Monitoring relay
FANOX ELECTRONIC
U3S
* Protects three-phase installations against voltage variations between phases, incorrect sequence of phases and phase loss
* Minimum and maximum thresholds adjustable (two potentiometers)
* Tripping time delay adjustable (one potentiometer)
* Model U3S-420 is valid for 400 and 440 nominal V
U3P:
* Suitable to protect three-phase installations against variations in main voltage. Sensitive to incorrect phase sequence. Applicable in generators
* Maximum and minimum thresholds can be adjusted separately
* Two independent output relays
* Reset time delay adjustable
U3N:
* Suitable to protect three-phase with neutral installations against variations in main voltage and loss of neutral. Sensitive to incorrect phase sequence. Applicable in generators
* Maximum and minimum thresholds can be adjusted separately
* Two independent output relays
* Reset time delay adjustable
* Monitors neutral
