{"product_id":"mtl4641-repeater-power-supply-eaton-4-20ma-signal-isolator","title":"MTL4641 Repeater Power Supply | Eaton 4-20mA Signal Isolator","description":"\u003ch3\u003eEngineering Precision Overview\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e\u003cspan style=\"color: #0056b3;\"\u003eMTL4641\u003c\/span\u003e\u003c\/strong\u003e is a high-performance, single-channel repeater power supply engineered for precision loop control. It provides a fully-floating DC supply to energize 2- or 3-wire 4\/20mA transmitters while repeating the signal into an isolated secondary circuit. Designed specifically for industrial automation, the \u003cstrong\u003e\u003cspan style=\"color: #0056b3;\"\u003eMTL4641\u003c\/span\u003e\u003c\/strong\u003e facilitates seamless bi-directional HART communication for 2-wire loops. For alternative control architectures, the \u003cstrong\u003eMTL4641S\u003c\/strong\u003e variant offers current-sink functionality. This module ensures stable, low-ripple signal transmission, making it an ideal choice for complex process measurement loops.\u003c\/p\u003e\n\n\u003ch3\u003eTechnical Performance Matrix\u003c\/h3\u003e\n\u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eBrand \/ Series:\u003c\/strong\u003e \u003cstrong\u003eEaton\u003c\/strong\u003e \/ \u003cstrong\u003eMTL4600\u003c\/strong\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e \u003cstrong\u003e\u003cspan style=\"color: #0056b3;\"\u003eMTL4641\u003c\/span\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSignal Range:\u003c\/strong\u003e 4 to 20mA (0-24mA over-range)\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eLoad Resistance:\u003c\/strong\u003e 0 to 465Ω @ 20mA\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eTransfer Accuracy:\u003c\/strong\u003e \u0026lt; 20µA (Terminals 1 \u0026amp; 2) \/ \u0026lt; 30µA (Terminals 1 \u0026amp; 3)\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eResponse Time:\u003c\/strong\u003e \u0026lt; 50µs settlement time\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eTemperature Drift:\u003c\/strong\u003e \u0026lt; 0.8µA\/°C\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eCircuit Ripple:\u003c\/strong\u003e \u0026lt; 50µA peak-to-peak\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePower Dissipation:\u003c\/strong\u003e 0.8W @ 24V DC\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eTransmitter Voltage:\u003c\/strong\u003e 20V @ 20mA\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eGlobal PLC Spare HUB's Insight\u003c\/h3\u003e\n\u003cp\u003eAt Global PLC Spare HUB, we recognize the \u003cstrong\u003e\u003cspan style=\"color: #0056b3;\"\u003eMTL4641\u003c\/span\u003e\u003c\/strong\u003e as the gold standard for analog signal isolation. It excels in environments where electrical noise interferes with precision instrumentation. We recommend the \u003cstrong\u003e\u003cspan style=\"color: #0056b3;\"\u003eMTL4641\u003c\/span\u003e\u003c\/strong\u003e for refinery flow monitoring and pressure transmitter loops where HART protocol transparency is mission-critical. Its ability to maintain signal fidelity across high-impedance loads makes it a reliable asset for DCS and PLC integration.\u003c\/p\u003e\n\n\u003ch3\u003eDiagnostics and Application Suitability\u003c\/h3\u003e\n\u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eDiagnostic Capability:\u003c\/strong\u003e Integrated green LED provides immediate power verification. The low-ripple output allows for easy oscilloscope-based noise diagnostics during loop troubleshooting.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSuitable Equipment:\u003c\/strong\u003e Compatible with standard 4-20mA smart transmitters, valve positioners, and I\/O cards requiring galvanic isolation.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eKey Application:\u003c\/strong\u003e Ideal for hazardous or interference-prone environments where maintaining a floating loop is essential to prevent ground-induced signal errors.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eLogistics and Quality Assurance\u003c\/h3\u003e\n\u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eShipping:\u003c\/strong\u003e Expedited dispatch via FedEx, UPS, or DHL within 24-48 hours.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 12-month standard manufacturer warranty for all functional components.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePackaging:\u003c\/strong\u003e Industrial-grade secure packaging to ensure integrity during transit.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eExpert Professional FAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eIs the MTL4641 suitable for non-HART analog sensors?\u003c\/strong\u003e\u003cbr\u003e\nYes, while the unit fully supports HART communication, it functions perfectly as a high-precision repeater for standard non-smart 4-20mA analog devices.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eHow does the MTL4641S differ from the standard MTL4641 in a wiring scenario?\u003c\/strong\u003e\u003cbr\u003e\nThe standard \u003cstrong\u003e\u003cspan style=\"color: #0056b3;\"\u003eMTL4641\u003c\/span\u003e\u003c\/strong\u003e actively drives current into the load, whereas the MTL4641S functions as a current sink, requiring the receiving device to provide the loop power.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat is the recommended approach for load matching with the MTL4641?\u003c\/strong\u003e\u003cbr\u003e\nEnsure your total loop impedance remains within the 0 to 465Ω range at 20mA; exceeding this will cause signal saturation and non-linear output response.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhy should I choose this for a 3-wire transmitter application?\u003c\/strong\u003e\u003cbr\u003e\nThis module provides a fully isolated power supply, effectively eliminating ground loops that often plague 3-wire setups in large-scale plant networks.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCan I use this for safety-critical loops?\u003c\/strong\u003e\u003cbr\u003e\nThe \u003cstrong\u003e\u003cspan style=\"color: #0056b3;\"\u003eMTL4641\u003c\/span\u003e\u003c\/strong\u003e is designed for high-reliability process control; however, please consult your site’s safety documentation to ensure its SIL rating matches your specific safety loop requirements.\u003c\/p\u003e","brand":"MTL","offers":[{"title":"Default Title","offer_id":45014022815926,"sku":"MTL4641","price":173.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0722\/7863\/8774\/files\/MTL4641.jpg?v=1780041196","url":"https:\/\/www.plcsparehub.com\/products\/mtl4641-repeater-power-supply-eaton-4-20ma-signal-isolator","provider":"Global PLC Spare Hub","version":"1.0","type":"link"}