{"product_id":"allen-bradley-1746-ia8-slc-500-digital-ac-input-module","title":"Allen-Bradley 1746-IA8 SLC 500 Digital AC Input Module","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp\u003eThe Allen-Bradley 1746-IA8 is a chassis-based digital AC input module designed for the SLC 500 modular control system. Engineered for industrial automation environments, this module interfaces standard 100 to 120VAC field signals with the processor backplane, converting alternating current sensor states into reliable internal data bits. It features 8 discrete input channels housed within a compact open-style modular enclosure suitable for standard rack mounting.\u003c\/p\u003e\n\u003cp\u003eThe 1746-IA8 provides reliable optical isolation between the high-voltage field side and the low-voltage backplane logic. It operates efficiently across standard industrial line frequencies, making it ideal for monitoring limit switches, pushbuttons, selector switches, and auxiliary relay contacts in discrete manufacturing and process control loops.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e8 discrete AC input channels operating at 100\/120VAC nominal voltage\u003c\/li\u003e\n  \u003cli\u003eOptical isolation between input points and the backplane logic\u003c\/li\u003e\n  \u003cli\u003eFront-panel status indicators providing visual feedback for individual input points\u003c\/li\u003e\n  \u003cli\u003eChassis-based modular design for seamless integration into SLC 500 backplanes\u003c\/li\u003e\n  \u003cli\u003eCompatible with optional external current-limiting resistors for specialized inrush mitigation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eMonitoring mechanical limit switches and proximity sensors in automated assembly lines\u003c\/li\u003e\n  \u003cli\u003eInterfacing operator control stations, pushbuttons, and selector switches\u003c\/li\u003e\n  \u003cli\u003eTracking status signals from motor starters, contactors, and control relays\u003c\/li\u003e\n  \u003cli\u003eGeneral-purpose digital AC signal acquisition within SLC 500 control racks\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\u003eProduct Family\u003c\/td\u003e\n      \u003ctd\u003eSLC 500\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eCatalog Number\u003c\/td\u003e\n      \u003ctd\u003e1746-IA8\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eModule Type\u003c\/td\u003e\n      \u003ctd\u003eDigital AC Input Module\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eNumber of Inputs\u003c\/td\u003e\n      \u003ctd\u003e8 points\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eNominal Voltage\u003c\/td\u003e\n      \u003ctd\u003e100\/120VAC (47 to 63Hz)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eOperating Voltage Range\u003c\/td\u003e\n      \u003ctd\u003e85 to 132VAC\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eNominal Input Current\u003c\/td\u003e\n      \u003ctd\u003e12mA @ 120VAC\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eBackplane Current Draw (5VDC)\u003c\/td\u003e\n      \u003ctd\u003e50mA\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eBackplane Current Draw (24VDC)\u003c\/td\u003e\n      \u003ctd\u003e0mA\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eSignal Delay (ON)\u003c\/td\u003e\n      \u003ctd\u003e35ms max\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eSignal Delay (OFF)\u003c\/td\u003e\n      \u003ctd\u003e45ms max\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eOff-State Voltage Max\u003c\/td\u003e\n      \u003ctd\u003e30VAC\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eOff-State Current Max\u003c\/td\u003e\n      \u003ctd\u003e2.0mA\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eEnclosure Type\u003c\/td\u003e\n      \u003ctd\u003eOpen style\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\u003eCSA Certified\u003c\/li\u003e\n  \u003cli\u003eCE Compliant for applicable directives\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":53770293510507,"sku":"1746-IA8","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/1746-IA8_1200x1200_9db30c6d-be60-41fa-8af5-546bc144c859.jpg?v=1787740491","url":"https:\/\/www.plcprotech.com\/products\/allen-bradley-1746-ia8-slc-500-digital-ac-input-module","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}