Eaton MTL5573 | OEM Certified Intrinsically-Safe Temperature Converter / Isolating Driver

The Eaton MTL5573 is a premium-quality module from the MTL 5000 series, designed for hazardous-area use. Its core function is to convert low-level DC signals from temperature sensors (RTDs or thermocouples) in explosive atmospheres into a secure 4–20 mA output for safe-area instrumentation.

Equipped with one channel, the MTL5573 supports:

• Thermocouple (THC) inputs: J, K, T, E, R, S, B, N or XK types down to ±3 mV span. 

• RTD inputs: 2-, 3- or 4-wire configurations (PT100, PT500, PT1000 etc.) and resistances up to 400 

Additional highlights:

• Supply voltage: 20-35 V dc. 

• Excellent common-mode rejection (>120 dB at 240 V, 50/60 Hz) and series-mode rejection (>40 dB) ensure robust signal integrity.

• The module is ATEX/IECEx approved for Zone 0, IIC hazardous-area sources, Zones 1/2 Groups A-D.

Key Features:
• One-channel intrinsic safety module converting RTD/TC inputs to 4-20 mA safe-area output.
• Support for wide sensor types (PT100, PT500, PT1000, thermocouples) with software-selectable linearisation and cold junction compensation.
• Mounts onto standard DIN-rail via MTL5500 series backplane system. 
• Compact form-factor and low power dissipation (~1.2 W at 24 V dc with 20 mA output) for efficient cabinet design.
• Certified for explosion-hazard applications: protection of sensors located in Zone 0 while providing safe-area interface.

Ideal for process-industry, petrochemical, and hazardous-area installations where temperature signals require safe-area amplification and isolation.

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