Eaton MTL

MTL Instruments Group


MTL4850 SIL3 multiplexer

The MTL4850 HART Multiplexer offers a smaller footprint solution ideally suited to both retrofit and new project applications. Termination boards, carriers and integrated backplanes are available to enable the MTL4850 to interface to various instrumentation applications.

The MTL4850 Hart Multiplexer is now SIL3 rated for connection to instrument loops performing safety functions up to and including Safety Integrity Level SIL3. The international standard IEC 61508:2010 provides guidelines to achieving an adequate Safety Integrity Level (SIL) for systems, sub-systems and components. Functional Safety management requirements are found in IEC61508 which states that suppliers and subcontractors shall demonstrate functional safety management.

We conform to the requirements of the international standard IEC 61508:2010 for functional safety by being certified as a Functional Safety Management company.

For more information about MTL Functional Safety Management .

The MTL4850 Multiplexer offers the following benefits:

  • 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.

For product certificates please click here.

Product Code Description Downloads

intrinsically safe logo Symbol denotes that the equipment is suitable for use in hazardous area applications.
fsm logo Symbol denotes that the product has been assessed for functional safety applications

DTM Software   MTL Generic Comms DTM for all MTL HART multiplexers File
INA4850   MTL4850 range - Instructions for Safe Use Manual 
MTL4850   HART Multiplexer Datasheet  Manual 
MTL4850-TR   HART Multiplexer (Triconex) Datasheet  Manual 
SM4850   MTL4850 - Safety Manual Safety Manual