UR Family Version 5.8x - Release Notes
1
GE
Grid Solutions
UR Family
Version 5.8x
Release Notes
GE Publication Number: GER-4648D
Copyright © 2021 GE Multilin
Overview
This document contains the release notes for firmware and software version 5.80 to 5.84 of the GE Universal
Relay (UR) family of products.
Applicable to products: B30, B90, C30, C60, C70, C95, D30, D60, F35, F60, G30, G60, L30, L60, L90, M60, N60, T35,
T60
Date of release 5.80: 2010
Date of release 5.81: 2010
Date of release 5.83: 24 April 2014
Date of release 5.84: 20 October 2021
In the following descriptions, a category letter is placed to the left of the title. See the table at the end of this
document for descriptions of the categories.
Major firmware releases can introduce new protection and control elements that can affect the device’s
Modbus memory map. Check the summary of released features to find out if it applies to a particular release.
When upgrading the firmware from versions 5.80 or 5.81 to version 5.84, the relay’s settings may
be reset to factory defaults. The relay’s settings should be saved before the upgrade and reloaded
to the relay after the firmware upgrade.
Firmware version 5.84 is not applicable to the L60 Line Phase Comparison System.