{"product_id":"wesdac-d20-s-820-0154-by-ge-digital-input-module-for-substations","title":"Wesdac D20 S 820-0154 by GE | Digital Input Module for Substations","description":"\u003ch1\u003e\u003cstrong\u003eProduct Description\u003c\/strong\u003e\u003c\/h1\u003e\n\u003ch2\u003e\u003cstrong\u003eOverview\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThe GE Wesdac D20 S Input Module 820-0154 is a high-density logic and status input panel designed for modern substation automation systems. It gathers digital signals from relays, switches, and sensors, then delivers accurate and time-stamped data to the D20 controller. Moreover, its modular architecture supports flexible integration and provides utilities with a reliable way to modernize long-running supervisory systems. Engineers value this module because it offers stable performance, wide environmental tolerance, and strong isolation between input groups.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eGeneral Information\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eManufacturer: GE (GE Vernova \/ GE Grid Solutions)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eModel Number: 820-0154 WESDAC D20 S\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSeries: D20 Substation Automation System\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eProduct Type: Digital Status Input Module\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eInput Capacity\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e64 digital inputs total\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eOrganized into 8 groups of 8 channels\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eEach group fully isolated with its own common return\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eInput Requirements\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eSupports 12 VDC and higher input levels\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDesigned for negative-ground field systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eTerminations\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eAll field terminations located on the bottom module\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCompression-type terminals ensure secure connections\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCommunication\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eCommunicates processed data to D20 main processor\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSupports Modbus TCP\/IP and other SCADA protocols\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eEnvironmental Ratings\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eOperating temperature: –40 °C to +70 °C\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSuitable for harsh substation and industrial sites\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003ePhysical Characteristics\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eDimensions: 100 × 80 × 20 mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWeight: 0.55 kg\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMounting: Panel or rack installation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cstrong\u003eFAQ\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eQ1: What systems does the D20 S 820-0154 module support?\u003c\/strong\u003e\u003cbr\u003eIt integrates directly with GE D20 controllers used in substation automation and SCADA systems.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ2: How many inputs does the module handle?\u003c\/strong\u003e\u003cbr\u003eIt supports up to 64 digital inputs arranged in eight isolated groups.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ3: Can it operate in extreme environmental conditions?\u003c\/strong\u003e\u003cbr\u003eYes. It functions reliably from –40 °C to +70 °C, covering typical utility requirements.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ4: What type of grounding does it support?\u003c\/strong\u003e\u003cbr\u003eIt is designed for negative-ground systems commonly found in substations.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ5: Does the module support industry-standard protocols?\u003c\/strong\u003e\u003cbr\u003eYes. It communicates with the D20 processor using Modbus TCP\/IP and related industrial protocols.\u003c\/p\u003e","brand":"GE Fanuc","offers":[{"title":"Default Title","offer_id":43872370163811,"sku":"820-0154 WESDAC D20 S","price":120.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0583\/5246\/8067\/files\/376._1e885617-86f3-4fd8-8c8d-be4813f617ee.jpg?v=1764898023","url":"https:\/\/www.autocontrolglobal.com\/sk\/products\/wesdac-d20-s-820-0154-by-ge-digital-input-module-for-substations","provider":"AutoControl Global","version":"1.0","type":"link"}