What Is the MTL5500 Range?
The MTL5500 series (by MTL Instruments, now under Eaton/FSM) comprises DIN-rail mounted safety barrier modules engineered to provide intrinsic safety (IS) for signal and power interfacing between hazardous and safe zones in industrial installations
Key Features & Benefits
Intrinsic Safety & 3-Port Isolation
These modules ensure galvanic separation between hazardous-area inputs, safe-area outputs, and power supplies, reducing ignition risks
Compact & High-Density Design
With a slim profile (~16 mm width), they maximize module density and allow efficient use of wiring and panel space
DIN-Rail Mounted
Enables quick installation and removal, with colored, keyed connectors—hazardous-area (blue) and safe-area (grey)—to streamline wiring
Functional Safety Certified
Select models are assessed under the Functional Safety Management (FSM) framework and support Safety Integrity Level (SIL) up to SIL 3 in simplex system architectures
Modular Scalability
Offers a comprehensive range of signal interface modules—including analog, digital input/output, RTD/TC isolators—each tailored to specific application needs
Summary
The MTL5500 range is a modern, high-density lineup of intrinsic safety interface modules—ideal for hazardous-environment instrumentation. Key advantages include:
Maximized safety via intrinsic isolation
Efficient panel design with compact DIN-rail modules
Flexibility to match various signal types and safety requirements
Functional safety compatibility up to SIL 3