Eaton / MTL4000 Backplane Isolators
Eaton MTL4073 Temperature Converter
Single-channel configurable thermocouple and RTD temperature converter with 4-20 mA output.
Product Overview
Backplane-mounted temperature conversion for thermocouple and RTD inputs
Eaton MTL4073 accepts thermocouple or RTD inputs. The official electrical ranges are -75 to +75 mV for thermocouple/millivolt operation and 0-400 ohms for resistance input, with a 4-20 mA output.
The module is discontinued. Eaton identifies MTL4573 as the official replacement.
Official Eaton MTL4073 temperature converter connection diagram.
Product Functions
Configurable thermocouple and RTD measurement
Thermocouple input
The input accepts -75 to +75 mV for thermocouple and mV measurement.
RTD measurement
Resistance inputs cover 0-400 ohms with 2-, 3- or 4-wire connection.
4-20 mA output
The converted temperature value is retransmitted as a standard current signal.
Configurable setup
Eaton documentation identifies configuration through the PCS45/PCL45 tools.
Product Specifications
Official identification and technical data
| Brand | Eaton |
|---|---|
| Model | MTL4073 |
| Channels | 1 |
| Input types | Thermocouple or RTD |
| Millivolt range | -75 to +75 mV |
| Resistance range | 0-400 ohms |
| RTD connection | 2-, 3- or 4-wire |
| Output | 4-20 mA |
| Maximum load | 600 ohms |
| Power supply | 20-35 Vdc |
| Current consumption | 57 mA at 24 V; 55 mA at 20 V; 60 mA at 35 V |
| Power consumption | 1.2 W at 24 V |
| Isolation | 250 Vac |
Replacement Information
Official migration to MTL4573
Discontinued model
MTL4073 is listed in Eaton discontinued product support.
Named replacement
The official cross-reference identifies MTL4573.
FAQ
Eaton MTL4073 technical questions
Which sensors can MTL4073 accept?
It accepts thermocouple and RTD inputs.
What are the official input ranges?
-75 to +75 mV or 0-400 ohms, depending on configuration.
What output does it provide?
A 4-20 mA output with up to 600 ohms load.
Is MTL4073 discontinued?
Yes. Eaton lists it as discontinued.
What is the replacement for MTL4073?
Eaton identifies MTL4573.
Recommended Products
Additional industrial automation models
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