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® deactivates its output relay 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. Applications• Fan motors• Air conditioners• Compressors• Heat, well, and sump pumps• Small conveyer motors *Note: 50 Hz will increase all delay timers by 20% Specifications Input Characteristics Line Voltage 50R-100 95–120 V ac50R200 190–240 V ac50R400 380–480 V ac Frequency 50*/60 Hz Functional Characteristics Low Voltage Trip (% of setpoint) 90%Reset (% of setpoint) 93% Delay Time (Nominal) Trip 4 seconds Restart (low voltage) 2 seconds Restart (complete power loss) 2 seconds Output Characteristics Output Contact Rating (SPDT - 1 Form C) 50R-100, 50R200 Pilot Duty 480 VA @ 240 V acGeneral Purpose 10 A @ 240 V ac 50R400 Pilot Duty 470 VA @ 600 V ac General Characteristics Ambient Temperature Range Operating -20°C to 70 °C (-4 °F to 158 °F)Storage -40 °C to 80 °C (-40 °F to 176 °F) Maximum Input Power 5 W Relative Humidity 10–95%, non-condensing per IEC 68-2-3 Terminal Torque 7 in.-lbs. Wire Size 12–18AWG Electrostatic Discharge (ESD) IEC 61000-4-2, Level 3, 6 kV contact, 8 kV air Fast Transient Burst IEC 61000-4-4, Level 3, 3.5 kV input power and controls Transient Protection (Internal) IEC 61000-4-5; 1995 ±6 kV Dimensions H 74.4 mm (2.93”)W 133.9 mm (5.27”)D 74.9 mm (2.95”) Weight 0.98 lb. (15.68 oz., 444.52 g) Mounting Method #8 screws Special Options Opt. 2: Variable Restart Delay Manual, 2–300 seconds Opt. 3: Variable Trip Delay 2–30 seconds Opt. 9: High Voltage Detection Operating Points Trip (% of Setpoint) 110%Reset (% of Setpoint) 107% Certification & Compliance UL UL 508 (File #E68520)CE IEC 60947-6-2
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