REX615 protection and control relays do not require any specific periodical maintenance when installed and operated according to the manufacturer’s instructions and within the specified environmental conditions. The relays shall be kept clean and free of dust and yearly visual check of installation’s condition is recommended. Retightening of relay’s screw type terminals is recommended after the first three to six months in use.
As a part of our quality assurance process, we constantly analyze the data from the installed base. In case a systematic anomality would be identified, we will take specific actions. The actions are highly dependent on the nature of the anomality and could include targeted maintenance advice for a dedicated relay batch, or it could be more general advisory based on the years of relay in operation.
As a part of our products’ lifecycle support activities, we publish firmware updates offering functionality enhancements for the delivered units. The REX615 users are encouraged to visit the REX615 product page to check the latest firmware updates. Each firmware update includes a release note, describing the content, and a link that can be used to download the actual firmware package. Relay specific REX615 serial number is required for downloading. Depending on the firmware patch content and the evaluated criticality of it, the relay update can be performed soonest or as mostly done, during the periodical testing of the relay. Updating the relay firmware with a patch does not itself require relay retesting.