{"product_id":"ge-multilin-239-an-motor-protection-relay","title":"GE Multilin 239-AN Motor Protection Relay","description":"\u003ch2\u003eGE Multilin 239-AN Motor Protection Relay\u003c\/h2\u003e\n\u003cp\u003eConfigured for three-phase AC induction motor protection and analog telemetry execution in GE Multilin 239 Motor Protection Relay platforms, the \u003cstrong\u003eGE Multilin 239-AN\u003c\/strong\u003e (\u003cstrong\u003e239-AN\u003c\/strong\u003e Motor Protection Relay) provides direct physical\/electrical execution.\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\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\u003eGE Multilin 239-AN\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\u003e5 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e1\/4 DIN standard panel mount footprint\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-20 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\u003eMax 10 VA AC \/ 10 W DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eControl Power Supply\u003c\/td\u003e\n\u003ctd\u003e90-300 VDC \/ 70-265 VAC or 20-60 VDC \/ 20-48 VAC depending on model\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePhase Current Inputs\u003c\/td\u003e\n\u003ctd\u003e1 A or 5 A CT secondary, field configurable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAnalog Output\u003c\/td\u003e\n\u003ctd\u003e4-20 mA or 0-1 mA DC programmable output\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Port\u003c\/td\u003e\n\u003ctd\u003eRS485 serial interface\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Protocol\u003c\/td\u003e\n\u003ctd\u003eModbus RTU \/ GE Multilin protocol\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelay Outputs\u003c\/td\u003e\n\u003ctd\u003eAssignable Form-C (SPDT) relays\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelay Contact Rating\u003c\/td\u003e\n\u003ctd\u003e8 A continuous at 250 VAC \/ 30 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency Range\u003c\/td\u003e\n\u003ctd\u003e20 to 70 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDisplay Interface\u003c\/td\u003e\n\u003ctd\u003eLCD display with status and trip LEDs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Type\u003c\/td\u003e\n\u003ctd\u003ePanel mount\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eGE Multilin Industrial Control Communication Features\u003c\/h3\u003e\n\u003cp\u003eThe GE Multilin 239-AN integrates motor protection measurement with PLC\/DCS interface functions through an isolated RS485 communication channel and programmable analog output. The 4-20 mA or 0-1 mA signal output can transmit thermal capacity used, motor load current, and related operating values for external monitoring systems.\u003c\/p\u003e\n\u003cp\u003eThe relay supports deterministic serial communication through Modbus RTU protocol and GE Multilin communication protocol. The module includes a 36 VDC isolated active source communication interface with configurable baud rates from 1200 to 12k bps.\u003c\/p\u003e\n\u003cp\u003eThe firmware-controlled protection platform performs thermal modeling, current measurement, and trip logic processing. Functions include thermal overload protection with memory, short circuit detection, ground fault monitoring, phase loss detection, phase unbalance protection, locked rotor protection, undercurrent detection, and RTD or thermistor temperature input monitoring when equipped.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Does the GE Multilin 239-AN support hot-swap replacement during operation?\u003cbr\u003eA: The 239-AN is designed as a panel-mounted motor protection relay. Hot-swap operation is not specified. Replacement should be performed with the motor circuit and relay control power isolated according to site procedures.\u003c\/p\u003e\n\u003cp\u003eQ: What communication interface is available for PLC or DCS integration?\u003cbr\u003eA: The relay provides an isolated RS485 serial port supporting Modbus RTU and GE Multilin communication protocol.\u003c\/p\u003e\n\u003cp\u003eQ: How are motor current signals processed by the relay?\u003cbr\u003eA: The relay accepts 1 A or 5 A CT secondary inputs and performs RMS measurement, protection calculations, and thermal model processing.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eInstall the GE Multilin 239-AN in a standard 1\/4 DIN panel cut-out with adequate clearance for wiring access and maintenance. Verify that control power voltage matches the selected relay power supply range before energization.\u003c\/p\u003e\n\u003cp\u003eUse twisted shielded wiring for RS485 communication connections where required by the installation environment. Connect cable shields according to site grounding practices to reduce electrical noise coupling into low-level communication and measurement circuits.\u003c\/p\u003e\n\u003cp\u003eRoute CT input wiring separately from high-voltage power conductors to minimize induced interference. Confirm CT polarity, secondary ratings, and grounding practices before commissioning the motor protection functions.\u003c\/p\u003e\n\u003cp\u003eConfigure protection parameters, analog output scaling, communication address, and trip logic settings before placing the motor circuit into service. Verify relay input states and output contact operation through functional testing.\u003c\/p\u003e","brand":"General Electric","offers":[{"title":"Default Title","offer_id":44503294050392,"sku":"239-AN","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0670\/2039\/0488\/files\/239-AN2.jpg?v=1785922886","url":"https:\/\/www.industriaxplc.com\/id\/products\/ge-multilin-239-an-motor-protection-relay","provider":"IndustriaX Limited","version":"1.0","type":"link"}