MTL5021 Hazardous Area Driver - MTL Instruments

MTL5021 Hazardous Area Control Driver

The MTL5021 from MTL Instruments provides safe control of hazardous area devices from safe area switches. This single-channel interface drives intrinsically safe low-power loads and non-energy-storing apparatus like LEDs. Its flexible input/output isolation allows control switch connection on either side of the 24V DC supply circuit.

Key Technical Specifications

• Brand: MTL Instruments
• Model: MTL5021
• Product Type: Hazardous Area Control Driver
• Channels: One channel
• Output Current: 45mA maximum
• Input Voltage: 20 to 35V DC
• Status Indicator: Yellow LED for operational status

Hazardous Area Certification

• Load Location: Zone 0, IIC, T4-T6 hazardous area
• Division Rating: Division 1, Group A hazardous location
• The MTL5021 maintains intrinsic safety for connected loads
• It enables safe control of devices in explosive atmospheres

Output Performance

• Minimum Output Voltage: 12.85V at 45mA
• Maximum Output Voltage: 24V from 170Ω
• Current Limit: 45mA maximum for safety
• Output Terminals: Terminal 1 (Output –ve), Terminal 2 (Output +ve)
• Suitable for intrinsically safe low-power loads and LED indicators

Power Requirements

• Input Voltage: 20 to 35V DC operating range
• Current Consumption: 90mA at 24V with 45mA output
• Power Dissipation: 1.4W at 24V typical
• Maximum Dissipation: 1.8W at 35V
• Supply Terminals: Terminal 11 (Supply –ve), Terminal 12 (Supply +ve)

Terminal Configuration

• Output: Terminal 1 (Output –ve), Terminal 2 (Output +ve)
• Earth Leakage: Terminal 3 for detection capability
• Power Supply: Terminal 11 (Supply –ve), Terminal 12 (Supply +ve)
• Flexible wiring allows control switch on either supply side
• Clear terminal identification simplifies installation

Safety Parameters

• Safety Voltage: 25V maximum
• Internal Resistance: 170Ω
• Safety Current: 147mA maximum
• Isolation Voltage: Um = 250V rms or DC
• Comprehensive protection for hazardous area operation

Frequently Asked Questions

• What type of loads can the MTL5021 drive?
  It drives intrinsically safe low-power loads and non-energy-storing apparatus like LEDs.
• What is the maximum output current?
  The output is current limited to 45mA for safety compliance.
• How flexible is the control switch wiring?
  The switch can be connected into either side of the 24V DC supply circuit.
• Is this suitable for Zone 0 applications?
  Yes, it carries full certification for Zone 0, IIC, T4-T6 hazardous areas.