Eaton MTL5544D 4-20mA Repeater Power Supply Isolator

Product Description

The Eaton MTL5544D is a single-channel, dual safe-area output repeater power supply isolator from the MTL5500 intrinsic safety series. It is designed for 4-20mA two-wire transmitters installed in hazardous areas, supporting HART communication. It provides galvanic isolation between hazardous field side, safe side outputs and power supply, certified for ATEX, IECEx, FM and CSA for Zone 0/1 hazardous locations. Compact DIN rail mounting enables high-density installation in control cabinets. This interface module is available as new surplus or fully tested refurbished spare parts for oil & gas, chemical and petrochemical plant safety instrumented and control systems.

Product Functions

• Supply power to 4-20mA two-wire transmitters in hazardous areas and repeat the signal to two isolated safe-area outputs
• Support bidirectional HART communication for smart transmitter configuration and diagnostics
• 3-way galvanic isolation between hazardous input, safe outputs and 24V DC power supply
• High signal transfer accuracy and fast response for stable process measurement
• Green LED power indicator for quick on-site status checking
• Intrinsic safety design to limit energy into explosive hazardous zones

Application Scenarios

• Oil & gas pipeline, compressor station and offshore platform process measurement loops
• Petrochemical and chemical plant pressure, flow, level and temperature transmitter isolation
• Refinery and pharmaceutical factory hazardous area control and safety instrumented systems
• Thermal power plant flammable gas monitoring and explosion-proof measurement cabinets
• Spare replacement and retrofit of existing MTL5500 series intrinsic safety isolation systems

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