the Undervoltage Release Provides Automatic Circuit Breaker Tripping When Thereis A Power Loss Or Major Dip (to 35%-70% Of Rated Voltage) In Accessory Controlvoltage. Ac Devices Are Ul Listed For 50-60 Hz. Product Number Sauv1 May Be Usedwith Time Delay Unit Spuvtd ) (delay 0.1 To 1.0 Seconds), 120 Vac Input, 125 Vdc Output.
The undervoltage release is an electronic module used to open the circuit breaker when the monitored voltage drops below 35-60PERC of its rated value. The undervoltage release "resets" when the monitored voltage is re-established allowing the circuit breaker to reclose (the sealing voltage of the UVR is 60-85PERC of its rated voltage). An undervoltage release trip operation is produced by the MicroVersaTrip Plus unit in response to a signal from the undervoltage release module. This allows the trip unit to record, display, distinguish an d comm un icate (in MicroVer saTri p PM trip units) that the breaker opening event was due to undervoltage release. Operation of the undervoltage release module will prevent breaker contact closure, i.e. "kiss-free" operation. When energized, the undervoltage release supplies +24 Vdc power to the trip unit to power the display. Field installable.