModule Termination Unit (MTU)\u003c\/strong\u003e engineered for \u003cstrong data-start=\"1279\" data-end=\"1303\"\u003eABB S800 I\/O systems\u003c\/strong\u003e and \u003cstrong data-start=\"1308\" data-end=\"1342\"\u003eCI840\/CI840A redundant modules\u003c\/strong\u003e.\u003cbr data-start=\"1343\" data-end=\"1346\"\u003eIt provides \u003cstrong data-start=\"1358\" data-end=\"1381\"\u003epassive termination\u003c\/strong\u003e, connecting \u003cstrong data-start=\"1394\" data-end=\"1439\"\u003epower supply, dual electrical ModuleBuses\u003c\/strong\u003e, and \u003cstrong data-start=\"1445\" data-end=\"1474\"\u003edual CI840\/CI840A modules\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"1479\" data-end=\"1801\"\u003eThis unit features \u003cstrong data-start=\"1498\" data-end=\"1519\"\u003emechanical keying\u003c\/strong\u003e to prevent incorrect module installation.\u003cbr data-start=\"1561\" data-end=\"1564\"\u003eDual \u003cstrong data-start=\"1569\" data-end=\"1588\"\u003erotary switches\u003c\/strong\u003e allow station address configuration from 0–99.\u003cbr data-start=\"1635\" data-end=\"1638\"\u003eThe \u003cstrong data-start=\"1642\" data-end=\"1651\"\u003eTU846\u003c\/strong\u003e supports optical ModuleBus connections via \u003cstrong data-start=\"1695\" data-end=\"1704\"\u003eTB842\u003c\/strong\u003e and \u003cstrong data-start=\"1709\" data-end=\"1718\"\u003eTB846\u003c\/strong\u003e, offering flexible and scalable communication for industrial automation systems.\u003c\/p\u003e\n\u003chr data-start=\"1803\" data-end=\"1806\"\u003e\n\u003ch3 data-start=\"1808\" data-end=\"1840\"\u003e\u003cstrong data-start=\"1812\" data-end=\"1840\"\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cdiv class=\"_tableContainer_1rjym_1\"\u003e\n\u003cdiv class=\"group _tableWrapper_1rjym_13 flex w-fit flex-col-reverse\" tabindex=\"-1\"\u003e\n\u003ctable data-start=\"1842\" data-end=\"2625\" class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead data-start=\"1842\" data-end=\"1869\"\u003e\n\u003ctr data-start=\"1842\" data-end=\"1869\"\u003e\n\u003cth data-start=\"1842\" data-end=\"1858\" data-col-size=\"sm\"\u003eSpecification\u003c\/th\u003e\n\u003cth data-start=\"1858\" data-end=\"1869\" data-col-size=\"md\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody data-start=\"1899\" data-end=\"2625\"\u003e\n\u003ctr data-start=\"1899\" data-end=\"1931\"\u003e\n\u003ctd data-start=\"1899\" data-end=\"1918\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"1901\" data-end=\"1917\"\u003eModel Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-start=\"1918\" data-end=\"1931\"\u003e\u003cstrong data-start=\"1920\" data-end=\"1929\"\u003eTU846\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"1932\" data-end=\"1966\"\u003e\n\u003ctd data-start=\"1932\" data-end=\"1950\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"1934\" data-end=\"1949\"\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-start=\"1950\" data-end=\"1966\"\u003e3BSE022460R1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"1967\" data-end=\"2019\"\u003e\n\u003ctd data-start=\"1967\" data-end=\"1986\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"1969\" data-end=\"1985\"\u003eProduct Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-start=\"1986\" data-end=\"2019\"\u003eModule Termination Unit (MTU)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2020\" data-end=\"2077\"\u003e\n\u003ctd data-start=\"2020\" data-end=\"2047\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"2022\" data-end=\"2046\"\u003eSystem Compatibility\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-start=\"2047\" data-end=\"2077\"\u003eABB S800 I\/O, CI840\/CI840A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2078\" data-end=\"2108\"\u003e\n\u003ctd data-start=\"2078\" data-end=\"2097\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"2080\" data-end=\"2096\"\u003ePower Supply\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-start=\"2097\" data-end=\"2108\"\u003e24 V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2109\" data-end=\"2170\"\u003e\n\u003ctd data-start=\"2109\" data-end=\"2137\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"2111\" data-end=\"2136\"\u003eCommunication Support\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-start=\"2137\" data-end=\"2170\" data-col-size=\"md\"\u003ePROFIBUS, HART, Modbus, AO\/AI\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2171\" data-end=\"2259\"\u003e\n\u003ctd data-start=\"2171\" data-end=\"2195\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"2173\" data-end=\"2194\"\u003eModuleBus Support\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-start=\"2195\" data-end=\"2259\" data-col-size=\"md\"\u003eDual electrical ModuleBus + optional optical via TB842\/TB846\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2260\" data-end=\"2319\"\u003e\n\u003ctd data-start=\"2260\" data-end=\"2288\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"2262\" data-end=\"2287\"\u003eAddress Configuration\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-start=\"2288\" data-end=\"2319\" data-col-size=\"md\"\u003eDual rotary switches (0–99)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2320\" data-end=\"2395\"\u003e\n\u003ctd data-start=\"2320\" data-end=\"2344\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"2322\" data-end=\"2343\"\u003eMechanical Keying\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-start=\"2344\" data-end=\"2395\" data-col-size=\"md\"\u003e4 keys (2 per CI840 position), 6 positions each\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2396\" data-end=\"2452\"\u003e\n\u003ctd data-start=\"2396\" data-end=\"2425\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"2398\" data-end=\"2424\"\u003eDimensions (W × H × D)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-start=\"2425\" data-end=\"2452\" data-col-size=\"md\"\u003e124 mm × 186 mm × 47 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2453\" data-end=\"2484\"\u003e\n\u003ctd data-start=\"2453\" data-end=\"2466\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"2455\" data-end=\"2465\"\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-start=\"2466\" data-end=\"2484\" data-col-size=\"md\"\u003e0.5 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2485\" data-end=\"2531\"\u003e\n\u003ctd data-start=\"2485\" data-end=\"2513\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"2487\" data-end=\"2512\"\u003eOperating Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-start=\"2513\" data-end=\"2531\" data-col-size=\"md\"\u003e–20°C to +60°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2532\" data-end=\"2625\"\u003e\n\u003ctd data-start=\"2532\" data-end=\"2556\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"2534\" data-end=\"2555\"\u003eApplication Areas\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-start=\"2556\" data-end=\"2625\" data-col-size=\"md\"\u003eRedundant I\/O systems, distributed control, industrial automation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003chr data-start=\"2627\" data-end=\"2630\"\u003e\n\u003ch3 data-start=\"2632\" data-end=\"2644\"\u003e\u003cstrong data-start=\"2636\" data-end=\"2644\"\u003eFAQs\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2646\" data-end=\"2778\"\u003e\u003cstrong data-start=\"2646\" data-end=\"2687\"\u003eQ1: Is the ABB TU846 genuine and new?\u003c\/strong\u003e\u003cbr data-start=\"2687\" data-end=\"2690\"\u003e✅ Yes, the \u003cstrong data-start=\"2701\" data-end=\"2710\"\u003eTU846\u003c\/strong\u003e is \u003cstrong data-start=\"2714\" data-end=\"2745\"\u003e100% original and brand new\u003c\/strong\u003e, supplied directly by \u003cstrong data-start=\"2768\" data-end=\"2775\"\u003eABB\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"2780\" data-end=\"2912\"\u003e\u003cstrong data-start=\"2780\" data-end=\"2815\"\u003eQ2: Do you have TU846 in stock?\u003c\/strong\u003e\u003cbr data-start=\"2815\" data-end=\"2818\"\u003e✅ Yes, inventory is \u003cstrong data-start=\"2838\" data-end=\"2847\"\u003eready\u003c\/strong\u003e, with shipping \u003cstrong data-start=\"2863\" data-end=\"2884\"\u003e3 days to 2 weeks\u003c\/strong\u003e, depending on order size.\u003c\/p\u003e\n\u003cp data-start=\"2914\" data-end=\"3060\"\u003e\u003cstrong data-start=\"2914\" data-end=\"2960\"\u003eQ3: How is the station address configured?\u003c\/strong\u003e\u003cbr data-start=\"2960\" data-end=\"2963\"\u003e✅ Using \u003cstrong data-start=\"2971\" data-end=\"2995\"\u003edual rotary switches\u003c\/strong\u003e, allowing addresses from \u003cstrong data-start=\"3021\" data-end=\"3032\"\u003e0 to 99\u003c\/strong\u003e for CI840\/CI840A modules.\u003c\/p\u003e\n\u003cp data-start=\"3062\" data-end=\"3189\"\u003e\u003cstrong data-start=\"3062\" data-end=\"3113\"\u003eQ4: Can the TU846 connect to optical ModuleBus?\u003c\/strong\u003e\u003cbr data-start=\"3113\" data-end=\"3116\"\u003e✅ Yes, via \u003cstrong data-start=\"3127\" data-end=\"3146\"\u003eTB842 and TB846\u003c\/strong\u003e, providing flexible optical connections.\u003c\/p\u003e\n\u003cp data-start=\"3191\" data-end=\"3342\"\u003e\u003cstrong data-start=\"3191\" data-end=\"3254\"\u003eQ5: What protection prevents incorrect module installation?\u003c\/strong\u003e\u003cbr data-start=\"3254\" data-end=\"3257\"\u003e✅ \u003cstrong data-start=\"3259\" data-end=\"3280\"\u003eMechanical keying\u003c\/strong\u003e ensures proper placement and prevents configuration errors.\u003c\/p\u003e","brand":"ABB","offers":[{"title":"Default Title","offer_id":43776612532323,"sku":"TU846","price":676.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0583\/5246\/8067\/files\/304.1_a83c20e6-efde-4e9a-b152-0d7e85a88857.jpg?v=1760407631","url":"https:\/\/www.autocontrolglobal.com\/hr\/products\/tu846-abb-passive-mtu-for-redundant-industrial-i-o","provider":"AutoControl Global","version":"1.0","type":"link"}