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The 50R series is a single-phase voltage monitor with a voltage-sensing circuit that constantly monitors the single-phase power for a low-voltage condition. 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. This monitor is used in a variety of applications such as compressors, air conditioners, heat pumps, well pumps, sump pumps, and small conveyer motors.
- Proprietary voltage sensing circuitry
- Adjustable trip delay (-3 models) and restart delay (-2 models) settings
- High-voltage detection (-9 models)
- 600 V rated relay contacts available on some models
- Constant monitoring of single-phase power for a low-voltage condition
- Prevents nuisance tripping due to rapidly fluctuating power line conditions, allows staggered start-up of multiple motors after a fault
- Trips and resets at a fixed percentage of the setpoint: trip 110 %, reset 107 %.
- Eliminates the need for a control transformer to step voltage down to 120–240 V for a control circuit
50R Voltage Relays Parts
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Filters
50R Voltage Relays Applications
- Fan motors
- Air conditioners
- Compressors
- Heat, well, and sump pumps
- Small conveyer motors
