MTL4549Y

Product Description

Home / Intrinsic Safety / MTL / MTL4549Y Need MTL MTL4549Y? Intrinsically safe isolating driver for Intrinsic safety driving of valves and I/P converters. Supplied with full traceability and... Price & Availability Classified as an intrinsically safe isolating driver, it is positioned as a direct replacement and service part for existing installations. It is intended for use within Intrinsic safety driving of valves and I/P converters, where dependable operation and a precise fit are essential to keeping the plant running. Listed as Active, it is offered as a maintained and verified spare that supports the continued operation of the installed base. Key technical specifications include: The Function is 2-channel isolating driver. Its Channels is rated at 2. For reference, the Max load resistance is 800 ohm at 16 V / 20 mA. The HART bandwidth is 500 Hz - 10 kHz. Its Fault detection is rated at Open-circuit only (OC-LFD). For reference, the Supply is 20-35 V DC via Power Rail. The Hazardous area is Zone 0, IIC, T4-T6. Its Approvals is rated at ATEX, IECEx, FM, CSA. Notable features of this unit: 2-channel isolating driver for 4-20 mA field loads. Drives smart I/P converters and HART valve positioners. Open-circuit line fault detection (OC-LFD) only. Typical applications include Petrochemical and gas plants, Safety-instrumented valve loops, Hazardous-area actuator driving. It is compatible with or cross-references MTL4500 Power Rail and backplane, HART valve positioners and I/P converters. Equivalent / cross-reference designation: ATEX, IECEx, FM, CSA; Zone 0, IIC, T4-T6. Within industrial automation and process-control environments, components of this type are relied upon to keep critical equipment operating safely and efficiently. They are typically specified where uptime, repeatability and a predictable maintenance cycle matter more than upfront cost. A intrinsically safe isolating driver such as this one forms part of a larger machine or system, so correct identification and fitment directly affect the performance and safety of the whole installation. MTL Instruments parts are widely used across power generation, manufacturing, oil and gas, water and process industries, where engineering teams standardise on proven series to simplify spares planning. When selecting a replacement, confirm the exact model designation and verify that the mechanical and electrical interface matches the unit currently installed. Cross-checking the order code, mounting style and connection type against the existing device helps avoid compatibility issues and unplanned downtime during a maintenance window. Where several variants exist, the suffix often defines voltage, range or firmware, so it should be matched precisely rather than approximated. This item is offered from our active stock of current and discontinued industrial parts. Each listing is verified against the manufacturer designation before shipment so you receive the correct part for your application. Availability and lead time vary by item; our team can confirm the fastest option for your required quantity and provide a formal quotation on request. Common questions: Regarding "What does the MTL4549Y drive": Smart I/P converters and HART valve positioners in Zone 0. Regarding "What fault detection does it have": Open-circuit detection only (OC-LFD); it does not detect short circuits. Please contact us to confirm current pricing, availability and delivery for your required quantity; volume and project pricing are available on request. The MTL Instruments MTL4549Y is an intrinsically safe isolating driver. Basic Product Information Drives smart I/P converters and HART valve positioners Transparent bi-directional HART (500 Hz-10 kHz) Open-circuit line fault detection (OC-LFD) only 2-channel isolating driver for 4-20 mA field loads Technical Specifications Version & Model Difference ['MTL4549Y has OC-LFD only (no short-circuit detection)', 'MTL4549 adds short-circuit detection', 'MTL5549Y is the DIN-rail MTL5500 version'] Application Scenarios Petrochemical and gas plants Safety-instrumented valve loops Hazardous-area actuator driving What fault detection does it have? Open-circuit detection only (OC-LFD); it does not detect short circuits. Yes, transparent bi-directional HART across 500 Hz to 10 kHz. On the MTL4500 backplane via the Power Rail. What does the MTL4549Y drive? Smart I/P converters and HART valve positioners in Zone 0. MTL MTL4544 Signal Isolator MTL 5546Y Analog Output Isolator MTL Instruments MTL5511 Switch / Proximity Detector Interface