3-phase or 3-phase+neutral
line voltage monitoring relay
for phase sequence, phase
loss, asymmetry, over and
under voltage (separately
adjustable set points) with
built-in time delay function.
Supply ranges from 208 to
690 VAC covered by three
multivoltage relays (ranges
over 415 VAC only on the
DIN-rail housing).
This supervising relay is very often in use to supervise the supply voltage from the E-Motors for hydraulic pump from Ship rudders.
This relay can replace the no longer available type XU2-AC from Woodward.