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Firmware update releases from ELDS/DA

Firmware updates represent an integral part of ABB’s life cycle management of distribution protection and control relays. The updates ensure optimized usability throughout the relay’s entire life cycle by offering the latest improvements. The ideal time for a firmware update would be during periodical testing or a maintenance break.
Relion® REX640

2020, Mar. Firmware update release 1.0.4 for REX640
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