Time-overvoltage relay and protection assemblies
The relay may also be used as an instantaneous single-phase undervoltage relay. In case of three-phase undervoltage applications using one relay only, the relay will set required undervoltage in all phases in order to operate.
Since the relay does not need a separate auxiliary DC supply, it is suitable as a replacement for electromechanical relays.
RXEDA 1 has a built in timer and a LED indication of the time-delayed trip function. A starting output can be used as an alternative to having both outputs operated after the time-delay.