MTL-4576

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January 16, 2026
Brief: This video demonstrates the setup, operation, and key moments during typical use of the MTL 4576 HART Isolator. You will see how this single-channel, 2-wire passive isolator provides intrinsic safety and galvanic isolation for 4-20mA signals with HART communication in hazardous areas. Learn about its DIN rail mounting, ATEX/IECEx certifications, and proper wiring configuration between safe-area control systems and hazardous-area field transmitters.
Related Product Features:
  • Provides full HART digital communication transparency with no signal degradation.
  • Offers 1500V AC galvanic isolation between input, output, and ground.
  • ATEX and IECEx approved for Zone 0/1 hazardous locations with intrinsic safety.
  • Passive, loop-powered operation requires no separate power supply.
  • Compact 12.5mm width design enables high-density DIN rail installations.
  • Delivers high accuracy of ±0.1% of span for precise signal transmission.
  • Features fast response time of <1 ms for real-time process control.
  • SIL 2 capable for safety instrumented systems applications.
FAQs:
  • What is the purpose of the MTL 4576 HART Isolator?
    The MTL 4576 provides intrinsic safety, galvanic isolation, and signal conditioning for 4-20mA signals with HART communication between safe-area control systems and hazardous-area 2-wire field transmitters, protecting both equipment and personnel in Zone 0/1 hazardous locations.
  • Does the MTL 4576 require a separate power supply?
    No, the MTL 4576 is a passive, loop-powered device that operates from the 15-30V DC supply provided by the PLC/DCS system, with typical device consumption of less than 3 mA.
  • What certifications does the MTL 4576 carry for hazardous area use?
    The MTL 4576 carries ATEX and IECEx approvals for Zone 0/1 hazardous area installations with ratings for IIC gas groups and T6 temperature classification, making it suitable for international hazardous area applications.
  • How does the MTL 4576 handle HART communication signals?
    The device provides full HART signal transparency with no degradation, maintaining the 0.5-1.2V p-p signal amplitude required for reliable digital communication between HART masters and field devices.
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