Description
MTL4521L: Loop-Powered Hazardous Area Controller
The MTL4521L is a loop-powered module that safely controls devices in explosive areas from your safe area. It drives intrinsically safe loads like solenoids, alarms, and LEDs without external power. Perfect for Zone 0 and Division 1 applications where simplicity and safety matter.
Technical Specifications
Brand: MTL
Model: 4521L
Input Voltage: 20-35V DC
Output Voltage: 11.1V min at 48mA, 24V max
Current Limit: 48mA minimum
Output Ripple: <0.5% peak-to-peak
Response Time: 100ms to within 10%
Hazardous Rating: Zone 0, IIC, T4-T6 / Div 1, Group A
Current Consumption: 90mA at 24V
Power Dissipation: 1.4W at 24V
Safety Parameters: Uo=25V, Io=108mA, Po=0.68W
Output Resistance: 232Ω
LED Indicator: Yellow output status
Operating Temperature: -20°C to +60°C
Storage Temperature: -40°C to +85°C
Humidity Range: 0-95% non-condensing
Termination: Screw terminals
Mounting: DIN rail or panel mount
Package Contents
1 x MTL4521L loop-powered interface unit. Fast shipping via FedEx, UPS, or DHL.
Warranty Protection
12-month warranty against defects. Quality guaranteed.
Frequently Asked Questions
- What does “loop-powered” mean?
It means the module gets its operating power from the same 20-35V DC signal used for control, needing no separate power supply. - What types of devices can it control?
It can drive solenoids, alarms, LEDs and other certified intrinsically safe loads. - How much current can it provide to field devices?
The output is current limited at 48mA minimum for safety. - Does it work with both AC and DC inputs?
It requires 20-35V DC input power for operation. - What does the yellow LED indicate?
The yellow LED lights up when the output is active and powering a field device.
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