{"product_id":"ge-multilin-469-p1-hi-a20-e-motor-protection-relay","title":"GE Multilin 469-P1-HI-A20-E Motor Protection Relay","description":"\u003cp\u003eThe \u003cstrong\u003eGE Multilin 469-P1-HI-A20-E\u003c\/strong\u003e (also referenced as the \u003cstrong\u003e469-P1-HI-A20-E-H\u003c\/strong\u003e enhanced variant) is a comprehensive, digital management device engineered to protect, diagnose, and control medium-to-large synchronous and induction motor systems. This relay integrates high-speed thermal modeling, advanced diagnostic algorithms, and dynamic current monitoring to prevent catastrophic failures like winding degradation or rotor structural fatigue.\u003c\/p\u003e\n\u003ch3\u003eTechnical 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\u003e\u003cstrong\u003eModel Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e469-P1-HI-A20-E \/ 469-P1-HI-A20-E-H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eManufacturer\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGeneral Electric (GE Multilin)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMotor Management \u0026amp; Protection Relay\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePhase Current Inputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 A nominal phase CT secondaries (\u003cstrong\u003eP1\u003c\/strong\u003e configuration)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDigital Inputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e9 discrete, opto-isolated inputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAnalog Outputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4 channels, programmable 0 to 1 mA analog outputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEnvironmental Shielding\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHarsh environment chemical conformal coating (\u003cstrong\u003eE\u003c\/strong\u003e option)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-40°C to +60°C (-40°F to +140°F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStorage Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-40°C to +80°C (-40°F to +176°F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSoftware Platform\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eEnerVista 469 Setup Software\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLocal Interface\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRedesigned keypad, diagnostic status LEDs, front RS232 programming port\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDisplay Panel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eEnhanced 40-character backlit liquid-crystal display (LCD)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eKey Operational Systems \u0026amp; Engineering Insights\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1 A Phase CT Input Precision (\"P1\"):\u003c\/strong\u003e The \u003cstrong\u003eP1\u003c\/strong\u003e hardware identifier dictates absolute engineering compatibility with \u003cstrong\u003e1 A secondary Current Transformers\u003c\/strong\u003e. Matching this nominal input to your field CT secondaries is critical. Connecting a 1 A rating to a 5 A circuit will compromise thermal modeling calculations and cause blind spots in overcurrent detection thresholds, risking unmonitored insulation breakdown.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHarsh Environment Conformal Coating (\"E\"):\u003c\/strong\u003e The internal printed circuit board (PCB) assemblies are treated with a specialized polymeric conformal coating layer. This chemical barrier prevents moisture condensation, conductive airborne particulate tracking, and corrosive gas oxidation from bridging trace paths. It stabilizes the device's lifespan in highly humid or chemically aggressive environments like paper mills, oil refineries, and wastewater facilities.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdvanced Predictive Diagnostics \u0026amp; Telemetry:\u003c\/strong\u003e Beyond raw tripping functionality, the relay runs a continuous self-assessment diagnostic loop tracking broken rotor bars, unbalance trends, and load profile anomalies. Interfacing the relay with the \u003cstrong\u003eEnerVista 469 software\u003c\/strong\u003e gives control room operators access to high-resolution data visualization and system diagnostic logs. This simplifies motor health trends and reduces unexpected downtime through predictive maintenance targeting.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eField Installation \u0026amp; Grounding Protocols\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMechanical Panel Clearances:\u003c\/strong\u003e Seat the drawout relay chassis securely within its designated switchgear cutout panel. Ensure that all integrated terminal fingers mate flush with the backplane connectors. Maintain at least 50 mm of unobstructed ventilation envelope above and below the external frame enclosure to prevent internal heat concentration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSignal Control Ducts and Ground Isolation:\u003c\/strong\u003e Route all low-level analog lines, 1 A CT secondaries, and communication cabling through dedicated low-voltage instrument wireways. To isolate high-frequency electromagnetic noise caused by large motor starts from the processor core, establish a direct low-impedance bond between the relay chassis grounding stud and the main copper equipment grounding bus using a heavy braided strap.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"General Electric","offers":[{"title":"Default Title","offer_id":47901803184318,"sku":"469-P1-HI-A20-E","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/1145\/5422\/files\/screenshot_2026-06-08_09-54-13_dd7baf22-459d-477f-a61e-d41c95994371.png?v=1782899967","url":"https:\/\/www.autooiltech.com\/products\/ge-multilin-469-p1-hi-a20-e-motor-protection-relay","provider":"AutoOilTech Limited","version":"1.0","type":"link"}