MTL5081 Thermocouple Isolator – Precision Hazardous Area Signal Converter
Safe Temperature Monitoring
The MTL5081 safely isolates millivolt signals from Zone 0/Div.1 hazardous areas. Perfect for thermocouples with burnout protection and cold junction compensation.
Key Specifications
- Brand: MTL | Model: 5081 (Full code: MTL5081-EX-TC)
- Signal Range: ±50mV (±55mV overload)
- Accuracy: ±5µV or 0.05% (whichever is greater)
- Response Time: 150µs (typical)
- Frequency Response: DC to 4kHz
- Burnout Protection: Upscale/downscale selectable
- Isolation: 250V AC
- Power: 20-35V DC (20mA max)
Unique Features
- Top-Mounted Switches:
- Safety drive enable/disable
- Upscale/downscale selection
- External CJC Support: For accurate thermocouple readings
- Green LED: Clear power indication
5 Installation FAQs
- What thermocouple types are supported?
All types (K,J,T etc.) with external CJC. - How to set burnout protection?
Use top switches to select direction. - Can I use with RTDs?
No, designed for mV signals only. - What’s the max cable length?
Up to 100m with shielded cable. - Is calibration needed?
No, factory calibrated for high accuracy.
Package Contents
- 1x MTL5081 isolator
- Installation guide
- DIN-rail mounting hardware
- 12-month performance warranty
- Worldwide delivery via FedEx/UPS/DHL










Stephanie Hayes –
This MTL5081 isolator was new and delivered faster than any other supplier. Their service was expert and helpful. We used it to isolate signals from sensors in a hazardous area of our chemical plant, ensuring safe and reliable operation. Impressive.