{"product_id":"abb-ref620-feeder-protection-and-control-relay","title":"ABB REF620 Feeder Protection and Control Relay","description":"\u003cp\u003eConfigured for feeder protection, control, measurement, and supervision in medium-voltage distribution systems, the \u003cstrong\u003eABB REF620 IEC\u003c\/strong\u003e (\u003cstrong\u003eREF620\u003c\/strong\u003e feeder protection and control relay) provides direct protection and control functions for incoming and outgoing feeders. It supports radial, looped, and meshed networks, including systems with distributed power generation, and communicates through IEC 61850, Modbus, DNP3, and IEC 60870-5-103 protocols.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eREF620 IEC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eABB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Series\u003c\/td\u003e\n\u003ctd\u003eRelion 620\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eFeeder Protection and Control Relay\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003eMedium-voltage incoming and outgoing feeder protection and control\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection Functions\u003c\/td\u003e\n\u003ctd\u003eFeeder, earth-fault, short-circuit, fault location, interconnection, capacitor bank, basic motor, and arc protection options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMeasurement\u003c\/td\u003e\n\u003ctd\u003eProtection and feeder measurement functions\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication\u003c\/td\u003e\n\u003ctd\u003eIEC 61850 Edition 1 and Edition 2, Modbus, DNP3, IEC 60870-5-103\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIEC 61850 Features\u003c\/td\u003e\n\u003ctd\u003eHSR, PRP, GOOSE, IEC 61850-9-2 LE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTime Synchronization\u003c\/td\u003e\n\u003ctd\u003eIEEE 1588 V2 Precision Time Protocol and other supported synchronization methods\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDisplay\u003c\/td\u003e\n\u003ctd\u003eLarge graphical display with customizable single-line diagrams\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHMI\u003c\/td\u003e\n\u003ctd\u003eLocal HMI and web-browser-based HMI\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInstallation\u003c\/td\u003e\n\u003ctd\u003eWithdrawable plug-in unit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInstrument Interface\u003c\/td\u003e\n\u003ctd\u003eSensors or conventional instrument transformers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eIEC 61850 and Feeder Protection Functions\u003c\/h3\u003e\n\u003cp\u003eREF620 supports native IEC 61850 Edition 1 and Edition 2 communication. HSR and PRP redundancy can be used for network availability, while GOOSE messaging provides supervised peer-to-peer communication between protection and control devices. IEC 61850-9-2 LE is supported for process-level communication and can reduce conventional wiring requirements.\u003c\/p\u003e\n\u003cp\u003eThe relay provides an earth-fault protection portfolio that includes multifrequency admittance-based protection. Optional functions include short-circuit and earth-fault location, interconnection protection for distributed power generation, capacitor bank protection, basic motor protection, and arc protection.\u003c\/p\u003e\n\u003cp\u003eProtection and control functions can be configured for application-specific feeder requirements. The withdrawable plug-in construction separates the relay unit from the fixed installation interface during installation and testing procedures.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Which communication protocols are supported by REF620 IEC?\u003cbr\u003eA: The supplied data specifies IEC 61850 Editions 1 and 2, Modbus, DNP3, and IEC 60870-5-103. IEC 61850 support includes HSR, PRP, GOOSE, and IEC 61850-9-2 LE.\u003c\/p\u003e\n\u003cp\u003eQ: Can REF620 use conventional instrument transformers?\u003cbr\u003eA: Yes. The supplied specifications state that the relay can operate with sensors or conventional instrument transformers.\u003c\/p\u003e\n\u003cp\u003eQ: Does REF620 provide network time synchronization?\u003cbr\u003eA: Yes. The relay supports multiple time synchronization methods, including IEEE 1588 V2 Precision Time Protocol for high-accuracy synchronization.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eInstall the REF620 withdrawable plug-in unit in the specified protection panel assembly and verify the mechanical engagement of the unit before energization. Confirm that the fixed interface, terminal connections, and protective earth arrangement correspond to the applicable ABB installation documentation.\u003c\/p\u003e\n\u003cp\u003eRoute current transformer, voltage transformer, sensor, control, and communication wiring separately where required by the panel design. Maintain appropriate physical separation between power circuits and communication or low-level signal wiring.\u003c\/p\u003e\n\u003cp\u003eFor IEC 61850 networks, verify the configured Ethernet topology and confirm HSR or PRP connections where redundancy is specified. Check GOOSE subscriptions, communication supervision, and device addressing before placing protection functions into service.\u003c\/p\u003e\n\u003cp\u003eBefore commissioning, verify protection settings against the feeder protection study and test the configured trip, alarm, measurement, communication, and interlocking functions. Where conventional instrument transformers are used, verify polarity, phase identification, and circuit continuity before applying operating voltage.\u003c\/p\u003e","brand":"ABB","offers":[{"title":"Default Title","offer_id":52752225108253,"sku":"REF620","price":9.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0983\/5387\/3181\/files\/REF6202.jpg?v=1789545632","url":"https:\/\/www.6gcontrols.com\/products\/abb-ref620-feeder-protection-and-control-relay","provider":"6G Controls","version":"1.0","type":"link"}