{"product_id":"allen-bradley-1741-a120a-input-module","title":"Allen-Bradley 1741-A120A Input Module","description":"\u003cdiv\u003e\u003cp\u003eThe Allen-Bradley 1741-A120A Input Module is a four-channel 120 VAC digital input card designed for use in an AB 1741 I\/O rack. It accepts four independent 120 VAC input signals from field devices such as pushbuttons, limit switches, and other sensors, converting each to a boolean input for the controller. This module is part of the vintage SLC 500-era I\/O family and mounts in the same backplane as other 1741 family modules, sharing common wiring and electrical characteristics with the series. Each channel is rated for standard 110\/120 VAC operation, enabling straightforward integration with equipment powered from typical industrial mains. The 1741-A120A communicates with the PLC via the 1741 backplane, allowing the programmable controller to read on\/off states in real-time and respond to process conditions accordingly. It is commonly used in machine automation, packaging lines, conveyors, and other manufacturing processes where AC-powered switches and sensors provide discrete control signals. As a four-channel module, it offers a compact option when only a few discrete AC inputs are required, complementing AB's broader range of input and output modules for legacy control systems.\u003c\/p\u003e\u003c\/div\u003e","brand":"Allen-Bradley","offers":[{"title":"New","offer_id":51658994024750,"sku":null,"price":61.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_5629f83c-738c-4f8b-a9de-f00c23f233f1.jpg?v=1769526375","url":"https:\/\/plgautomation.com\/products\/allen-bradley-1741-a120a-input-module","provider":"PLG Automation ","version":"1.0","type":"link"}