Eaton MTL

MTL Instruments Group


mSA range - T

Our mSA range telecom protection devices provide protection for private wire installation (mSA units) or public switched telephone networks (mSAPN devices). mSA units are available in a variety of working voltages and in either single or dual pair versions, allowing application versatility. mSAPN devices are available in single or dual pair variants. These self-contained units are housed in an IP65 enclosure fitted with cable glands and an external earth stud, so installation is simple. Connections for the mSA units are via screw-clamp terminals, whilst the mSAPN units are supplied with IDC-type terminals for convenience.

  • Specially designed for PSTN or private wire applications
  • Ready boxed in weatherproof housing with cable glands
  • Single and dual pair versions
  • Fully auto resetting - maintenance free
  • 10 Year ‘No Fuss’ Warranty
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

mSA   Surge protection for private wire and PSTN applications Datasheet  Manual