The SIPROTEC 4 Series goes to end-of-line on 30 September 2024. From then, no more orders will be accepted at the factory. If you want to order full relays to hold as spares, now is your time to get ordering. (Some products such as 7SS52 Bus Protection Relay have already been obsoleted.)

The good news is that SIPROTEC 5 covers all the SIPROTEC 4 applications. The setting migration tools allowing makes upgrading a lot easier.

Siemens have announced that SIPROTEC Compact 7SJ80, 7SJ81, 7SK80, 7SK81 and 7RW80 will be phased out, with the products available up to 30 September 2026.

The 7SD82 (SIPROTEC 4 Compact Line Differential Relay) remains available.

In place of the 7SJ80, we recommend the SIPROTEC 5 Compact Universal 7SX800. It’s the same size and covers the same functions. It's an upgraded relay using DIGSI 5 rather than DIGSI 4. See more information on the SIPROTEC 5 7SX800.

In place of the 7SJ81, we recommend the 7SY82 SIPROTEC 5 relay. The 7SY82 is twice the width of the 7SJ81, but is compliant with the existing LPIT standards, with software selection between air cored (Rogowski sensors) and LPCT iron cored sensors. See more information on the SIPROTEC 5 7SY82.

Pilot wire communication converter
Siemens 7XV5662-0AC00 is an extremely valuable device that allows numerical SIPROTEC 4 and SIPROTEC 5 Line Differential Protection relays to communicate over copper pilot wires.

Due to shortages of components, Siemens have announced in 2022 the phase-out of the 7XV5662-0AC00 and its replacement with the 7XV5662-0AC02. The new device is in the same enclosure and has the same DIP switch settings, but with an entirely new internal PCB design.

The limitation is that you can only use a 7XV5662-0AC00 with a 7XV5662-0AC00 and a 7XV5662-0AC02with a 7XV5662-0AC02. You can not mix the two - otherwise they are 'equivalent'. Please contact us when using this in a system that has a SIPROTEC 4 device connecting to a SIPROTEC 5 device, as there are some more factors to consider.

SIPROTEC 5 units with CP200

In 2021 Siemens after 10 years from release announced the end-of-support for SIPROTEC Modular units with CP200. The very early SIPROTEC 5 units used a CPU designated as type ‘CP200’. Relays using CP200 can use firmware up to v7.80 and DIGSI 5 versions up to v7.80.

While DIGSI software often supports earlier firmware and device driver versions, DIGSI 5 versions above V7.80 will not support CP200 devices.

Some of the projects for those earlier relays may have been created with DIGSI V6.20 or earlier. To upgrade these to V7.8 (or higher for non CP200 devices), you must first upgrade them using an intermediate version of DIGSI of between V7.00 and V7.50.

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