{"product_id":"abb-tu846-3bse022460r1-s800-i-o-redundant-mtu","title":"ABB TU846 3BSE022460R1 S800 I\/O Redundant MTU","description":"\u003ch2\u003eABB TU846 S800 I\/O Module Termination Unit\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eABB TU846\u003c\/strong\u003e (part number \u003cstrong\u003e3BSE022460R1\u003c\/strong\u003e) is a passive module termination unit (MTU) designed for S800 I\/O systems. It provides physical mounting and electrical interconnections for redundant CI840 or CI840A Fieldbus Communication Interfaces (FCI), linking 24 V DC power supplies and dual electrical ModuleBus lines across industrial control enclosures.\u003c\/p\u003e\n\u003ch3\u003eSystem Interfacing and Network Address Setup\u003c\/h3\u003e\n\u003cp\u003eThe termination unit integrates dual rotary switches that allow direct hardware configuration of station addresses ranging from 0 to 99. In addition to dual electrical ModuleBus interconnections, the unit supports extension to optical ModuleBus networks when paired with TB842 and TB846 optical modules, enabling communication via PROFIBUS, HART, Modbus, and analog I\/O protocols.\u003c\/p\u003e\n\u003ch3\u003eKeying Mechanisms and Enclosure Specifications\u003c\/h3\u003e\n\u003cp\u003eTo protect against misconfiguration and hardware damage during maintenance, the TU846 incorporates a mechanical keying arrangement featuring 4 keys (2 keys per CI840 position) with 6 distinct keying positions. Measuring 124 mm x 186 mm x 47 mm and weighing 0.5 kg, the compact unit operates within a temperature range of -20 to +60 deg C.\u003c\/p\u003e\n\u003ch3\u003eTechnical Parameters\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\u003eModel\u003c\/td\u003e\n\u003ctd\u003eTU846\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eABB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e3BSE022460R1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eModule Termination Unit (MTU)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem Compatibility\u003c\/td\u003e\n\u003ctd\u003eABB S800 I\/O, CI840, CI840A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Supply Input\u003c\/td\u003e\n\u003ctd\u003e24 V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModuleBus Support\u003c\/td\u003e\n\u003ctd\u003eDual electrical ModuleBus (optional optical via TB842\/TB846)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtocol Support\u003c\/td\u003e\n\u003ctd\u003ePROFIBUS, HART, Modbus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAddress Configuration\u003c\/td\u003e\n\u003ctd\u003eDual rotary switches (0 to 99)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMechanical Keying\u003c\/td\u003e\n\u003ctd\u003e4 keys (2 per CI840 position), 6 positions each\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions (W x H x D)\u003c\/td\u003e\n\u003ctd\u003e124 mm x 186 mm x 47 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.5 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e-20 to +60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: How is the node address set on the ABB TU846 termination unit? A: Address settings are configured manually using the onboard dual rotary switches, supporting address values from 0 to 99 for CI840\/CI840A modules.\u003c\/p\u003e\n\u003cp\u003eQ: What prevents incorrect module insertion on the TU846? A: Mechanical keying with 4 keys and 6 position settings prevents accidental insertion of incompatible modules.\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\/763._9168f20c-8005-46ea-90e6-89a4277a407d.jpg?v=1793172108","url":"https:\/\/www.autocontrolglobal.com\/products\/abb-tu846-3bse022460r1-s800-i-o-redundant-mtu","provider":"AutoControl Global","version":"1.0","type":"link"}