{"product_id":"sel-sel-751a-feeder-protection-relay-ready-to-ship","title":"SEL-751A | Schweitzer Engineering Feeder Protection Relay","description":"\u003ch4\u003eDescription \u003c\/h4\u003e\n\u003cp\u003eThe Schweitzer Engineering SEL-751A is a feeder protection relay designed to provide advanced fault detection, monitoring, and control for power distribution systems. It supports a wide range of protective functions, enabling precise and dependable operation in utility and industrial applications. Built for flexibility and robust performance, the SEL-751A enhances grid reliability and system stability.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 28.8743%;\"\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 70.9064%;\"\u003eNew\/Never Used Surplus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 28.8743%;\"\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 70.9064%;\"\u003eSchweitzer Engineering\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 28.8743%;\"\u003e\u003cstrong\u003eCategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 70.9064%;\"\u003eProtection Relays \/ Power Distribution\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 28.8743%;\"\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 70.9064%;\"\u003eSEL-751A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 28.8743%;\"\u003e\u003cstrong\u003eSubcategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 70.9064%;\"\u003eFeeder Protection Relay\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 28.8743%;\"\u003e\u003cstrong\u003eProtection Functions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 70.9064%;\"\u003eOvercurrent, over\/undervoltage, over\/underfrequency, ROCOF (optional)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 28.8743%;\"\u003e\u003cstrong\u003eBreaker Failure Protection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 70.9064%;\"\u003eYes, for one three-pole breaker\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 28.8743%;\"\u003e\u003cstrong\u003eArc-Flash Detection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 70.9064%;\"\u003eOptional\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 28.8743%;\"\u003e\u003cstrong\u003eReclosing\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 70.9064%;\"\u003eFour-shot programmable recloser\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 28.8743%;\"\u003e\u003cstrong\u003eControl Interface\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 70.9064%;\"\u003eFour programmable pushbuttons\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 28.8743%;\"\u003e\u003cstrong\u003eCommunications\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 70.9064%;\"\u003eEthernet, serial, IEC 61850, Modbus TCP\/Serial, DNP3 LAN\/WAN\/serial, Mirrored Bits\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 28.8743%;\"\u003e\u003cstrong\u003eLogic Engine\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 70.9064%;\"\u003eSELogic control equations\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 28.8743%;\"\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 70.9064%;\"\u003e–40°C to +85°C (–40°F to +185°F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 28.8743%;\"\u003e\u003cstrong\u003eEnvironmental Protection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 70.9064%;\"\u003eOptional conformal coating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 28.8743%;\"\u003e\u003cstrong\u003eHazardous Location Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 70.9064%;\"\u003eATEX, UL Class I Division 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 28.8743%;\"\u003e\u003cstrong\u003eInstallation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 70.9064%;\"\u003eRetrofit kit and mounting adapter support\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 28.8743%;\"\u003e\u003cstrong\u003eExpansion\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 70.9064%;\"\u003eSlide-in expansion cards for I\/O and communication\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003cspan style=\"font-size: 0.875rem;\"\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eInformation About SEL-751A\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\n\u003c\/h4\u003e\n\u003cp\u003eThe SEL-751A is part of Schweitzer Engineering Laboratories’ protective relay family, engineered to deliver comprehensive feeder protection using time-overcurrent, instantaneous-overcurrent, voltage, and frequency protection elements. Designed for high configurability, it offers optional capabilities such as synchronism check, arc-flash detection, dc battery monitoring, and demand metering when used with compatible voltage inputs. Communications flexibility is a key feature, with support for Ethernet, serial protocols, IEC 61850, Modbus, DNP3, and Mirrored Bits for custom integration into SCADA and protection systems. Its rugged construction meets stringent environmental requirements, making it suitable for harsh conditions including hazardous locations requiring Class I Division 2 certification.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eComprehensive feeder protection: Includes overcurrent, voltage, and frequency elements.\u003c\/li\u003e\n\u003cli\u003eOptional advanced functions: Arc-flash detection, synchronism check, ROCOF, and battery monitoring.\u003c\/li\u003e\n\u003cli\u003eProgrammable controls: Four configurable front-panel pushbuttons.\u003c\/li\u003e\n\u003cli\u003eFlexible communications: Supports Ethernet, serial, IEC 61850, DNP3, Modbus, and Mirrored Bits.\u003c\/li\u003e\n\u003cli\u003eSELogic control equations: Enables custom logic, analog scaling, and input latching for SCADA.\u003c\/li\u003e\n\u003cli\u003eFour-shot recloser: Programmable reclosing with optional synchronism check.\u003c\/li\u003e\n\u003cli\u003eRugged construction: Operates from –40°C to +85°C and withstands surges, vibration, and contaminants.\u003c\/li\u003e\n\u003cli\u003eHazardous location certified: ATEX- and UL Class I, Division 2-certified.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe SEL-751A delivers the reliability and precision required for modern feeder protection and power system monitoring.\u003c\/p\u003e","brand":"Schweitzer Engineering","offers":[{"title":"Default Title","offer_id":47359637881130,"sku":"SEL-751A","price":2902.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/0392\/4266\/files\/SEL-751A.jpg?v=1705504372","url":"https:\/\/iqelectro.com\/products\/sel-sel-751a-feeder-protection-relay-ready-to-ship","provider":"IQElectro","version":"1.0","type":"link"}