{"product_id":"abb-ref611-feeder-protection-relay-1","title":"ABB REF611 Feeder Protection Relay","description":"\u003cp\u003eConfigured for the protection, control, measurement, and supervision of utility substations and industrial power systems, the \u003cstrong\u003eABB REF611\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eREF611\u003c\/strong\u003e Feeder Protection Relay, operates as a dedicated hardware component for directional or non-directional overcurrent and earth-fault protection across utility distribution networks.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\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\u003eREF611\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\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eRelion product family \/ 611 series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003eCompact design for new and retrofit installations\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eCompact withdrawable plug-in unit design\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003eIndustrial standard rating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eStandard auxiliary supply with optional self-healing communication\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection Type\u003c\/td\u003e\n\u003ctd\u003eDirectional or non-directional overcurrent and earth-fault protection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Support\u003c\/td\u003e\n\u003ctd\u003eIEC 61850 Editions 1 and 2, binary GOOSE messaging, optional HSR\/PRP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eFeeder Protection Relay\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eIndustrial Control \u0026amp; Drives Characteristics\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBackplane bus communication velocity Licences: Not applicable; supports advanced Ethernet-based communication including self-healing HSR\/PRP using an optional second Ethernet bus.\u003c\/li\u003e\n\u003cli\u003eProfinet \/ EtherNet\/IP deterministic networks: Fully supports IEC 61850 Editions 1 and 2, including binary GOOSE messaging for substation automation.\u003c\/li\u003e\n\u003cli\u003eI\/O density scaling: Features a powerful, user-friendly web-browser-based human-machine interface (HMI) including an input\/output (I\/O) matrix with visual selections.\u003c\/li\u003e\n\u003cli\u003eFirmware flash compatibility: Delivered pre-configured and factory-tested with application-specific standard configurations to minimize setup time.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What network configurations are suitable for directional versus non-directional earth-fault protection?\u003c\/p\u003e\n\u003cp\u003eA: Directional earth-fault protection is mainly used in isolated neutral or compensated networks, whereas non-directional earth-fault protection is intended for directly or low-impedance earthed neutral networks.\u003c\/p\u003e\n\u003cp\u003eQ: What design features facilitate swift installation and maintenance of the relay?\u003c\/p\u003e\n\u003cp\u003eA: The relay utilizes a withdrawable plug-in unit design along with a compact form factor that makes it suitable for both new and retrofit installations.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eEnsure that the panel cut-out and wiring harnesses match the compact withdrawable plug-in unit dimensions prior to insertion. Verify all fiber optic or Ethernet connections when utilizing optional HSR\/PRP redundant communication rings. Check current transformer and voltage transformer secondary circuits for correct phase orientation and secure terminal torques before energizing the protection relay.\u003c\/p\u003e","brand":"ABB","offers":[{"title":"Default Title","offer_id":45296096903283,"sku":"REF611","price":233.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0644\/4348\/2227\/files\/screenshot_2026-05-11_110-53-29_21e882a2-a183-44b3-87cf-7e2e06817f61.png?v=1785489030","url":"https:\/\/www.dcssupplier.com\/products\/abb-ref611-feeder-protection-relay-1","provider":"DcsSupplier Limited","version":"1.0","type":"link"}