Description
MTL4045C Isolator: Reliable Signal Transfer for Hazardous Areas
The MTL4045C takes a 4-20mA control signal and safely drives devices like I/P converters in hazardous areas. It has strong output power and detects broken wires in your field wiring.
Technical Specifications
Brand & Model: MTL MTL4045C Signal Isolator
Input/Output Signal: 4-20mA
Load Capacity: Up to 800Ω
Output Voltage: 16V at 20mA
Input Voltage Drop: 4V at 20mA
Accuracy: Better than 20μA
Response Time: < 100ms
Power Supply: 20-35V DC
Power Consumption: 50mA at 24V
Isolation: 250V AC
Operating Temperature: -20°C to +70°C
Open Circuit Detection: Yes (input >47kΩ)
Simple Connection
Connect your controller’s 4-20mA output to the input terminals. Connect your field device to the output terminals. The MTL4045C provides safe isolation and drives your device.
Frequently Asked Questions
Q1: What is an I/P converter?
A1: It converts an electrical current signal (I) into a pneumatic pressure signal (P) to control valves.
Q2: How does it detect wiring problems?
A2: It monitors the input resistance. Very high resistance means a broken wire.
Q3: Can it drive other devices besides I/P converters?
A3: Yes, it can drive any device that uses a 4-20mA signal, like indicators or recorders.
Q4: What is the advantage of low voltage drop?
A4: It means more voltage is available for your field device, ensuring better performance.
Q5: Does it support HART communication?
A5: No, the MTL4045C is for analog signals only. For HART, consider the MTL4546 series.
Shipping & Package
Includes one MTL4045C unit. We ship worldwide using FedEx, UPS, and DHL.
Your Guarantee
This product comes with a 12-month warranty for quality assurance.











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