{"product_id":"multilin-239-an-h-motor-protection-harsh-environment","title":"Multilin 239-AN-H Motor Protection Harsh Environment","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eGE Multilin 239-AN-H\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eprovides advanced microprocessor-based protection for small to medium-sized three-phase AC motors. This solid-state relay monitors critical electrical parameters to defend against thermal damage, mechanical failures, and power quality issues. We supply this unit as\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e100% Brand New\u003c\/strong\u003e, featuring the specialized\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e-H suffix\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003efor Harsh Environment Conformal Coating. This protective layer shields the internal circuitry from moisture, salt spray, and corrosive atmospheric contaminants, making the 239-AN-H the standard choice for mining, wastewater treatment, and offshore oil and gas facilities.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cp\u003eThe 239-AN-H integrates high-speed sensing with a rugged power supply to ensure continuous motor monitoring.\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003ctd\u003e\u003cstrong\u003eFeature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eControl Power (AC)\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e70–265 VAC (50\/60 Hz)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eControl Power (DC)\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e90–300 VDC\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eOutput Contact Rating\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e10 Amp @ 250 VAC (Resistive)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eProtection Elements\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eThermal Overload, Ground Fault, Phase Unbalance, Single Phasing\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eMechanical Protection\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eLocked Rotor, Mechanical Jam, Undercurrent\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eThermal Model\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e15 Selectable Standard Overload Curves\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eInhibit Functions\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eStarts-per-hour, Time-between-starts, Restart Inhibit\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eCommunication\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eRS485 Port (Modbus RTU Protocol)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eCoating\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eHarsh Environment Conformal Coating (Option -H)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eOperating Temp\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e–20°C to +60°C (–4°F to +140°F)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eEngineering Advantages\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ePrecision Thermal Modeling:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe 239-AN-H calculates motor temperature in real-time by analyzing current inputs through 15 selectable thermal curves. This prevents nuisance trips during heavy-load startups while ensuring a definitive shutdown before the motor insulation reaches critical degradation temperatures.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCorrosion Resistance:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe conformal coating on the internal PCBA prevents \"silver whiskering\" and dendritic growth caused by humidity and chemical vapors. This ensures long-term reliability in environments where standard, uncoated relays frequently fail due to short circuits.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eStartup Supervision:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe relay tracks \"Starts-per-hour\" and \"Time-between-starts\" to prevent the excessive heat buildup caused by rapid recycling of the motor. These inhibits protect the rotor and stator from thermal fatigue, significantly extending the motor's operational lifespan.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ePredictive Diagnostics:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eAn integrated alphanumeric LCD and RS485 Modbus port provide access to trip history and event recording. Maintenance teams use this data to identify recurring mechanical jams or phase unbalances before a catastrophic motor failure occurs.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFAQs\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the benefit of the \"-H\" conformal coating option?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe coating provides a non-conductive barrier against moisture, dust, and corrosive chemicals. In industries like wastewater or chemical processing, this coating prevents atmospheric contaminants from corroding the electronic traces on the circuit board, reducing the risk of premature relay failure.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCan the 239-AN-H be used with both AC and DC control power?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. The universal power supply accepts a wide range of inputs, including 70–265 VAC and 90–300 VDC. This flexibility allows the relay to operate using standard utility power or a substation battery bank.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHow does the relay handle ground faults?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe 239-AN-H monitors zero-sequence current. When a ground fault exceeds the user-defined threshold, the relay triggers an alarm or a trip signal to isolate the motor, preventing potential fire hazards and further equipment damage.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eIs the 10A output rating sufficient for direct motor control?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe 10A rating refers to the relay's internal output contacts. These contacts typically switch the coil of a larger motor starter or contactor rather than the primary motor leads themselves. Always verify that your contactor coil's inrush current falls within the 10A resistive rating.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GE Fanuc","offers":[{"title":"Default Title","offer_id":42870847242330,"sku":"239-AN","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/387.jpg?v=1771991377","url":"https:\/\/www.spareoil.com\/products\/multilin-239-an-h-motor-protection-harsh-environment","provider":"SpareOil Automation","version":"1.0","type":"link"}