Model 50R-200 | 190-240VAC 1-Phase Voltage Monitor


Littelfuse Datasheet


The 50R series single-phase voltage monitor has a voltage sensing circuit which constantly monitors the single-phase power for a low-voltage condition. Single-phase motors on fans, compressors, air conditioners, heat pumps, well pumps, sump pumps, and small conveyor motors are all applicable to the 50R Series.

When a harmful condition is detected, the MotorSaver’s output relay is deactivated after a specified trip delay. The output relay reactivates after power line conditions return to an acceptable level and a specified amount of time has elapsed (restart delay). The trip delay prevents nuisance tripping due to rapidly fluctuating power line conditions.

Additional information

Weight 1 lbs
Dimensions 8 × 8 × 8 in
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