{"product_id":"abb-ref543-feeder-protection-and-control-terminal","title":"ABB REF543 Feeder Protection and Control Terminal","description":"\u003ch3\u003e\nOverview\n\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eREF543\u003c\/strong\u003e is a multifunctional feeder protection and control terminal designed for medium-voltage power distribution. ABB developed it to protect, control, measure, and supervise electrical feeders in substations and industrial networks. It supports various switchgear types and network configurations, including isolated neutral and resonant-earthed systems. The terminal also protects medium-sized three-phase motors and controls shunt capacitor banks. Its integrated PLC functions enable automation and sequence logic, reducing wiring complexity. Communication protocols include DNP3.0, Modbus, IEC 61850, Profibus-DPV1, and LON, allowing seamless integration into digital substations.\u003c\/p\u003e\n\u003ch3\u003e\nTechnical Specifications\n\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e REF543\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunction:\u003c\/strong\u003e Feeder protection, control, and monitoring\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAuxiliary Supply Voltage:\u003c\/strong\u003e 24–250 V DC\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDigital Inputs:\u003c\/strong\u003e Multiple configurable binary inputs\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAnalog Inputs:\u003c\/strong\u003e Supports RTD and analog modules\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommunication Protocols:\u003c\/strong\u003e DNP3.0, Modbus, IEC 61850, Profibus-DPV1, LON\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDisplay Interface:\u003c\/strong\u003e Front panel HMI with LED indicators\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting Options:\u003c\/strong\u003e Panel or rack mount\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 7.7 kg\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtection Class:\u003c\/strong\u003e IP20\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Supports single\/double busbar and duplex switchgear\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNetwork Support:\u003c\/strong\u003e Isolated neutral, resonant-earthed, and partially earthed networks\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdditional Features:\u003c\/strong\u003e Extensive PLC functions for automation and sequence control\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ABB","offers":[{"title":"Default Title","offer_id":52756901462301,"sku":"REF543","price":9.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0983\/5387\/3181\/files\/REF543_1000.jpg?v=1787207733","url":"https:\/\/www.6gcontrols.com\/products\/abb-ref543-feeder-protection-and-control-terminal","provider":"6G Controls","version":"1.0","type":"link"}