Over/Under Voltage Relays provide protection to equipment where either 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 pick-up voltage setting is user-adjustable from 85-115% of the nominal voltage rating. As standard, the VMP Series has a drop-out voltage setting fixed at 95% of the pick-up voltage setting. An adjustable drop-out setting of 75-95% of the pick-up setting is available on the VMKP Series. The relay energizes when the monitored voltage is above the pick-up setting. The relay de-energizes when the monitored voltage is below the drop-out setting for a period longer than the drop-out time delay (T), which is a fixed 500ms for VM Series products. A version with an adjustable time delay on drop-out of 0.5-10 seconds is available (see VA Series).
RELAY, VOLTAGE SENSING, DPDT, 120VAC; Product Range:VM Series; Contact Configuration:DPDT; Contact Current:10A; Relay Mounting:Socket; Contact Voltage VAC:240VAC; Relay Terminals:Quick Connect; Contact Voltage VDC:30VDC RoHS Compliant: Yes
| Macromatic Industrial Controls, Inc. | Newark, An Avnet Company | |
|---|---|---|
| Product Category | Protective Relays and Monitoring Relays | Electromechanical Relays |
| Product Number | VMP120A | 29M7957 |
| Product Name | Voltage Monitor Relays - VMP Series | Relay, Voltage Sensing, Dpdt, 120Vac; Product Range Macromatic Controls |
| Voltage Sensitive Relay | Overvoltage Protection; Undervoltage | |
| Protective Functions | Time Delay | |
| Features | Automatic Reset; Sealed Relay; Visual Indicator | Voltage Sensitive |
| Operating Temp | -20 to 150 F (-28.89 to 65.56 C) | |
| Voltage Sensing Range | 99 to 138 volts |
