Over/Undervoltage - Adjustable Time Delay on PICK-UP & Drop-OUT 
208-240V VAKPU Series
Over/Under Voltage Relays provide protection to equipment where an over or under
voltage condition is potentially damaging. They are designed to operate when
the operating voltage reaches a preset value and drop-out when the operating
voltage drops to a level below the preset value.
The VAKPU can be used to
monitor any 208, 220 or 240V
AC single phase voltage.
The pick-up voltage setting is
user-adjustable from 85-115%
of the nominal voltage setting.
The drop-out setting is adjustable
from 80-95% of the pickup
setting. The relay energizes
when the monitored voltage is above the pick-up setting for a period longer than
the adjustable pick-up time delay (t1) of 0.1-10 seconds. The relay de-energizes
when the monitored voltage is below the drop-out setting for a period longer than
the drop-out time delay (t2), which is adjustable from 0.1-10 seconds. The pick-up
time (t1) and drop-out time (t2) are independently adjustable.
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