{"product_id":"allen-bradley-digital-input-module-plc-5-interface-1771-ia2","title":"Allen-Bradley Digital Input Module - PLC-5 Interface 1771-IA2","description":"\u003ch2\u003eAllen-Bradley 1771-IA2 Digital Input Module - Reliable AC\/DC Signal Interface\u003c\/h2\u003e\n\u003cp\u003eGet precise signal control with the \u003cstrong\u003e1771-IA2 module\u003c\/strong\u003e. This digital input module connects your PLC-5 system to various field devices. Perfect for industrial automation applications requiring reliable AC\/DC input handling.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eWorks with 120V AC\/DC signals\u003c\/li\u003e\n\u003cli\u003eEasy module replacement with wiring arm\u003c\/li\u003e\n\u003cli\u003e8 input points with status indicators\u003c\/li\u003e\n\u003cli\u003eFast response times for real-time control\u003c\/li\u003e\n\u003cli\u003eBuilt-in protection against electrical noise\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e Allen-Bradley\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModel:\u003c\/strong\u003e 1771-IA2 Series A\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModule Type:\u003c\/strong\u003e Digital Input\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVoltage Rating:\u003c\/strong\u003e 120V AC\/DC\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInput Points:\u003c\/strong\u003e 8 Points\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOperating Voltage Range:\u003c\/strong\u003e 87-138V AC \/ 97-138V DC\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBackplane Current:\u003c\/strong\u003e 75 mA\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePower Dissipation:\u003c\/strong\u003e 10.7 Watts\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSignal Delay AC:\u003c\/strong\u003e 24ms (±10ms)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSignal Delay DC:\u003c\/strong\u003e 10ms On \/ 20ms Off\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOff-State Current:\u003c\/strong\u003e 2.8 mA max\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIsolation:\u003c\/strong\u003e Optoelectrical\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDimensions:\u003c\/strong\u003e 3.5\" x 6.5\" x 2.0\"\u003c\/p\u003e\n\u003ch3\u003eInstallation Guide\u003c\/h3\u003e\n\u003cp\u003eFits in 1771 I\/O chassis\u003c\/p\u003e\n\u003cp\u003eUses 1771-WA wiring arm\u003c\/p\u003e\n\u003cp\u003e½, 1, or 2-slot addressing\u003c\/p\u003e\n\u003cp\u003eKeying bands between pins 10-12 and 4-6\u003c\/p\u003e\n\u003ch3\u003eCompatible Devices\u003c\/h3\u003e\n\u003cp\u003eAC\/DC proximity switches\u003c\/p\u003e\n\u003cp\u003ePushbuttons and limit switches\u003c\/p\u003e\n\u003cp\u003eMotor starters and pilot lights\u003c\/p\u003e\n\u003cp\u003ePLC-5 control systems\u003c\/p\u003e\n\u003ch3\u003ePackage Includes\u003c\/h3\u003e\n\u003cp\u003e1771-IA2 Input Module\u003c\/p\u003e\n\u003cp\u003e1771-WA Wiring Arm\u003c\/p\u003e\n\u003cp\u003eInstallation guide\u003c\/p\u003e\n\u003ch3\u003eWarranty \u0026amp; Shipping\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong style=\"color: #2e86ab;\"\u003e12 Months Warranty\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFast shipping with FedEx, UPS, DHL\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat devices can connect to the 1771-IA2 module?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe 1771-IA2 works with AC\/DC proximity switches, pushbuttons, limit switches, and motor starters for various control applications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow many input points does this module have?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis digital input module provides 8 input points for connecting multiple field devices simultaneously.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the operating voltage range for DC signals?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe 1771-IA2 operates with DC voltages from 97 to 138 volts DC for reliable performance.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the module include status indicators?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes, it features 8 orange status indicators for easy monitoring of each input point's status.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat protection features are included?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe module includes optoelectrical isolation and input filtering to protect against electrical transients and reduce noise.\u003c\/p\u003e\n\u003cp\u003e© 2025 Ubest Automation Limited. All rights reserved.\u003cbr\u003eOriginal Source: \u003ca href=\"https:\/\/www.ubestplc.com\/\"\u003ehttps:\/\/www.ubestplc.com\/\u003c\/a\u003e\u003cbr\u003eContact: \u003ca href=\"mailto:sales@ubestplc.com\"\u003esales@ubestplc.com\u003c\/a\u003e | \u003ca href=\"https:\/\/wa.me\/868618030005825\"\u003e+86 86 180 3000 5825\u003c\/a\u003e\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":51194955628826,"sku":null,"price":156.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0873\/6240\/4634\/files\/1771-IA2_2.jpg?v=1760058614","url":"https:\/\/www.ubestplc.com\/sk\/products\/allen-bradley-digital-input-module-plc-5-interface-1771-ia2","provider":"Ubest Automation Limited","version":"1.0","type":"link"}