{"product_id":"abb-advant-s800-i-o-tu842-3bse020850r1-module-termination-unit","title":"ABB TU842 3BSE020850R1 Module Termination Unit","description":"\u003cp\u003eThe ABB TU842 (3BSE020850R1) is a redundant, horizontal Module Termination Unit (MTU) designed for the S800 I\/O system. It provides a robust interface for connecting field signals to I\/O modules while facilitating the distribution of the ModuleBus and process power.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eSupports up to 16 I\/O channels with 3-wire connection capability.\u003c\/li\u003e\n\u003cli\u003eRedundant configuration support for high-availability applications.\u003c\/li\u003e\n\u003cli\u003eIntegrated process power distribution (2+2 connections).\u003c\/li\u003e\n\u003cli\u003eMechanical keying system prevents the insertion of incorrect I\/O modules.\u003c\/li\u003e\n\u003cli\u003eLatching mechanism for secure DIN rail mounting and integrated grounding.\u003c\/li\u003e\n\u003cli\u003eDistributes ModuleBus signals to I\/O modules and subsequent MTUs.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eApplications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOil and Gas: Onshore processing plants and offshore drilling platforms.\u003c\/li\u003e\n\u003cli\u003eMarine Engineering: Engine room automation and dynamic positioning systems.\u003c\/li\u003e\n\u003cli\u003eMetallurgy and Mining: Blast furnace automation and converter control.\u003c\/li\u003e\n\u003cli\u003eWater Treatment: Sewage treatment plants and remote pumping stations.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eTU842 \/ 3BSE020850R1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChannels\u003c\/td\u003e\n\u003ctd\u003e16\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Voltage\u003c\/td\u003e\n\u003ctd\u003e50 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Current (per channel)\u003c\/td\u003e\n\u003ctd\u003e3 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Current (process connection)\u003c\/td\u003e\n\u003ctd\u003e10 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDielectric Test Voltage\u003c\/td\u003e\n\u003ctd\u003e500 V AC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e0 to +55 degC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temperature\u003c\/td\u003e\n\u003ctd\u003e-40 to +70 degC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting\u003c\/td\u003e\n\u003ctd\u003eHorizontal, DIN Rail\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eEnsure the DIN rail is properly grounded to provide a common reference for the MTU latching system.\u003c\/li\u003e\n\u003cli\u003eVerify that mechanical keys are correctly set for the specific I\/O module type to prevent improper installation.\u003c\/li\u003e\n\u003cli\u003ePower down the system before inserting or removing any I\/O modules from the MTU.\u003c\/li\u003e\n\u003cli\u003eMaintain adequate spacing for ventilation to ensure operating temperatures remain within the 0 to +55 degC range.\u003c\/li\u003e\n\u003cli\u003eRoute field wiring away from high-EMI sources to maintain signal integrity.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003ch3\u003eWhat is the TU842 (3BSE020850R1)?\u003c\/h3\u003e\u003cp\u003eIt is a redundant, horizontal Module Termination Unit (MTU) designed for the ABB S800 I\/O system, used for connecting field signals to I\/O modules and distributing the ModuleBus.\u003c\/p\u003e\u003ch3\u003eHow many I\/O channels does it support?\u003c\/h3\u003e\u003cp\u003eThe unit supports up to 16 I\/O channels, with each channel featuring two I\/O connections and one ZP connection.\u003c\/p\u003e\u003ch3\u003eHow is the MTU configured for specific I\/O modules?\u003c\/h3\u003e\u003cp\u003eThe MTU uses four mechanical keys (two for each I\/O module) with six positions each, allowing for 36 different mechanical configurations to prevent incorrect module insertion.\u003c\/p\u003e","brand":"ABB","offers":[{"title":"Default Title","offer_id":50994929762556,"sku":"TU842 3BSE020850R1","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/9983\/1292\/files\/wm_1_0b381043-bbd3-4c55-90b3-44a07f3c6bc7.jpg?v=1787070331","url":"https:\/\/www.electronicplc.com\/products\/abb-advant-s800-i-o-tu842-3bse020850r1-module-termination-unit","provider":"Electronic PLC","version":"1.0","type":"link"}