{"product_id":"allen-bradley-1794-im8-flex-i-o-ac-input-module","title":"Allen-Bradley 1794-IM8 FLEX I\/O AC Input Module","description":"\u003ch3\u003e\u003cstrong\u003eProduct Description\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eAllen-Bradley 1794-IM8\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis an AC digital input module from the FLEX I\/O distributed I\/O platform, engineered for high-voltage signal monitoring in industrial automation systems. This module accepts eight non-isolated AC input channels and is optimized for 240V AC signal detection in machine control and process applications.\u003c\/p\u003e\n\u003cp\u003eDesigned for compact FLEX I\/O architectures, the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1794-IM8\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eoffers reliable input processing with low backplane current consumption and integrated channel status indication. The module interfaces directly with field AC devices such as switches, pushbuttons, sensors, auxiliary contacts, and pilot devices operating within standard industrial voltage ranges.\u003c\/p\u003e\n\u003cp\u003eIts modular construction allows flexible installation with compatible terminal base units including 1794-TBN and 1794-TBNK.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\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\u003eModel\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e1794-IM8\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Series\u003c\/td\u003e\n\u003ctd\u003eFLEX I\/O 1794\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eAC Digital Input Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Channels\u003c\/td\u003e\n\u003ctd\u003e8 Non-Isolated Inputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Input Voltage\u003c\/td\u003e\n\u003ctd\u003e240V AC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Frequency Range\u003c\/td\u003e\n\u003ctd\u003e47–63 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eON-State Voltage\u003c\/td\u003e\n\u003ctd\u003e240V AC nominal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOFF-State Voltage\u003c\/td\u003e\n\u003ctd\u003e40V AC maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eON-State Current\u003c\/td\u003e\n\u003ctd\u003e13.21 mA maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOFF-State Current\u003c\/td\u003e\n\u003ctd\u003e2.6 mA maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Input Current\u003c\/td\u003e\n\u003ctd\u003e12 mA at 240V AC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Impedance\u003c\/td\u003e\n\u003ctd\u003e22.3 kΩ nominal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation Voltage\u003c\/td\u003e\n\u003ctd\u003e250V Continuous\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFLEXBUS Current\u003c\/td\u003e\n\u003ctd\u003e30 mA at 5V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThermal Dissipation\u003c\/td\u003e\n\u003ctd\u003e16.2 BTU\/hr at 264V AC maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStatus Indicators\u003c\/td\u003e\n\u003ctd\u003e8 Yellow Channel LEDs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Terminal Bases\u003c\/td\u003e\n\u003ctd\u003e1794-TBN, 1794-TBNK\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWiring Category\u003c\/td\u003e\n\u003ctd\u003eCategory 2 Signal Ports\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e6.9 × 9.4 × 9.4 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.06 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cstrong\u003eModule Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eEight high-voltage AC digital input channels\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCompact FLEX I\/O distributed architecture\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIntegrated LED diagnostics for each input point\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eLow current consumption on FLEXBUS backplane\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDesigned for 240V AC industrial sensing circuits\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDIN rail mounting with removable terminal base compatibility\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSuitable for decentralized and remote I\/O systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eTypical Industrial Applications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1794-IM8\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003emodule is commonly installed in:\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003ePLC-based machine automation systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDistributed I\/O control panels\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eManufacturing process monitoring\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eConveyor and packaging equipment\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMotor starter status feedback circuits\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFacility and utility automation systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHigh-voltage AC signal interfacing applications\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eFAQ\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ch4\u003e\u003cstrong\u003eIs the 1794-IM8 an isolated input module?\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eNo. The module uses non-isolated input channels designed for common AC input applications.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eWhich terminal bases are compatible with the 1794-IM8?\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eRecommended terminal bases include the 1794-TBN and 1794-TBNK FLEX I\/O terminal units.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eWhat input voltage range is supported?\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eThe module is designed primarily for nominal 240V AC input signals operating between 47 and 63 Hz.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eDoes the module provide diagnostic indication?\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eYes. Eight front-panel yellow LEDs indicate the status of each input channel.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":43333247303770,"sku":"1794-IM8","price":123.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/4601\/3530\/files\/1794-IM82.jpg?v=1778211444","url":"https:\/\/www.plcmasters.com\/products\/allen-bradley-1794-im8-flex-i-o-ac-input-module","provider":"PLC Masters Ltd.","version":"1.0","type":"link"}