Eaton / MTL4500 Backplane-Mounted Isolators
Eaton MTL4575 Temperature Converter
One-channel temperature converter for thermocouple, millivolt and 2-, 3- or 4-wire RTD inputs with a 4-20 mA output.
Product Overview
Configurable temperature conversion for MTL backplanes
Eaton MTL4575 accepts thermocouple, millivolt and resistance-temperature-detector inputs and converts the selected measurement to a 4-20 mA output. RTD connections support 2-, 3- and 4-wire arrangements.
Configuration includes the sensor type, range and cold-junction-compensation mode. The module is designed for MTL4500 backplane mounting and provides LED status indication.
Official Eaton MTL4575 temperature converter connection diagram.
Product Specifications
Official identification and technical data
| Brand | Eaton |
|---|---|
| Model | MTL4575 |
| Channels | 1 |
| Input types | Thermocouple, millivolt, RTD (2-, 3- or 4-wire) |
| Millivolt input range | -75 to +75 mV |
| Output | 4-20 mA |
| Maximum output load | 600 ohms |
| Power supply | 20-35 Vdc |
| Power consumption | 1.2 W |
| Current consumption | 50 mA |
| Default response time | 500 ms |
| Operating temperature | -20 to +60 °C |
| Storage temperature | -40 to +80 °C |
| Dimensions | 104.8 x 121.8 x 15.8 mm |
| Weight | 140 g |
| Indicators | Green power LED; yellow status LED |
Operating Functions
Sensor conversion and configuration
Multiple sensor inputs
The channel accepts thermocouple, mV and RTD measurement inputs.
RTD wiring support
Two-, three- and four-wire RTD connections are supported.
Cold-junction compensation
Thermocouple operation provides automatic or selectable cold-junction compensation.
4-20 mA retransmission
The configured measurement is converted to a standard 4-20 mA output.
Installation Highlights
Backplane integration and channel commissioning
MTL4500 mounting
The slim module installs on an MTL4500 system backplane.
Configuration check
Confirm the selected sensor type, wiring method, measurement range and output load before commissioning.
FAQ
Eaton MTL4575 technical questions
How many channels does MTL4575 provide?
MTL4575 is a single-channel temperature converter.
Which input sensors can MTL4575 accept?
It accepts thermocouple, millivolt and 2-, 3- or 4-wire RTD inputs.
What is the output signal?
The configured process value is provided as a 4-20 mA output.
What supply is required?
The official specification states 20-35 Vdc.
What is the maximum output load?
The output load is specified up to 600 ohms.
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