Description
MTL4023: Digital Output Interface for Hazardous Areas
The MTL4023 safely controls on/off devices in explosive areas from your safe-area control system. It is perfect for driving solenoids and other loads. This module features advanced line fault detection (LFD) that monitors for wiring problems, ensuring safe and reliable operation.
Technical Specifications
- Brand: MTL
- Model: MTL4023
- Channels: 1
- Output Voltage: 25V max
- Control Input: Volt-free contact or logic signal (<1.4V ON, >4.5V OFF)
- Response Time: < 100ms
- Line Fault Detection: Open or short circuit detection
- Power Supply: 20-35V DC
- Current Consumption: 100mA @ 24V DC
- Isolation: 250V AC
- LED Indicators: Power (Green), Output (Amber), Fault (Red)
Frequently Asked Questions
Q1: What can I control with the MTL4023?
A1: You can control solenoids, valves, and other on/off devices in hazardous areas.
Q2: How does the line fault detection work?
A2: It continuously monitors field wiring and signals a fault if an open or short circuit is detected.
Q3: What types of input signals does it accept?
A3: It accepts volt-free relay contacts, open-collector transistors, or logic level signals.
Q4: Can I add earth fault detection?
A4: Yes, by connecting an optional MTL4220 earth leakage detector to terminal 6.
Q5: What do the LED indicators show?
A5: Green shows power, amber shows output active, and red indicates a line fault.
Safety Approvals
Certified for Zone 0, IIC, T4-T6 and Division 1, Group A hazardous locations.
What’s Included
One MTL4023 Digital Output Interface module.
Warranty Protection
Your purchase is covered by a 12-month warranty.
Global Shipping
We ship internationally using FedEx, UPS, and DHL for reliable delivery.











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