Digital protection relays and control

Protection relay with control functions : SIPROTEC 5


SIPROTEC 5 is part of the new generation of incomparable modular, flexible, and intelligent digital field devices. With modularly designed hardware and software and its high-performance DIGSI 5 engineering tool, the SIPROTEC 5 product family of field devices are perfect for protection, control, monitoring, and measuring applications in electrical energy systems. SIPROTEC 5 offers a wide product range with modular elements for every application and requirement.

Find the right SIPROTEC and Reyrolle protection relay and control device!

Easy Protection Device Selector

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Relay Take-Back Scheme

Do you have an old relay that needs upgrading? Would you prefer it was recycled rather than going to a landfill? Find out how you can get up-to 50% off any SIPROTEC 5 and Reyrolle protection relays. We will recycle your old relay for you even if it isn’t a Siemens brand!

SIPROTEC 5 Portfolio

Protection Relay: SIPROTEC 5 new versions

SIPROTEC 5 – New version V8.3 and V8.4

The new version expands the use of SIPROTEC 5 devices in the areas of user-friendliness, communication, safety and security and industrial application.


Some of the highlights:

  • Distributed busbar protection for up to 45 bays
  • Power Quality Basic functions
  • Favorite settings and filtering of routing information
  • Automated IEC 61850 engineering with typicals
  • Measuring point disconnection
  • Dynamic voltage regulation (DVR)
  • Virtual network segregation (VLAN)
  • Profinet IO with S2 redundancy
  • Merging unit: 2 sampled values streams per module
  • IEEE C37.118 PMU
  • Authenticated network access IEEE 802.1X
Protection Relay and Control Device Selector -ANSI- Easy and Online

Easy Protection Device Selector

This tool gives a quick guidance to find a protection relay and control devices of SIPROTEC 5, SIPROTEC 4, SIPROTEC Compact, Reyrolle which would fit your needs.




SIPROTEC 5 Protection and Control Applications

Tutorials all about the features, functions, and applications of SIPROTEC 5 protection relays and controls

Dr. Thomas Liebach explains the expansion of SIPROTEC 5 devices.

SIPROTEC 5 presented by Manfred Unterweger.

Udo Faubel explains the SIPROTEC 5 configurator:

SIPROTEC 5 System Features