MTL5523 Hazardous Area Driver | Solenoid Control Interface

MTL5523 Hazardous Area Driver: Solenoid Control with Advanced Line Protection

Safe Zone-to-Hazardous Area Control

The MTL5523 safely operates hazardous-area devices from safe-zone signals. This interface drives solenoids and other loads with built-in line fault detection and earth leakage monitoring.

Technical Specifications

• Brand: MTL
• Model: 5523 Series
• Output Voltage: 13.6-24V DC
• Current Limit: 48mA minimum
• Response Time: <100ms
• Control Input: 1.4V (ON) / 4.5V (OFF)
• Power Consumption: 100mA @24V
• Ripple: <0.5% peak-to-peak
• LFD Range: 55Ω – 4kΩ impedance
• Temp Range: -25°C to +80°C

Terminal Functions

• 1: Control input +
• 2: Control input –
• 3: Earth leakage detection
• 4: Hazardous output +
• 5: Hazardous output –
• 6: LFD signal output

Visual Status System

• Green LED: Power active
• Yellow LED: Output energized
• Red LED: Line fault detected

Configuration Notes

• Connect MTL4220 to terminal 3 for earth monitoring
• Use volt-free contacts or logic signals (1-30V)
• Maintain field impedance between 55Ω-4kΩ
• Ensure output ripple remains below 0.5%

Safety Certifications

• ATEX/IECEx Zone 0, IIC, T4-T6
• Division 1, Group A compliant
• Um = 253V AC/DC isolation

Package & Support

• Includes: MTL5523 unit, installation guide
• Warranty: 12-month full coverage
• Shipping: Worldwide via FedEx/UPS/DHL

Expert Questions Answered

• Q: Minimum load impedance?
  A: Maintain >55Ω for proper LFD operation
• Q: Earth leakage monitoring?
  A: Requires MTL4220 at terminal 3
• Q: Control signal options?
  A: Accepts dry contacts or 1-30V logic
• Q: Maximum cable length?
  A: Limited by 4kΩ impedance threshold
• Q: Solid-state switch rating?
  A: 50mA @ 35V maximum