Area Control Module MTL5523 | MTL Instruments

MTL5523 Hazardous Area Control Module with Line Fault Detection

Core Functionality

Safe-area controlled switching for Zone 0 devices with automatic cable fault protection. Drives solenoids and alarms while monitoring wiring integrity.

Technical Specifications

Output Characteristics:
• Voltage Range: 13.6V (min) to 24V (max)
• Current Limit: 48mA minimum
• Off-State Leakage: <4V
• Ripple: <0.5% p-p

Control Input:
• Activation Threshold: <1.4V (ON), >4.5V (OFF)
• Wetting Voltage: 12V @ 0.2mA
• Compatible with: Dry contacts, open-collector transistors, logic signals

Line Fault Detection (LFD):
• Detection Range: 55Ω to 4kΩ field impedance
• Alarm Output: 35V max, 50mA capacity
• Response Time: <100ms

Power & Safety:
• Consumption: 100mA @ 24V DC
• Dissipation: 1.2W typical, 2.0W max
• Certifications: Zone 0/Div.1, IIC, T4-6, Group A
• Safety Parameters: Uo=25V, Io=147mA, Po=0.92W

Installation Notes

• DIN-rail mounting required
• Earth leakage detection via MTL4220 (Terminal 3)
• LFD triggers output shutdown on cable faults
• LED trio: Power (green), Output (yellow), Fault (red)

Industrial Applications

• Critical valve control systems
• Flameproof alarm circuits
• Emergency shutdown triggers
• Petrochemical interlock systems
• Mining equipment controls

Package Contents

• MTL5523 control module
• DIN rail mounting kit
• Installation manual

Key Advantages

• Automatic wiring fault protection
• Three-state visual diagnostics
• Compatible with earth leakage detectors
• Meets ATEX/IECEx standards
• 100ms response ensures rapid shutdowns