Voltage Monitoring Relay
3-phase voltage monitor that protects 475-600VAC, 50/60Hz motors frin damage caused by low voltage, voltage unbalance, single phasing, and phase reversal. A unique microcontroller-based voltage and phase-sensing circuit constantly monitors the 3-phase voltages to detect harmful power line conditions. When a harmful condition is detected, the output relay is deactivated after a specified trip delay. The output relay reactivates after power line conditions return to acceptable levels. The Model 102 includes advanced single LED diagnostics. Five different light patterns distinguish between faults and normal conditions.
