{"product_id":"ge-multilin-489-p5-hi-a20-e-h-generator-management-relay","title":"GE Multilin 489-P5-HI-A20-E-H Generator Management Relay","description":"\u003ch2\u003eGE Multilin 489-P5-HI-A20-E-H Generator Management Relay\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eGE Multilin 489-P5-HI-A20-E-H\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e489\u003c\/strong\u003e Generator Management Relay, operates as a dedicated hardware component for generator protection, monitoring, and control within GE Multilin protection and automation platforms. The relay processes current, voltage, RTD, digital input, and analog output signals for generator electrical condition supervision.\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\u003e489-P5-HI-A20-E-H\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\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e18 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-40 deg C to +60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eTypical 15 W, maximum 35 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeries\u003c\/td\u003e\n\u003ctd\u003e489 Generator Management Relay\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eControl Power Supply\u003c\/td\u003e\n\u003ctd\u003e100-240 V AC (50\/60 Hz), 125\/250 V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePhase CT Inputs\u003c\/td\u003e\n\u003ctd\u003e5 A CT secondary\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGround CT Inputs\u003c\/td\u003e\n\u003ctd\u003e1 A or 5 A selectable secondary\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVT Secondary Inputs\u003c\/td\u003e\n\u003ctd\u003e50 V to 240 V AC nominal phase-to-neutral \/ open delta\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAnalog Outputs\u003c\/td\u003e\n\u003ctd\u003e8 assignable channels, 4-20 mA DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAnalog Output Load\u003c\/td\u003e\n\u003ctd\u003eMaximum 1200 ohm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRTD Inputs\u003c\/td\u003e\n\u003ctd\u003e12 channels supporting 100 ohm Platinum, 100 ohm Nickel, 120 ohm Nickel, and 10 ohm Copper\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDigital Inputs\u003c\/td\u003e\n\u003ctd\u003e9 assignable dry-contact inputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Relays\u003c\/td\u003e\n\u003ctd\u003e6 output relays for Trip, Aux, Alarm, and Service functions\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Ports\u003c\/td\u003e\n\u003ctd\u003eFront RS232 and rear RS485 Modbus RTU\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtective Coating\u003c\/td\u003e\n\u003ctd\u003eHarsh environment conformal coating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCase Design\u003c\/td\u003e\n\u003ctd\u003eFully drawout with automatic CT shorting\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eProfinet \/ EtherNet-IP and Industrial Relay Integration Characteristics\u003c\/h3\u003e\n\u003cp\u003eThe GE Multilin 489-P5-HI-A20-E-H is designed around generator protection I\/O processing with deterministic relay signal execution. Its firmware-based control structure manages phase current measurements, voltage supervision, thermal model calculations, and programmable output actions. The fully drawout case design incorporates automatic CT shorting during removal, reducing exposure during maintenance operations.\u003c\/p\u003e\n\u003cp\u003eThe relay supports firmware flash compatibility within the 489 platform architecture and maintains configuration parameters for protection functions including impedance time delay adjustment, negative sequence overcurrent pickup settings, phase distance offset mho characteristics, and sequential trip assignments.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions (FAQ)\u003c\/h3\u003e\n\u003cp\u003eQ: What current input configuration is supported by the 489-P5-HI-A20-E-H?\u003cbr\u003eA: The relay accepts 5 A nominal phase CT secondary inputs and provides selectable 1 A or 5 A ground CT secondary input configuration.\u003c\/p\u003e\n\u003cp\u003eQ: Does the relay support direct analog signal transmission?\u003cbr\u003eA: Yes. The A20 option provides 8 assignable 4-20 mA DC analog outputs with isolated output capability.\u003c\/p\u003e\n\u003cp\u003eQ: What communication interfaces are available on this model?\u003cbr\u003eA: The relay provides a front RS232 port and a rear RS485 port using Modbus RTU protocol.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eInstall the relay in a compatible protective relay panel or drawout enclosure with adequate mechanical support and environmental protection. Verify CT polarity and secondary wiring before energizing the unit. CT circuits should remain properly terminated during installation and removal procedures.\u003c\/p\u003e\n\u003cp\u003eSeparate analog signal wiring, RTD cables, and communication cables from high-current power conductors to reduce electrical interference. Apply shielded cable practices according to site grounding standards, connecting cable shields at the recommended termination point.\u003c\/p\u003e\n\u003cp\u003eConfirm control power wiring matches the selected AC or DC supply range before startup. Check all digital input dry-contact circuits, relay output connections, and RS485 communication termination settings before placing the relay into service.\u003c\/p\u003e","brand":"General Electric","offers":[{"title":"Default Title","offer_id":44508297396312,"sku":"489-P5-HI-A20-E-H","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0670\/2039\/0488\/files\/489-P5-HI-A20-E-H.jpg?v=1786007219","url":"https:\/\/www.industriaxplc.com\/products\/ge-multilin-489-p5-hi-a20-e-h-generator-management-relay","provider":"IndustriaX Limited","version":"1.0","type":"link"}