Eaton MTL MTL5541 Single Channel 4-20mA Current Loop Intrinsic Safety Isolator Ex ia ATEX DIN Rail 5500 Series
Price:
Negotiable
MOQ:
1
Delivery Time:
3 working days
Brand:
MTL
Product Description
Eaton MTL MTL5541 Single Channel 4-20mA Current Loop Intrinsic Safety Isolator
The MTL5541 is a high-performance 1-channel galvanically isolated barrier from Eaton's MTL5500 series, designed as a repeater power supply for 2-wire and 3-wire smart transmitters located in hazardous areas. This device provides a fully-floating DC supply to energize conventional 4-20mA transmitters while accurately repeating the current to drive a safe-area load, ensuring complete galvanic isolation between input, output, and power supply.
Model Number Decoding: MTL5541
| Code Segment | Meaning |
|---|---|
| MTL | MTL Instruments Group (now Eaton) |
| 55 | MTL5500 series - Galvanic isolators with DIN rail mounting |
| 41 | Specific configuration - Repeater power supply for 2/3-wire transmitters |
| (S suffix) | Current sink version for safe-area connection (MTL5541S) |
Key Features & Benefits
- Galvanic Isolation - No IS Earth Required: Total AC and DC isolation eliminates the need for high-integrity earth ground
- Repeater Power Supply Function: Provides floating DC supply for 2-wire or 3-wire 4-20mA transmitters in hazardous areas
- Bidirectional HART Communication: Supports full HART configuration and diagnostics of SMART transmitters
- High Transfer Accuracy: Better than 15 µA accuracy with temperature drift of <0.8µA/°C
- Fast Response Time: Settles within 10% of final value in <50 µs
- High Transmitter Drive Capability: Provides 16.5V at 20mA to power field transmitters
- Compact 16mm Width: Slim design enables high packing density on DIN rails
- Plug-in Connectors: Easy installation, maintenance, and replacement without rewiring
- LED Status Indication: Green LED provides clear visual indication of power supply status
- Global Approvals: ATEX, IECEx, FM, CSA, CCC Ex certified for worldwide use
Technical Specifications
Power Supply
| Parameter | Value |
|---|---|
| Supply Voltage | 20 to 35 V DC |
| Current Consumption (@24V, 20mA signal) | 51 mA |
| Maximum Power Dissipation (@24V, 20mA) | 0.7 W |
Hazardous Area Input (Field Side)
| Parameter | Value |
|---|---|
| Location of Transmitter | Zone 0, IIC, T4-6 hazardous area |
| Signal Range | 0 to 24 mA (including over-range) |
| Transmitter Voltage | 16.5 V at 20 mA |
| HART Communication | Supported (bidirectional) |
Safe Area Output (Control Side)
| Parameter | Value |
|---|---|
| Signal Range | 4 to 20 mA (under/over-range: 0 to 24 mA) |
| Load Resistance (@24mA) | 0 to 360 Ω |
| Load Resistance (@20mA) | 0 to 450 Ω |
| Safe-Area Circuit Output Resistance | > 1 MΩ |
Performance Characteristics
| Parameter | Value |
|---|---|
| Transfer Accuracy at 20 °C | Better than 15 µA |
| Temperature Drift | < 0.8 µA/°C |
| Response Time | Settles within 10% of final value in < 50 µs |
| Isolation (Safe/Hazardous Area) | 1500 V RMS minimum (250Vrms working) |
Certifications & Approvals
| Certification | Status | Certificate Number | Region |
|---|---|---|---|
| ATEX | Current | SGS23ATEX0019 | Europe |
| IECEx | Current | IECExBAS23.0013 | International |
| UKEX | Current | BAS23UKEX0026 | United Kingdom |
| FM (Canada) | Current | FM16CA0102X | Canada |
| FM (USA) | Current | FM16US0173X | USA |
| CCC Ex (China) | Current | 2020322316002263 | China |
Note: For Japan installations, confirm current TIIS status or select NK-approved option.
Function Description
The MTL5541 is a galvanically isolated barrier that operates as a repeater power supply for 2-wire and 3-wire 4-20mA transmitters. It provides a fully-floating DC supply to energize transmitters in hazardous areas while accurately repeating the current to drive safe-area loads, with complete galvanic isolation between input, output, and power supply.
Hazardous Area (Field Side) Safe Area (Control Side)
2/3-wire 4-20mA Transmitter ──► MTL5541 ──────────────────► 4...20mA to PLC/DCS
(Zone 0, IIC, T4-6) ──► (Galvanic isolation) ──► 0-450Ω load
──► (Repeater power supply) ──► HART Communicator
◄── (Bidirectional HART) ◄──
20-35V DC supply
[No high-integrity earth required]
Applications
| Industry | Application |
|---|---|
| Oil & Gas | Isolating pressure and temperature transmitters on offshore platforms |
| Chemical Processing | Reactor pressure/temperature monitoring in explosive atmospheres |
| Pharmaceutical | Sterile processing parameter measurement in Ex ia IIC classified areas |
| Power Generation | Boiler and turbine instrumentation isolation |
| Water/Wastewater | Pump station pressure monitoring for remote 4-20mA transmitters |
Ordering Information
| Item | Details |
|---|---|
| Part Number | MTL5541 |
| Alternative Part Number | 5720-032-003 |
| Brand | Eaton (Crouse-Hinds series MTL) |
| Product Family | MTL5500 Range - Isolated Galvanic Barriers |
| Country of Origin | United Kingdom |
| Condition | New, Original, Factory Sealed |
Similar Products
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Shenzhen Hengyo Power Technology Co., Limited
Location
Room 2407, B Block No.145 Chengshi Zhuchang Bld, Bagua 2nd Rd, Futian Dist. Shenzhen City, China 518029
Contact Person
Vivian Chan