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Product Release Sweden 14-01-2021

1 min read

Maintenance release of REB500 version 8.2 (


A new revision of Relion REB500 version 8.2 has been released. The new revision designation is

The following has been corrected/improved in the new revision:


– While monitoring the event list periodically via the front port of the central unit, the busbar protection could rarely be blocked momentarily. This has been resolved.

– Rarely a spontaneous block occurred which could only be solved by restarting both Central Unit and Bay Units. This has been resolved.


– Fixed an issue where the local display did not update anymore. Please note that the protection remained active while the display was blocked.

Recommendation to update

We recommend all users update to this release.

IED Connect support

The existing HMI500 and PCM600 IED connectivity package for REB500 version 8.2 can continue to be used.

Ordering and delivery

All new orders on the REB500 version 8.2 products will be delivered with this latest version. Existing orders will be updated to version

For current delivery time, please get in touch with our sales contact at Hitachi ABB Power Grids, Grid Automation Products.

Procedures for ordering the firmware update of the IED can be performed by the local Hitachi ABB Power Grids. If you have any questions related to this maintenance release, please contact SA-T Supportline.

Get to know more

Learn more about Protection & Control

SA-T Supportline

IED Sales & Service contacts


Patrick Cost

Global Product Manager