{"product_id":"allen-bradley-1794-tb3-flex-i-o-terminal-base-unit","title":"Allen-Bradley 1794-TB3 FLEX I\/O Terminal Base Unit","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp\u003eThe Allen-Bradley 1794-TB3 is a FLEX I\/O terminal base unit designed to provide secure termination points for field devices, sensors, and power supplies within a distributed modular I\/O architecture. Functioning as the structural and electrical mounting foundation, this base unit mounts directly onto a standard DIN rail and physically hosts compatible Allen-Bradley FLEX I\/O modules, bridging field-level wiring directly to the inter-module backplane communication and power bus.\u003c\/p\u003e\n\u003cp\u003eEngineered to streamline cabinet wiring and maintenance, the 1794-TB3 features structured terminal rows that separate input and output signal lines from voltage common and supply connections. Its modular design allows individual I\/O modules to be removed or replaced while maintaining field-side wiring integrity, significantly reducing Mean Time to Repair (MTTR) in continuous industrial automation environments.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eScrew clamp termination style for secure, vibration-resistant wire retention\u003c\/li\u003e\n  \u003cli\u003eSupports maximum conductor sizes up to 12 AWG (4 mm2) and minimum down to 22 AWG (0.35 mm2)\u003c\/li\u003e\n  \u003cli\u003eIntegrated daisy-chain capability for efficient power distribution across adjacent terminal bases\u003c\/li\u003e\n  \u003cli\u003eDedicated terminal rows separating 16 I\/O connections, voltage common connections, and voltage supply connections\u003c\/li\u003e\n  \u003cli\u003eDIN rail mounting architecture for robust mechanical installation in standard control enclosures\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eTermination and signal routing for distributed FLEX I\/O discrete and analog modules\u003c\/li\u003e\n  \u003cli\u003eIndustrial machinery and process control cabinet wiring consolidation\u003c\/li\u003e\n  \u003cli\u003eRemote rack signal interfacing in complex manufacturing cells\u003c\/li\u003e\n  \u003cli\u003eModular automation systems requiring hot-insertion and removal (RIUP) capabilities\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003eParameter\u003c\/th\u003e\n      \u003cth\u003eSpecification\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eBrand\u003c\/td\u003e\n      \u003ctd\u003eAllen-Bradley\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eCatalog Number\u003c\/td\u003e\n      \u003ctd\u003e1794-TB3\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eProduct Type\u003c\/td\u003e\n      \u003ctd\u003eFLEX I\/O Terminal Base Unit\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eTerminal Type\u003c\/td\u003e\n      \u003ctd\u003eScrew Clamp\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eMaximum Voltage Rating\u003c\/td\u003e\n      \u003ctd\u003e132 VAC \/ 125 VDC\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eCurrent Rating (Max)\u003c\/td\u003e\n      \u003ctd\u003e10 A\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eIsolation Voltage\u003c\/td\u003e\n      \u003ctd\u003e125V continuous (Basic insulation type)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eConductor Wire Size\u003c\/td\u003e\n      \u003ctd\u003e22 to 12 AWG (0.35 to 4.0 mm2) solid or stranded\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eMounting Type\u003c\/td\u003e\n      \u003ctd\u003eDIN Rail (EN 50022 - 35 x 7.5 or 35 x 15 mm)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eEnclosure Type Rating\u003c\/td\u003e\n      \u003ctd\u003eNone (Open-style module)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eCountry of Origin\u003c\/td\u003e\n      \u003ctd\u003eUnited States\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompliance and Certifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eUL Listed Industrial Control Equipment\u003c\/li\u003e\n  \u003cli\u003eCE Compliant for applicable directives\u003c\/li\u003e\n  \u003cli\u003ec-UL-us Listed\u003c\/li\u003e\n  \u003cli\u003eCSA Certified\u003c\/li\u003e\n  \u003cli\u003eODVA compliant for DeviceNet \/ ControlNet \/ EtherNet\/IP distributed architectures\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":53770298032491,"sku":"1794-TB3","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/1794-TB3_1200x1200_b84f1447-5145-4780-a606-e557a9e33764.jpg?v=1787740565","url":"https:\/\/www.plcprotech.com\/products\/allen-bradley-1794-tb3-flex-i-o-terminal-base-unit","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}