{"product_id":"abb-ref542plus-base-unit-digital-bay-control-technology","title":"ABB REF542plus (Base Unit) Digital Bay Control Technology","description":"\u003ch3\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eREF542plus\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a high-performance, multipurpose feeder terminal and digital bay control module engineered for medium-voltage power distribution systems. Designed by ABB, the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eREF542plus\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eserves as a comprehensive protection, control, and monitoring hub, integrating high-speed microprocessor technology with flexible logic programming. It is optimized for a diverse range of applications, including feeder, transformer, and motor protection. By utilizing the Function Plan (FUPLA) programming environment, the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eREF542plus\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eallows for precise customization of protection schemes and interlocking logic, ensuring high-tier reliability in modern substation automation and industrial power grids.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eDetailed Technical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eManufacturer\u003c\/strong\u003e: ABB\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eModel Designation\u003c\/strong\u003e: REF542plus\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDevice Type\u003c\/strong\u003e: Digital Bay Control and Protection Unit\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ePrimary Function\u003c\/strong\u003e: Feeder Management, Transformer, and Motor Protection\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eAuxiliary Power Supply\u003c\/strong\u003e: 24–250 V DC \/ 48–240 V AC (Configuration dependent)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eRated Current Input\u003c\/strong\u003e: 1 A or 5 A (Software\/Hardware configurable)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eRated Voltage Input\u003c\/strong\u003e: Standard 100 V \/ 110 V AC (Compatible with high-precision sensors)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eProtection Logic\u003c\/strong\u003e: Overcurrent (Phase\/Earth), directional earth-fault, voltage, frequency, and thermal overload\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMeasurement Accuracy\u003c\/strong\u003e: Real-time current, voltage, frequency, power, and energy monitoring\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDigital I\/O Capacity\u003c\/strong\u003e: Multiple configurable channels for local interlocking and remote signaling\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCommunication Protocols\u003c\/strong\u003e: IEC 61850, Modbus RTU, IEC 60870-5-103\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eInterface\u003c\/strong\u003e: Integrated LCD display with keypad for local HMI monitoring and configuration\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e: -25°C to +70°C\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eIngress Protection\u003c\/strong\u003e: IP20 (Rear), IP54 (Optional front panel protection)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMounting\u003c\/strong\u003e: Panel-flush mount\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e: 190 mm x 170 mm x 200 mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eShipping Weight\u003c\/strong\u003e: 5.0 kg (3 kg net weight)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCompliance\u003c\/strong\u003e: IEC, CE Standards\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ABB","offers":[{"title":"Default Title","offer_id":43026870272090,"sku":"REF542PLUS","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/35.1_fd0ae8c4-2c12-4405-9bce-d4367057a4bb.jpg?v=1773199889","url":"https:\/\/www.spareoil.com\/products\/abb-ref542plus-base-unit-digital-bay-control-technology","provider":"SpareOil Automation","version":"1.0","type":"link"}