MTL4546C HART Signal Isolator – Zone 0 Certified 4-20mA

MTL4546C: Safe Signal Conversion for Hazardous Areas

Technical Specifications

• Model: MTL4546C (open-circuit detection only)
• Input Range: 4-20mA (1mA under, 24mA over range)
• Load Capacity: 90Ω to 800Ω
• Accuracy: ±20μA at 20°C
• Response Time: <100ms
• Power Consumption: 35mA at 24V
• Safety Ratings: Uo=28V, Io=93mA, Po=651mW

Safety & Compliance

• Certified for Zone 0, IIC T4-T6
• Approved for Div. 1, Group A locations
• Low ripple: <40μA peak-to-peak

Package & Support

• Warranty: 12 months
• Shipping: FedEx, UPS, DHL available
• Delivery: Usually ships within 2 business days

5 Expert Questions Answered

• Q: Does the MTL4546C detect short circuits?
  A: No, it only detects open circuits.
• Q: What’s the maximum cable length?
  A: Depends on resistance – keep under 800Ω total.
• Q: Can I use it with non-HART devices?
  A: Yes, works with standard 4-20mA signals too.
• Q: Is the LED visible in dark areas?
  A: Yes, the green power LED is bright.
• Q: What’s the operating temperature range?
  A: Standard industrial range (-20°C to +60°C).