{"product_id":"ge-multilin-489-p5-lo-a20-e-low-voltage-generator-protection-relay","title":"GE Multilin 489-P5-LO-A20-E Low Voltage Generator Protection Relay","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe GE Multilin \u003cstrong\u003e489-P5-LO-A20-E\u003c\/strong\u003e is a generator protection relay engineered for both induction and synchronous generators. As part of GE’s SR family, which also includes the 469 Motor Protection Relay and 735 Feeder Protection Relay, the \u003cstrong\u003e489-P5-LO-A20-E\u003c\/strong\u003e provides advanced generator protection while also offering comprehensive motor protection features.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis relay operates at 25, 50, or 60 Hz and is designed with a user-friendly interface, including a 40-character LCD display, numeric keypad, and integrated RS232 port for programming and diagnostics. Its draw-out construction minimizes replacement time, while extensive I\/O and communication options ensure seamless integration into modern power systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eManufacturer:\u003c\/strong\u003e GE Multilin\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eModel Number:\u003c\/strong\u003e 489-P5-LO-A20-E\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Generator Protection Relay\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eFrequency Range:\u003c\/strong\u003e 25, 50, or 60 Hz\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eFront Panel Interface:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eLCD display (40 characters)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eNumeric keypad and status indicators\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eRS232 port for local communication\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eBack Panel Connectivity:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e12 RTD inputs (programmable)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e6 output relays\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e2 RS485 ports (ModbusRTU \/ DNP 3.0, up to 19200 bps)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e4 VT inputs\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e4 isolated 4–20 mA analog inputs\/outputs\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e7 assignable digital inputs\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e7 CT inputs for three-phase and ground current sensing\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eSafety and filter ground connection\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eCompliance:\u003c\/strong\u003e SWC, C37.990 EMI\/RFI immunity standards\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eAdvanced generator protection with voltage-dependent overload curves\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eComprehensive motor protection including torque metering and broken rotor bar detection\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eEnhanced thermal model with multiple RTD inputs for stator monitoring\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eEvent reports, waveform capture, and data logging for troubleshooting\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eBuilt-in simulation functions for simplified testing and commissioning\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eField-upgradable firmware and optional conformal coating for harsh environments\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\u003cstrong\u003eApplication Scenarios\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eGenerator protection in industrial and utility systems\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eMotor-driven generator applications requiring advanced thermal protection\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eIntegration into SCADA and energy management platforms\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\u003cstrong\u003eFAQ\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eQ: What frequency ranges does the 489-P5-LO-A20-E support?\u003c\/strong\u003e  \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eA:\u003c\/strong\u003e It can operate at 25, 50, or 60 Hz.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eQ: Does this relay provide motor protection features?\u003c\/strong\u003e  \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes, it includes torque metering, overload curves, and broken rotor bar protection.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eQ: What communication protocols are supported?\u003c\/strong\u003e  \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eA:\u003c\/strong\u003e ModbusRTU and DNP 3.0 via RS485, with optional Ethernet and DeviceNet ports.\u003c\/span\u003e\u003c\/p\u003e","brand":"General Electric","offers":[{"title":"Default Title","offer_id":52449823260981,"sku":"489-P5-LO-A20-E","price":66.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/7630\/5461\/files\/350-C-P5-G5-H-S-M-N-P-SN-D-N_49102bd1-d048-46fd-9bc8-b7491b2886a5.jpg?v=1773814809","url":"https:\/\/www.5gplc.com\/products\/ge-multilin-489-p5-lo-a20-e-low-voltage-generator-protection-relay","provider":"High Five PLC Solution Limited","version":"1.0","type":"link"}