{"product_id":"ge-735-5-5-hi-485-sr-735-5-5-hi-485-735-series-feeder-protection-relays","title":"GE 735-5-5-HI-485 SR-735-5-5-HI-485 735 Series Feeder Protection Relays","description":"\u003ch2\u003eGE 735-5-5-HI-485 Multilin Feeder Protection Relay\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eGE 735-5-5-HI-485\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eSR-735-5-5-HI-485\u003c\/strong\u003e Feeder Protection Relay, operates as a dedicated hardware component for phase and ground overcurrent fault detection within substation switchgear platforms. The relay processes 5 A nominal Phase and Ground CT secondary inputs to execute high-speed trip outputs (50\/50G instant and 51\/51G time-overcurrent). Integrated RS485 serial communication transmits real-time metering and event records over Modbus RTU protocols to central control 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\u003e735-5-5-HI-485\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eGE Multilin (General Electric)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e5.35 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eStandard 735 Series panel-mount footprint\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-40 to +70 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eHI Range: 90-300 VDC or 70-265 VAC (48-62 Hz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePhase CT Input\u003c\/td\u003e\n\u003ctd\u003e5 A nominal secondary\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGround CT Input\u003c\/td\u003e\n\u003ctd\u003e5 A nominal secondary\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection Functions\u003c\/td\u003e\n\u003ctd\u003ePhase Overcurrent (50\/51), Ground Overcurrent (50G\/51G)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Contact Rating\u003c\/td\u003e\n\u003ctd\u003eForm-C contacts rated 10 A at 250 VAC \/ 30 VDC (Resistive)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSerial Interface\u003c\/td\u003e\n\u003ctd\u003eRS485 2-wire serial port\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtocol Support\u003c\/td\u003e\n\u003ctd\u003eModbus RTU, GE Proprietary (up to 19.2 kbps baud rate)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMetering \/ Logging\u003c\/td\u003e\n\u003ctd\u003ePhase Current, Ground Current, Peak Demand, Sequence of Events\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eEthernet\/IP Deterministic Networks \u0026amp; Firmware Flash Compatibility\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eGE 735-5-5-HI-485\u003c\/strong\u003e communicates across industrial control architectures using its dedicated 2-wire RS485 port linked to upstream network bridges and sub-station controllers. Maintained firmware flash compatibility enables deterministic processing of event sequences, trip triggers, and continuous metering data feeds. Internal microcontroller registers isolate protective algorithm execution from communication polling overhead, ensuring fast response times during fault conditions while maintaining steady transmission of telemetry parameters over Modbus RTU networks.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What power supply range is required for the \"HI\" option on this relay?\u003c\/p\u003e\n\u003cp\u003eA: The \"HI\" suffix indicates an auxiliary power supply designed to accept 90 to 300 VDC or 70 to 265 VAC (48-62 Hz), allowing operation from standard station battery banks or station auxiliary AC buses.\u003c\/p\u003e\n\u003cp\u003eQ: How are the output contacts wired for trip execution?\u003c\/p\u003e\n\u003cp\u003eA: The relay provides programmable Form-C output contacts containing both normally open (NO) and normally closed (NC) terminals rated for 10 A at 250 VAC or 30 VDC. Trip output circuits must connect through the NO contacts configured via internal firmware mapping.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eMount the chassis into a cutout panel within a switchgear cabinet using the panel-mount hardware. Ensure the installation location maintains an ambient operating temperature strictly between -40 deg C and +70 deg C, with adequate ventilation around the outer housing.\u003c\/p\u003e\n\u003cp\u003eConnect the 5 A Phase and Ground current transformer secondary leads to the terminal block using ring lugs. Tighten all CT connection screws to prevent open-circuit conditions. Route the 2-wire RS485 communication line using shielded twisted-pair cabling. Ground the cable shield at a single cabinet earth point to block high-frequency noise. Connect the main grounding lug on the relay chassis directly to the substation earth bar using a heavy-gauge copper wire before applying auxiliary power to the HI power terminals.\u003c\/p\u003e","brand":"GE Fanuc","offers":[{"title":"Default Title","offer_id":42870822731866,"sku":"735-5-5-HI-485","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/206_9f5cd899-b688-4437-a860-45418e5c3783.jpg?v=1772244286","url":"https:\/\/www.spareoil.com\/products\/ge-735-5-5-hi-485-sr-735-5-5-hi-485-735-series-feeder-protection-relays","provider":"SpareOil Automation","version":"1.0","type":"link"}