Transfers 4–20 mA with accuracy better than 15 µA.
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Product Overview
MTL5541 is a one-channel Eaton Crouse-Hinds series MTL5500 repeater power supply for 2- or 3-wire transmitters.
It powers the hazardous-area transmitter and transfers a 4–20 mA signal to a safe-area load. HART communication is supported on terminals 1 and 2.
The module is intended for hazardous/classified-location interface service and mounts on 35 mm T-section DIN rail.
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Performance
Settles to within 10% of final value within 50 µs.
Supports 0 to 360 Ω load at 24 mA or 0 to 450 Ω at 20 mA.
Maintains ripple below 50 µA peak-to-peak.
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Technical Details
Manufacturer
Eaton Crouse-Hinds series MTL
Exact model
MTL5541
Channels
1
Field device
2- or 3-wire transmitter
Signal range
4–20 mA
HART
Supported on terminals 1 and 2
Supply
20 to 35 V DC
Current consumption
51 mA at 24 V
Power dissipation
0.7 W at 24 V
Load resistance
0–360 Ω at 24 mA; 0–450 Ω at 20 mA
Transfer accuracy
Better than 15 µA
Galvanic isolation
250 V rms, safe-area circuits to supply
Operating temperature
−20 to +60 °C
Dimensions
15.8 × 118.8 × 109.8 mm
Functional safety
SIL 2 and SIL 3 capability per IEC 61508
About IndustryParts
https://www.industryparts.com/HART path and analogue load remain visible
IndustryParts prepares MTL5541 enquiries with the transmitter wiring, loop resistance and safety documentation aligned.
2/3-wire input checked
HART terminals identified
Loop load calculated
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System Integration
Confirm whether the field transmitter is 2-wire or 3-wire and document its intrinsic-safety entity parameters.
Use terminals 1 and 2 for a HART-enabled loop and keep the approved loop impedance.
Segregate hazardous- and safe-area connectors and preserve their tags during replacement.
Inject loop current and verify analogue scaling, HART communication and fault behavior.
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Applications
Powering a hazardous-area 2-wire 4–20 mA transmitter.
Interfacing a compatible 3-wire transmitter to a safe-area analogue input.
Maintaining HART communication through an intrinsically safe interface.
Safety-related analogue input service within the approved design and assessment.
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FAQ
Q01Which HART wiring detail is specific to MTL5541?
HART communication is specified on terminals 1 and 2, so the loop must be landed and loaded accordingly.
Q02How should safe-area load be checked for MTL5541?
Calculate the full loop resistance at maximum current and keep it within the 360 Ω at 24 mA or 450 Ω at 20 mA limits.
Q03What field-device evidence should accompany an MTL5541 enquiry?
Provide transmitter type, 2- or 3-wire wiring, entity parameters, loop current, HART use, load and area classification.
Q04Can MTL5541A be treated as the same unit as MTL5541?
No. The A suffix identifies a different passive-input current-repeater execution; match the complete catalog number.
Q05What proves MTL5541 is ready after replacement?
Verify loop power, current scaling, HART access where used, safe-area load, diagnostics and the plant proof test.
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