50R Series - Single-Phase Voltage Monitor

The 50R 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 Model 50R.

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 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.

Access specifications, certifications, check availability and order parts below

Catalog #Input
Voltage (V)
Output
Form
Termination TypeMounting MethodDimensionsWeight (lbs/g)Compare
50R-10095 to 120VACSPDT - 1 Form CTorque: 7in-lbs; Wire: 12-18AWG#8 screws2.93 in H x 5.27 in W x 2.95 in D (74.4 x 133.9 x 74.9 mm)0.98 lb. (15.7 oz. 444.5 g)
50R-100-295 to 120VACSPDT - 1 Form CTorque: 7in-lbs; Wire: 12-18AWG#8 screws2.93 in H x 5.27 in W x 2.95 in D (74.4 x 133.9 x 74.9 mm)0.98 lb. (15.7 oz. 444.5 g)
50R200190 to 240VACSPDT - 1 Form CTorque: 7in-lbs; Wire: 12-18AWG#8 screws2.93 in H x 5.27 in W x 2.95 in D (74.4 x 133.9 x 74.9 mm)0.98 lb. (15.7 oz. 444.5 g)
50R2002190 to 240VACSPDT - 1 Form CTorque: 7in-lbs; Wire: 12-18AWG#8 screws2.93 in H x 5.27 in W x 2.95 in D (74.4 x 133.9 x 74.9 mm)0.98 lb. (15.7 oz. 444.5 g)
50R20029190 to 240VACSPDT - 1 Form CTorque: 7in-lbs; Wire: 12-18AWG#8 screws2.93 in H x 5.27 in W x 2.95 in D (74.4 x 133.9 x 74.9 mm)0.98 lb. (15.7 oz. 444.5 g)
50R2003190 to 240VACSPDT - 1 Form CTorque: 7in-lbs; Wire: 12-18AWG#8 screws2.93 in H x 5.27 in W x 2.95 in D (74.4 x 133.9 x 74.9 mm)0.98 lb. (15.7 oz. 444.5 g)
50R400380 to 480VACSPDT - 1 Form CTorque: 7in-lbs; Wire: 12-18AWG#8 screws2.93 in H x 5.27 in W x 2.95 in D (74.4 x 133.9 x 74.9 mm)0.98 lb. (15.7 oz. 444.5 g)
50R4002380 to 480VACSPDT - 1 Form CTorque: 7in-lbs; Wire: 12-18AWG#8 screws2.93 in H x 5.27 in W x 2.95 in D (74.4 x 133.9 x 74.9 mm)0.98 lb. (15.7 oz. 444.5 g)
50R40029380 to 480VACSPDT - 1 Form CTorque: 7in-lbs; Wire: 12-18AWG#8 screws2.93 in H x 5.27 in W x 2.95 in D (74.4 x 133.9 x 74.9 mm)0.98 lb. (15.7 oz. 444.5 g)
50R4003380 to 480VACSPDT - 1 Form CTorque: 7in-lbs; Wire: 12-18AWG#8 screws2.93 in H x 5.27 in W x 2.95 in D (74.4 x 133.9 x 74.9 mm)0.98 lb. (15.7 oz. 444.5 g)