{"product_id":"allen-bradley-1756-im16i-16-channel-isolated-ac-input","title":"Allen-Bradley 1756-IM16I 16 Channel Isolated AC Input","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong style=\"color: #0056b3;\"\u003eAllen-Bradley 1756-IM16I\u003c\/strong\u003e is a premium, heavy-duty 16-point isolated AC digital input module belonging to the high-performance ControlLogix automation platform. Engineered for challenging industrial environments with diverse electrical grids, this module provides complete point-to-point isolation across all 16 channels, operating within a nominal voltage category of 240 Volts AC (159 to 265 VAC range). Weighing approximately 0.30 kg (0.66 lbs), this chassis-based processor card monitors high-voltage field statuses, executes precise Change-of-State (COS) tracking, and protects the core PLC backplane from dangerous multi-phase cross-faults or erratic voltage spikes.\u003c\/p\u003e\n\n\u003ch2\u003eCore Technical Advantages\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePer-Point Individual Isolation:\u003c\/strong\u003e Features 16 completely independent isolated channel grids, permitting the simultaneous monitoring of distinct AC phases or separate field power sources on a single module without phase short-circuit risks.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eProgrammable Logic Filter Times:\u003c\/strong\u003e Supports highly customizable input delay filters (selectable up to 18 ms) combined with rapid hardware response times to successfully suppress contact bounce and high-frequency line noise.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAdvanced Thermal Derating Matrix:\u003c\/strong\u003e Optimized to safely dissipate up to 5.8 Watts at 60 degrees Celsius, providing robust multi-channel configuration charts to handle continuous high-temperature field operations with maximum stability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin: 15px 0;\"\u003e\n  \u003cthead\u003e\n    \u003ctr style=\"background-color: #f2f2f2;\"\u003e\n      \u003cth style=\"border: 1px solid #dddddd; text-align: left; padding: 8px;\"\u003eParameter\u003c\/th\u003e\n      \u003cth style=\"border: 1px solid #dddddd; text-align: left; padding: 8px;\"\u003eSpecification Details\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #dddddd; padding: 8px; font-weight: bold;\"\u003eBrand \/ Manufacturer\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #dddddd; padding: 8px;\"\u003eAllen-Bradley \/ Rockwell Automation (ControlLogix System)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #dddddd; padding: 8px; font-weight: bold;\"\u003eModel Part Number\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #dddddd; padding: 8px;\"\u003e1756-IM16I (UPC 10612598171344)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #dddddd; padding: 8px; font-weight: bold;\"\u003eGross Weight\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #dddddd; padding: 8px;\"\u003e0.30 kg (0.66 lbs)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #dddddd; padding: 8px; font-weight: bold;\"\u003eModule Category\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #dddddd; padding: 8px;\"\u003eIsolated Digital AC Input Module\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #dddddd; padding: 8px; font-weight: bold;\"\u003eDiscrete Input Count\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #dddddd; padding: 8px;\"\u003e16 Individually Isolated Inputs (Point-to-Point Isolation)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #dddddd; padding: 8px; font-weight: bold;\"\u003eNominal Voltage Category\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #dddddd; padding: 8px;\"\u003e240 Volts AC (50 \/ 60 Hz operating frequency)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #dddddd; padding: 8px; font-weight: bold;\"\u003eContinuous Operating Range\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #dddddd; padding: 8px;\"\u003e159 to 265 Volts AC (47 to 63 Hz frequency bandwidth)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #dddddd; padding: 8px; font-weight: bold;\"\u003eOn-State Current Threshold\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #dddddd; padding: 8px;\"\u003e5 mA minimum at 159 VAC \/ 13 mA maximum at 265 VAC\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #dddddd; padding: 8px; font-weight: bold;\"\u003eOff-State Threshold Limits\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #dddddd; padding: 8px;\"\u003eMaximum 40 Volts AC \/ Maximum 2.5 mA leakage current\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #dddddd; padding: 8px; font-weight: bold;\"\u003eMaximum Inrush Current\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #dddddd; padding: 8px;\"\u003e250 mA peak inrush loading capability\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #dddddd; padding: 8px; font-weight: bold;\"\u003eBackplane Current Requirements\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #dddddd; padding: 8px;\"\u003e100 mA at 5 VDC \/ 3 mA at 24 VDC (Total Bus Power: 0.58 Watts)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #dddddd; padding: 8px; font-weight: bold;\"\u003eThermal \/ Power Dissipation\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #dddddd; padding: 8px;\"\u003e5.8 Watts maximum power loss \/ 19.78 BTU\/hour thermal dissipation\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #dddddd; padding: 8px; font-weight: bold;\"\u003eCompatible Terminal Housing\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #dddddd; padding: 8px;\"\u003e36-Pin Removable Terminal Blocks (1756-TBCH or 1756-TBS6H)\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eInstallation \u0026amp; Engineering Guide\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChassis Placement \u0026amp; Insertion:\u003c\/strong\u003e Ensure the primary system power supply is completely isolated before beginning installation. Align the 0.30 kg hardware frame within the selected slot guides of the 1756 ControlLogix chassis, pushing it backward firmly until the top and bottom retention clips snap completely over the structural chassis rail tabs.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e36-Pin RTB Wiring Configurations:\u003c\/strong\u003e Terminate your 240V AC field inputs through an approved 1756-TBCH (extended clamp) or 1756-TBS6H (spring clamp) 36-pin removable terminal block. Because each channel is fully isolated, always run both the active signal line and its respective neutral return line directly to the designated channel terminal pair.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOperating Environment Derating:\u003c\/strong\u003e Monitor your local enclosure temperature guidelines closely. When executing full system density, all 16 channels can remain ON up to 30 degrees Celsius at 265 VAC; however, if operating at 40 degrees Celsius, limit simultaneous active channels to 8 points max, or derate the operational input limit down to 242 VAC at 60 degrees Celsius with all channels active.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eTechnical FAQs\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eQ1: How is the total execution delay calculated for the 1756-IM16I AC input paths?\u003c\/strong\u003e\u003cbr\u003e\nA1: The total turnaround delay from screw to backplane is a combination of native hardware circuit latency and user-selected filter times. Going from Off-to-On, it equals the 10 ms max hardware delay plus a selectable 1 or 2 ms filter. Going from On-to-Off, it is an 8 ms max hardware delay plus a selectable 9 or 18 ms filter block.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ2: What is the main advantage of point-to-point isolation on this specific digital input card?\u003c\/strong\u003e\u003cbr\u003e\nA2: Unlike standard grouped inputs that share a common return bus, per-point isolation provides a completely separate circuit for each of the 16 paths. This allows you to mix different AC voltage phases or feed signals from entirely separate safety substations into a single physical card without risk of catastrophic cross-phase failure.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ3: Does the lightweight 0.30 kg construction of this module compromise its long-term reliability?\u003c\/strong\u003e\u003cbr\u003e\nA3: No. At roughly 0.30 kg, its specialized compact frame is optimized to save chassis balance while providing rugged structural components that comply with high-voltage industrial insulation profiles, fully meeting standard ControlLogix ratings for mechanical shock and vibrations.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":51050297688196,"sku":"1756-IM16I","price":176.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/7454\/7844\/files\/1756-IM16I.jpg?v=1782830128","url":"https:\/\/www.etowonauto.com\/kk\/products\/allen-bradley-1756-im16i-16-channel-isolated-ac-input","provider":"Etowon Auto","version":"1.0","type":"link"}