Fixed at 110% of nominal voltage. Unit trips when the average of all three lines is greater than the fixed set point for a period longer than the time delay drop-out.
Phase Loss
Unit trips on loss of any Phase A, B or C
Phase Reversal
Unit trips if rotation (sequence) of the three phases is anything other than A-B-C
Phase Unbalance
Adjustable from 2 - 10% unbalance. Unit trips when any one of the three lines deviates from the average of all three lines by more than the adjusted set point . There is also a 'Disable' setting adjustment that will turn off the Phase Unbalance Protection if nuisance tripping is a problem.
Reset
As standard, reset is automatic upon correction of fault. When a momentary-contact N.C. switch is wired across the Manual Reset terminals (5 & 6), the unit switches to manual reset mode and remote manual reset is available.
Response Times
See Datasheet
Temperature
-28° to 65°C (-20° to 150°F)
Transient Protection
n/a
Undervoltage
Adjustable from 80-95% of nominal voltage. Unit trips when the average of all three lines is less than the adjusted set point for a period longer than the adjustable time delay drop-out.
