Eaton MTL4850 SIL3 HART Multiplexer

The Crouse-Hinds series MTL4850 SIL3 HART multiplexer delivers a compact,

high-performance solution for both retrofit and new project installations in

industrial automation. Its small footprint makes it ideal for space-constrained

environments, while its modular design supports flexible integration with a

wide range of instrumentation applications.

The MTL4850 interfaces seamlessly via termination boards, carriers, and

integrated backplanes, enabling efficient connectivity to smart field devices

and HART-enabled instruments. It is SIL3 rated, making it suitable for functional

safety applications and safety-related systems without disrupting analog signal

integrity.

Approved to the latest IEC61508 standards, the MTL4850 is the preferred choice

for process control, diagnostics, and instrument management in sectors such as

oil & gas, chemical processing, and pharmaceutical manufacturing.

Its robust design and proven reliability make it a trusted component in intrinsically

safe and hazardous area installations.

Certifications and compliances

• Zone 2 (mounting)

• Division 2 (mounting)

• ATEX and IECEx

• CSA, FM and FMC

• Certified for use with safety related sub-systems to IEC61508

• SIL3 certified

• Operating temperature range: -40°C to +70°C

• Non-operating temperature range: -40°C to +85°C

Design features of our SIL3 rated HART multiplexer for process safety

• The module has a compact self-contained structure which enables optimized

and repeatable performance due to fixed capacity, 32 channels, per module

• Channel-to-channel isolation

• Isolated power supply

• Auto baud-rate detection

• LED indication for fault diagnosis

• Supports HART Rev. 5-7 devices

• SIL3 certified for connection to safety loop

• Onboard event log

• ATEX, FM and CSA certification