{"product_id":"allen-bradley-1794-im16-flex-i-o-16-point-240v-ac-digital-input-module","title":"Allen-Bradley 1794-IM16 Flex I\/O 16-Point 240V AC Digital Input Module","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1794-IM16\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eprovides a high-density, 16-point discrete interface for Allen-Bradley Flex I\/O systems, specifically designed to handle 240V AC input signals. This module functions as a critical bridge between high-voltage field devices—such as limit switches, motor starter auxiliary contacts, and pilot lights—and the programmable controller. We supply this module as\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e100% Brand New\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eoriginal equipment, ensuring long-term dielectric stability and signal precision for your distributed I\/O network.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003ctd\u003e\u003cstrong\u003eFeature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1794-IM16\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eModule Type\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eDiscrete AC Input\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eNumber of Inputs\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e16 Points (Current Sinking)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eVoltage Category\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e240V AC\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eOperating Voltage Range\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e159–264V AC\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eFrequency Range\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e47–63 Hz\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eFlexBus Current\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e30 mA @ 5V DC\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eMounting\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eDIN Rail (via Terminal Base)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eEnclosure Type\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eOpen Style\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0.06 kg (0.13 lbs)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eEngineering Advantages\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHigh-Voltage Interface Integration:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe 1794-IM16 eliminates the need for interposing relays when monitoring 240V AC circuits. It accepts high-voltage field signals directly, reducing cabinet wiring complexity and lowering total hardware costs.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eModular Space Efficiency:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eAs part of the Flex I\/O family, this module utilizes a small footprint. It enables engineers to deploy 16 points of high-voltage sensing in tight enclosures where traditional rack-based I\/O would not fit.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eRapid Installation and Maintenance:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe module snaps onto a variety of 1794 terminal bases (such as the 1794-TB3 or 1794-TB3S). This \"Removal and Insertion Under Power\" (RIUP) capability allows maintenance teams to swap modules without disrupting the FlexBus power or existing field wiring.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eEnhanced Noise Immunity:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eInternal hardware filters manage the AC signal to prevent false triggers caused by electromagnetic interference (EMI) or contact bounce. This ensures the controller receives a stable logic state even in electrically noisy industrial environments.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFAQs\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat terminal base should I use with the 1794-IM16?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe 1794-IM16 requires a compatible terminal base for field wiring. We recommend the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1794-TB3\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eor\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1794-TB3S\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(spring clamp) to handle the 16-point density and 240V AC insulation requirements. Always verify the voltage rating of the terminal base before applying power.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan the 1794-IM16 handle 120V AC signals?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo. The 1794-IM16 has an \"On-State\" voltage threshold starting at 159V AC. Applying 120V AC will not reliably trigger the input, leading to missed signals. For 120V AC applications, utilize the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1794-IA16\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003emodule instead.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this module require external power for the inputs?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe module draws its logic power (30 mA) from the FlexBus via the adapter. However, the field-side signals require an external 240V AC source to complete the circuit for the 16 input points.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs it possible to mix different phases across the 16 input points?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWhile the module supports 16 points, they typically share common return paths depending on the terminal base used. Consult the specific wiring diagram for your 1794-TB base to ensure proper isolation and prevent phase-to-phase shorts.\u003c\/p\u003e","brand":"Allen Bradley","offers":[{"title":"Default Title","offer_id":53410965881016,"sku":"1794-IM16","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0935\/6132\/3704\/files\/1794-IM16.jpg?v=1777279808","url":"https:\/\/www.globalpetroparts.com\/products\/allen-bradley-1794-im16-flex-i-o-16-point-240v-ac-digital-input-module","provider":"Global Petro Parts Automation","version":"1.0","type":"link"}