Description
MTL4787+ Safety Barrier: Dual Channel Protection for Control Signals
The MTL4787+ is a twin-channel safety barrier designed for controller outputs and 4/20mA transmitters. It provides safe operation for devices in hazardous areas with Schottky diode return protection.
Technical Specifications
Brand & Model: MTL MTL4787+ Safety Barrier
Channels: 2 independent channels (1 & 3, 2 & 4)
Safety Rating: 28V, 300Ω, 93mA
Polarity: Positive
Max Resistance: 330Ω (ch 1&3), 0.9V+22Ω (ch 2&4)
Working Voltage: 26.3V at 10μA
Max Voltage: 27.0V
Fuse Rating: 50mA per channel
Power Rating: 0.65W matched power
Operating Temperature: -20°C to +60°C
Certification: BASEEFA IIC, FM Groups A & B
Easy Installation
Connect your controller outputs or transmitters to the safe side. Connect your field devices to the hazardous side. The MTL4787+ provides essential protection with Schottky diode safety.
Frequently Asked Questions
Q1: What is Schottky diode return?
A1: It’s a safety feature that uses special diodes for better circuit protection.
Q2: What devices can I connect?
A2: It works with 4/20mA transmitters, switches, solenoid valves, alarms, and LEDs.
Q3: How many devices can I protect?
A3: You can protect two field devices with one MTL4787+ unit.
Q4: What is bussed power?
A4: It means the barrier can use a shared power supply if your system has one available.
Q5: Is this barrier fused?
A5: Yes, each channel has 50mA fuse protection for safety.
Shipping & Package
Includes one MTL4787+ 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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