{"product_id":"caterpillar-478-8977-rotary-dial-6-button-keypad-module-for-heavy-equipment-operator-controls","title":"Caterpillar 478-8977 Rotary Dial 6-Button Keypad Module for Heavy Equipment Operator Controls","description":"\u003ch4 class=\"PDq2pG_selectionAnchorContainer\"\u003eDescription\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h4\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cmeta charset=\"utf-8\"\u003eThe Caterpillar 478-8977 is a rotary dial keypad module designed as an operator communication interface for compatible Cat heavy equipment. It combines six backlit function buttons, LED indicators, and a rotary selector to provide access to designated machine applications and operating functions from the cab control station.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003ctable style=\"width: 100%; height: 431.063px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 28.4423%; height: 19.5938px;\"\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.8038%; height: 19.5938px;\"\u003eNew\/Never Used Surplus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 28.4423%; height: 19.5938px;\"\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.8038%; height: 19.5938px;\"\u003eCaterpillar\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 28.4423%; height: 19.5938px;\"\u003e\u003cstrong\u003eCategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.8038%; height: 19.5938px;\"\u003eOperator Controls\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 28.4423%; height: 19.5938px;\"\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.8038%; height: 19.5938px;\"\u003e478-8977\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 28.4423%; height: 19.5938px;\"\u003e\u003cstrong\u003eSubcategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.8038%; height: 19.5938px;\"\u003eKeypad Modules\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 28.4423%; height: 19.5938px;\"\u003e\u003cstrong\u003eProduct Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.8038%; height: 19.5938px;\"\u003eRotary Dial Keypad Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 28.4423%; height: 19.5938px;\"\u003e\u003cstrong\u003eAlternate Part Numbers\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.8038%; height: 19.5938px;\"\u003e4788977, CA4788977\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 28.4423%; height: 19.5938px;\"\u003e\u003cstrong\u003eControl Layout\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.8038%; height: 19.5938px;\"\u003e6 Buttons with Rotary Dial\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 28.4423%; height: 19.5938px;\"\u003e\u003cstrong\u003eIndicators\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.8038%; height: 19.5938px;\"\u003eLED Indicators\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 28.4423%; height: 19.5938px;\"\u003e\u003cstrong\u003eButton Illumination\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.8038%; height: 19.5938px;\"\u003eBacklit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 28.4423%; height: 19.5938px;\"\u003e\u003cstrong\u003eLabeling\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.8038%; height: 19.5938px;\"\u003ePictorial\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 28.4423%; height: 19.5938px;\"\u003e\u003cstrong\u003eVoltage Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.8038%; height: 19.5938px;\"\u003e7.6–32 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 28.4423%; height: 19.5938px;\"\u003e\u003cstrong\u003eElectrical Connection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.8038%; height: 19.5938px;\"\u003e4-Pin\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 28.4423%; height: 19.5938px;\"\u003e\u003cstrong\u003eMounting Hardware\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.8038%; height: 19.5938px;\"\u003eM6 Screws\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 28.4423%; height: 19.5938px;\"\u003e\u003cstrong\u003eInstallation Location\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.8038%; height: 19.5938px;\"\u003eOperator Control Station\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 28.4423%; height: 19.5938px;\"\u003e\u003cstrong\u003eCompliance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.8038%; height: 19.5938px;\"\u003eRoHS Compliant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.1875px;\"\u003e\n\u003ctd style=\"width: 28.4423%; height: 39.1875px;\"\u003e\u003cstrong\u003eCompatible Equipment Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.8038%; height: 39.1875px;\"\u003eExcavators and Heavy Equipment\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.1875px;\"\u003e\n\u003ctd style=\"width: 28.4423%; height: 39.1875px;\"\u003e\u003cstrong\u003eCompatible Models\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.8038%; height: 39.1875px;\"\u003e320, 320 GC, 323, 325, 326, 330, 330 GC, 336, 336 GC, 340, 345 GC, 349, 352\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 28.4423%; height: 19.5938px;\"\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.8038%; height: 19.5938px;\"\u003eApproximately 1.10 lb (0.50 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003e\u003cbr\u003e\u003c\/h4\u003e\n\u003ch4\u003e\u003c\/h4\u003e\n\u003ch4\u003eInformation About\u003cspan\u003e \u003cmeta charset=\"utf-8\"\u003e478-8977\u003c\/span\u003e\n\u003c\/h4\u003e\n\u003cp class=\"PDq2pG_selectionAnchorContainer\"\u003e\u003cmeta charset=\"utf-8\"\u003eThe 478-8977 is a Caterpillar keypad module used within operator control stations on compatible excavators and other heavy equipment. Its compact housing incorporates six pictorially labeled membrane buttons, a central rotary dial, LED indicators, and backlighting for function identification. The module operates across a 7.6–32 V input range and connects to the machine electrical system through a 4-pin interface. It is associated with multiple Caterpillar equipment applications, including 320, 323, 326, 330, 336, 340, 349, and 352 series excavators.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eSix-Button Keypad: Provides six dedicated membrane-style buttons for selecting assigned machine functions.\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003eRotary Dial Control: Integrated rotary selector supports menu navigation and adjustment of designated operating settings.\u003c\/li\u003e\n\u003cli\u003eBacklit Interface: Backlit buttons improve identification of controls in varying cab lighting conditions.\u003c\/li\u003e\n\u003cli\u003eLED Indicators: Integrated LEDs provide visual status and function feedback to the equipment operator.\u003c\/li\u003e\n\u003cli\u003eWide Voltage Range: Operates from 7.6 to 32 V for compatibility with applicable heavy-equipment electrical systems.\u003c\/li\u003e\n\u003cli\u003e4-Pin Connection: Uses a four-pin electrical interface for connection to the machine control system.\u003c\/li\u003e\n\u003cli\u003eM6 Mounting: Designed for installation in the operator control station using M6 mounting screws.\u003c\/li\u003e\n\u003cli\u003eRoHS Compliance: Manufactured to meet applicable RoHS requirements for restricted materials.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe 478-8977 delivers the reliability and precision required for operator input, function selection, and control navigation in compatible Caterpillar equipment.\u003c\/p\u003e","brand":"Caterpillar","offers":[{"title":"Default Title","offer_id":52278969434410,"sku":"478-8977","price":767.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/0392\/4266\/files\/s-l1600_da6a54b7-8b17-4509-b836-4303897b3035.webp?v=1787078785","url":"https:\/\/iqelectro.com\/products\/caterpillar-478-8977-rotary-dial-6-button-keypad-module-for-heavy-equipment-operator-controls","provider":"IQElectro","version":"1.0","type":"link"}