{"product_id":"new-original-honeywell-mtl4544-mtl4500-series-power-rail","title":"New Original Honeywell MTL4544 MTL4500 Series Power Rail","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe Honeywell MTL4544 (MTL 4544) serves as a high-performance, 2-channel intrinsically safe repeater power supply designed for enterprise-level process automation. This 100% brand new, original unit provides regulated power to two 2-wire or 3-wire SMART transmitters located in Zone 0 hazardous areas. It repeats the 4–20 mA analog signals to safe-area monitoring equipment while maintaining transparent, bi-directional HART communication. As a critical component in Distributed Control Systems (DCS) and Safety Instrumented Systems (SIS), the MTL4544 ensures signal purity through advanced 3-port isolation, protecting the control loop from high-voltage transients and ground loop interference in volatile industrial environments.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cp\u003eThe MTL4544 leverages high-speed circuit architecture and low-power consumption to deliver superior signal fidelity.\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003ctd\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eTechnical Detail\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\u003eChannel Count\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e2-Channel (Independent)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eInput Signal\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e4–20 mA (from hazardous area)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eOutput Signal\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e4–20 mA (to safe area)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eHART Support\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eBi-directional (on terminals 1\/2 and 4\/5)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eIsolation\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e3-port (Input\/Output\/Power)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eResponse Time\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eSettles within 10% of final value in 50 µs\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003ePower Supply\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e20 to 35 V DC via Power Rail\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eCurrent Consumption\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eMax 96 mA at 24 V DC (both channels at 20 mA)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eMounting Type\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eDIN rail (via Power Rail)\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\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e17.5 mm (W) × 110 mm (H) × 120 mm (D)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eCertifications\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eATEX, IECEx, FM, CSA (Zone 0\/Div 1)\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\u003cp\u003eThe Honeywell MTL4544 solves critical instrumentation and safety challenges through precise electrical engineering:\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eOptimized Safety Integrity:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eCertified for Zone 0 and Safety Instrumented Systems (SIS), this module provides a robust barrier that prevents energy from reaching explosive atmospheres. The 3-port galvanic isolation eliminates common-mode noise, ensuring the SIS receives accurate data for emergency shutdown decisions.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eTransparent Digital Integration:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe module passes digital HART diagnostic data without attenuation. This allows maintenance teams to perform remote configuration and retrieve \"Device Health\" status from field instruments using FDT\/DTM or asset management software without visiting the hazardous field site.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSuperior Dynamic Response:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eWith a settlement time of just 50 µs, the MTL4544 tracks rapid process changes with extreme precision. This high-speed performance makes it ideal for fast-acting control loops and critical pressure monitoring where lag time can compromise safety.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eStreamlined Installation Geometry:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe compact 17.5 mm width maximizes marshalling cabinet density. By powering two independent transmitters from a single module and drawing power directly from the MTL Power Rail, the MTL4544 reduces wiring complexity and labor costs by up to 50% compared to traditional standalone isolators.\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\u003eDoes the MTL4544 support 3-wire transmitters?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. The MTL4544 provides the necessary power and signal termination for both 2-wire and 3-wire SMART transmitters, offering a versatile solution for diverse field instrumentation types.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCan I use the MTL4544 for non-HART analog transmitters?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAbsolutely. While the module supports transparent HART communication, it functions as a highly accurate standard 4–20 mA repeater for any legacy analog transmitter requiring an intrinsically safe power supply.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I identify a fault in the loop?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe MTL4544 supports line fault detection (LFD). It monitors the hazardous-area wiring for open or short circuits and communicates these fault conditions to the control system, allowing for rapid troubleshooting of field infrastructure.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eIs the module \"hot-swappable\" on the Power Rail?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. The plug-in design allows for rapid replacement without disturbing the field wiring on the DIN rail base. This \"hot-swap\" capability ensures minimal downtime during maintenance cycles in 24\/7 process operations.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":43810868166755,"sku":"MTL4544","price":320.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0583\/5246\/8067\/files\/35_fa941982-b185-4cfe-89e6-5e3494491a23.jpg?v=1776416138","url":"https:\/\/www.autocontrolglobal.com\/products\/new-original-honeywell-mtl4544-mtl4500-series-power-rail","provider":"AutoControl Global","version":"1.0","type":"link"}