{"product_id":"ge-735-5-5-hi-485-feeder-protection-relay","title":"GE 735-5-5-HI-485 Feeder Protection Relay","description":"\u003cp\u003eThe \u003cstrong\u003eGE Multilin 735-5-5-HI-485\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eSR73555HI485\u003c\/strong\u003e Feeder Protection Relay, operates as a dedicated hardware component for electrical system monitoring and overcurrent protection within industrial power networks. It processes secondary current vectors natively at the switchgear tier to execute direct physical breaking commands and trip logic sequences parallel to master control network platforms.\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\u003e735-5-5-HI-485 (SR73555HI485)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eGE Multilin\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeries\u003c\/td\u003e\n\u003ctd\u003eSR 735 Series (Standard 735)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eCanada\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e11.79 lbs (Approx. 5.35 kg)\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\u003ctr\u003e\n\u003ctd\u003ePhase CT Secondary\u003c\/td\u003e\n\u003ctd\u003e5 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGround CT Secondary\u003c\/td\u003e\n\u003ctd\u003e5 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eControl Power Options\u003c\/td\u003e\n\u003ctd\u003e90–300 VDC \/ 70–265 VAC (50\/60 Hz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection Elements\u003c\/td\u003e\n\u003ctd\u003e50\/51 (Phase Overcurrent) and 50G\/51G (Ground Overcurrent)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSerial Interface\u003c\/td\u003e\n\u003ctd\u003eRS485 2-wire communication port\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLifecycle Status\u003c\/td\u003e\n\u003ctd\u003eDiscontinued by manufacturer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eIndustrial Control \u0026amp; Drive Integration\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBackplane Bus Communication Velocity Licences and Relay Interlocking:\u003c\/strong\u003e The internal protection engine runs protective algorithms and trip logic parameters independently. By computing curves and phase shifts locally, it guarantees that high-speed fault calculations execute instantly without altering backplane bus communication velocity properties assigned to auxiliary serial monitoring loops.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProfinet \/ EtherNet\/IP Deterministic Networks Mapping:\u003c\/strong\u003e Real-time currents, fault timestamps, and trip state flags are gathered by the local processor. Through external gateway blocks, these serial Modbus registers map straight into supervisory Profinet \/ EtherNet\/IP deterministic networks, enabling main control rooms to line up power system logs across the facility.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eI\/O Density Scaling and Breaker Control Optimization:\u003c\/strong\u003e Incorporating phase overcurrent (50\/51) and ground fault (50G\/51G) elements into a heavy-duty 11.79 lbs drawout chassis optimizes panel layout footprints. This standalone configuration streamlines I\/O density scaling inside switchgear enclosures by eliminating the need for separate discrete metering instruments and timing relays.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What technical processing behavior manifests if the 2-wire RS485 communication line experiences an unexpected open circuit during monitoring?\u003c\/p\u003e\n\u003cp\u003eA: The internal protective algorithms continue to run at full speed without modification. The device operates as a completely autonomous protection node, pulling current data and executing trip commands via its hardwired output contacts while setting an offline fault flag across the serial link.\u003c\/p\u003e\n\u003cp\u003eQ: Can this 11.79 lbs protection relay assembly be drawn out or hot-swapped while the primary feeder line is actively carrying high-voltage current?\u003c\/p\u003e\n\u003cp\u003eA: Yes, provided the matching cradle features integrated, automatic current transformer (CT) shorting bars. The drawout chassis structure is designed to short-circuit the 5 A phase and ground CT secondary loops automatically upon extraction, preventing high-voltage inductive spikes across open CT terminals while the main power line remains active.\u003c\/p\u003e","brand":"General Electric","offers":[{"title":"Default Title","offer_id":47750168051902,"sku":"735-5-5-HI-485","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/1145\/5422\/files\/screenshot_2026-06-25_14-17-14.png?v=1782370968","url":"https:\/\/www.autooiltech.com\/ar\/products\/ge-735-5-5-hi-485-feeder-protection-relay","provider":"AutoOilTech Limited","version":"1.0","type":"link"}