{"product_id":"abb-advant-s800-i-o-tu890-3bsc690075r1-compact-terminal-block","title":"ABB TU890 3BSC690075R1 Compact Module Termination Unit (MTU)","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\u003cp\u003eThe ABB TU890 (3BSC690075R1) is a compact Module Termination Unit (MTU) specifically designed for the S800 I\/O system. This passive unit serves as the primary interface for connecting field wiring and process power to I\/O modules. It also facilitates the distribution of the ModuleBus to the I\/O module and subsequent MTUs, while managing correct addressing through the shifting of outgoing position signals.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eCompact footprint designed for space-efficient S800 I\/O installations.\u003c\/li\u003e\n\u003cli\u003eIntegrated ModuleBus distribution for seamless communication between modules.\u003c\/li\u003e\n\u003cli\u003eMechanical keying mechanism to prevent the insertion of incorrect I\/O modules.\u003c\/li\u003e\n\u003cli\u003eSecure latching device for stable DIN rail mounting.\u003c\/li\u003e\n\u003cli\u003eSupports field signal and process power connections via 27 terminals.\u003c\/li\u003e\n\u003cli\u003eCompatible with a wide range of S800 I\/O modules, including AI890, AI893, AI895, AO890, AO895, DI890, and DO890.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eApplications\u003c\/h3\u003e\u003cp\u003eThe TU890 is widely utilized in industrial environments requiring high-density, reliable I\/O termination, particularly in sectors such as:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOil and Gas:\u003c\/strong\u003e Offshore platforms, wellhead collection stations, and storage facilities.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChemical Processing:\u003c\/strong\u003e Hydrogenation units, flammable solvent storage, and chemical delivery pump stations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLogistics and Safety:\u003c\/strong\u003e Power and safety interlock monitoring for hazardous liquid chemicals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoal Chemical Industry:\u003c\/strong\u003e Gasification islands and coking workshops.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003ctable border=\"1\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eTU890\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrder Code\u003c\/td\u003e\n\u003ctd\u003e3BSC690075R1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eABB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eCompact MTU\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Rated Voltage\u003c\/td\u003e\n\u003ctd\u003e50 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Voltage\u003c\/td\u003e\n\u003ctd\u003e24 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Current per Channel\u003c\/td\u003e\n\u003ctd\u003e2 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProcess Connections\u003c\/td\u003e\n\u003ctd\u003e27 Terminals\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting\u003c\/td\u003e\n\u003ctd\u003eDIN Rail (Horizontal)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCountry of Origin\u003c\/td\u003e\n\u003ctd\u003eSweden\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e Ensure the unit is securely latched onto a standard DIN rail. The design supports horizontal mounting configurations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafety:\u003c\/strong\u003e Always power down the system before inserting or removing I\/O modules from the MTU to prevent electrical arcing or damage to the ModuleBus.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHandling:\u003c\/strong\u003e Use proper ESD (Electrostatic Discharge) precautions when handling the MTU to protect internal components.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWiring:\u003c\/strong\u003e Ensure all field wiring is properly terminated to the designated terminals. Verify that the mechanical keying matches the intended I\/O module before installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnvironment:\u003c\/strong\u003e Maintain the installation within the specified ambient temperature limits (up to 55 degC) to ensure long-term operational reliability.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFAQs\u003c\/h3\u003e\u003ch3\u003eWhat is the ABB TU890?\u003c\/h3\u003e\u003cp\u003eThe TU890 is a compact Module Termination Unit (MTU) designed for the ABB S800 I\/O system, used to connect field wiring and power supply to I\/O modules.\u003c\/p\u003e\u003ch3\u003eWhat type of terminal connection does it use?\u003c\/h3\u003e\u003cp\u003eIt features 27 terminals for process connections (field signals) and acts as a critical component in compact S800 I\/O system architectures.\u003c\/p\u003e\u003ch3\u003eWhat is the voltage rating?\u003c\/h3\u003e\u003cp\u003eThe nominal voltage is 24 V DC, with a maximum rated voltage of 50 V.\u003c\/p\u003e","brand":"ABB","offers":[{"title":"Default Title","offer_id":50912165626108,"sku":"TU890 3BSC690075R1","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/9983\/1292\/files\/wm_1_dbf44fca-dd9a-448a-9251-d05a50545b3f.jpg?v=1785730994","url":"https:\/\/www.electronicplc.com\/es\/products\/abb-advant-s800-i-o-tu890-3bsc690075r1-compact-terminal-block","provider":"Electronic PLC","version":"1.0","type":"link"}