MTL4544B EATON Safe Isolator

EATON MTL4544B Product Introduction and Technical Specifications
Brand: EATON (MTL Instruments)
Model: MTL4544B
Full Product Name: MTL4544B Two-channel Repeater Power Supply Intrinsically Safe Isolator
Series: MTL4500 Series Backplane-mounted Isolators
Country of Origin: United Kingdom
HS Code Reference: 85389090 (For customs reference only; confirm classification with local customs authority before declaration)
Overall dimension: 128 mm × 22.5 mm × 118 mm
Net weight: Approximately 0.16 kg

Electrical Specifications
Module supply voltage: 24 V DC nominal, operating range 18 V DC to 30 V DC
Supported field signal: 4–20 mA analog current signal, over-range coverage 0–24 mA
HART communication: Bidirectional HART transparent transmission
Safe-area maximum load resistance: 600 ohms per channel
Intrinsically safe output voltage for field side: 15 V DC nominal
Power consumption: Max 1.8 W
Applicable hazardous zone: Zone 0, IIC, T4~T6; Class I Div 1 Group A
Operating temperature range: -20 °C to +60 °C
Storage temperature range: -40 °C to +85 °C
Relative humidity: 5% to 95%, non-condensing
Main Characteristics
Two independent galvanically isolated channels for dual transmitter signal processing;
Integrated intrinsically safe power supply for 2-wire / 3-wire 4–20 mA HART transmitters;
Full transparent HART protocol support for intelligent field instrument management;
SIL3 capability certified per IEC 61508 for safety instrumented system loops;
Plug-and-play backplane mounting design compatible with MTL4500 series standard backplanes;
Green LED power status indicator for on-site visual status check;
No on-board configuration switches required for simple commissioning;
Provides complete electrical isolation between hazardous field side and safe control side;
Conforms to ATEX, IECEx, FM, NEPSI intrinsic safety certification standards;
Built-in surge and over-limit protection circuits to improve loop stability;
Direct form-fit replacement for MTL4044 to facilitate existing plant upgrade and retrofit;
Optimized planar transformer technology delivering low power consumption and high isolation performance;
Suitable for intrinsically safe signal isolation for pressure, temperature, flow and level measurement loops in hazardous industrial environments.