Emerson

Single Channel HART Isolator MTL4541B 4-20mA

  • Manufacturer: Emerson

  • Product No.: MTL4541B

  • Product Type: Transmitter Isolator / Repeater Power Supply

  • Product Origin: USA

  • Payment: T/T

  • Weight: 1600g

  • Shipping port: Xiamen

  • Warranty: 12 months

Product Overview

MTL4541B is a single-channel intrinsically safe isolator for 2-wire or 3-wire 4–20 mA/HART transmitters in hazardous areas. It provides 16.5 V transmitter power and repeats the signal to the safe area. The “B” version is adapted for direct substitution of legacy MTL4041B modules on existing backplanes.

Key Specs

  • Channels: 1
  • Signal: 0–24 mA (4–20 mA nominal) with HART
  • Transmitter supply: 16.5 V at 20 mA
  • Safe-area load: Up to 450 Ω @ 20 mA class
  • Accuracy: ±15 µA at 20 °C class
  • Legacy compatibility: Adapted for MTL4041B substitution
  • Mounting: MTL4500 backplane

Why Choose This

  • Single-channel HART-compatible isolator
  • Powers hazardous-area transmitters
  • Direct replacement path for MTL4041B installations
  • Certified for Zone 0 / Div 1 applications

Common Questions

  • Channels? 1.
  • HART? Yes.
  • Legacy? Compatible with MTL4041B backplanes.

Mounting Steps

  1. Install the module on the compatible backplane.
  2. Wire the hazardous-area transmitter and safe-area load.
  3. Connect system power.
  4. Verify loop current and HART communication.
  5. Confirm isolation and status.

Buying Advice

  • Choose for single-channel HART transmitter isolation or MTL4041B replacement.
  • Confirm backplane and load requirements.
  • Useful spare for MTL4500 / legacy isolator positions.
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