Voltage Monitoring Relay

250A

Datasheet

The 250A series is a three-phase, auto-ranging, dual-range voltage monitor that protects 190–480 V ac, 50*/60 Hz motors regardless of their size. This monitor offers protection from low- and high-voltage,

Show More

  • Electrical Characteristics
    • Catalog # 250A
    • Input
      Voltage (V)       190 - 480 Vac
    • Output
      Form       DPDT - 2 Form C
    • Termination Type Torque: 7 in-lbs; Wire Size: 12 - 18 AWG
    • Mounting Method #8 screws
    • Dimensions 2.93 H x 5.27 W x 2.95 D in. (94.4 x 133.9 x 74.9 mm)
    • Weight (lbs/g) 0 Lb
    • Humidity Up to 95% non-condensing per IEC 68-2-3
    • Input AC Line Frequency (Hz) 50 / 60 (50 will increase all delay timers by 20%)
    • Maximum Input Power 5
    • Output Load Rating (VA) Pilot Duty: 480 VA @ 240 Vac B300; General Purpose: 10 A @ 240 Vac
    • Overvoltage Reset Voltage (%) 107%
    • Overvoltage Trip Voltage (%) 110%
    • Restart Delay Range Manual; 2 - 300 s adjustable
    • Trip Delay Range Under/Over Voltage: 4 s; Unbalance/Phase faults: 2 s
    • Trip Point Accuracy (%) ±1%
    • Undervoltage Reset Voltage (%) 93%
    • Undervoltage Trip Voltage 90%
    • Voltage Unbalance Reset (%) 4.50%
    • Voltage Unbalance Trip Point (%) 6%
    • Datasheet
    • Check Stock Order Sample
    • Catalog # 250-100-MET
    • Input
      Voltage (V)       95 - 120 Vac
    • Output
      Form       DPDT - 2 Form C
    • Termination Type Torque: 7 in-lbs; Wire Size: 12 - 18AWG solid or stranded
    • Mounting Method #8 screws
    • Dimensions 2.93 H x 5.27 W x 2.95 D in. (94.4 x 133.9 x 74.9 mm)
    • Weight (lbs/g) 0 Kg
    • Humidity Up to 95% non-condensing per IEC 68-2-3
    • Input AC Line Frequency (Hz) 50 / 60 (50 will increase all delay timers by 20%)
    • Maximum Input Power 5
    • Output Load Rating (VA) Pilot Duty: 480 VA @ 240 Vac; General Purpose: 10 A @ 240 Vac
    • Restart Delay Range Manual; 2 - 300 s adjustable
    • Storage Temperature (F/C) -40° to 80°C (-40° to 176°F)
    • Trip Delay Range Under/Over Voltage: 4 s; Unbalance/Phase faults: 2 s
    • Trip Point Accuracy (%) ±1%
    • Undervoltage Reset Voltage (%) 88%
    • Undervoltage Trip Voltage 85%
    • Voltage Unbalance Reset (%) 4.50%
    • Voltage Unbalance Trip Point (%) 6%
    • Datasheet
    • Check Stock Order Sample
    • Catalog # 250A-MET
    • Input
      Voltage (V)       190 - 480 Vac
    • Output
      Form       DPDT - 2 Form C
    • Termination Type Torque: 7 in-lbs; Wire Size: 12 - 18 AWG
    • Mounting Method #8 screws
    • Dimensions 2.93 H x 5.27 W x 2.95 D in. (94.4 x 133.9 x 74.9 mm)
    • Weight (lbs/g) 0 Kg
    • Humidity Up to 95% non-condensing per IEC 68-2-3
    • Input AC Line Frequency (Hz) 50 / 60 (50 will increase all delay timers by 20%)
    • Maximum Input Power 5
    • Output Load Rating (VA) Pilot Duty: 480 VA @ 240 Vac B300; General Purpose: 10 A @ 240 Vac
    • Restart Delay Range Manual; 2 - 300 s adjustable
    • Trip Delay Range Under/Over Voltage: 4 s; Unbalance/Phase faults: 2 s
    • Trip Point Accuracy (%) ±1%
    • Undervoltage Reset Voltage (%) 88%
    • Undervoltage Trip Voltage 85%
    • Voltage Unbalance Reset (%) 4.50%
    • Voltage Unbalance Trip Point (%) 6%
    • Datasheet
    • Check Stock Order Sample
    • Catalog # 250600
    • Input
      Voltage (V)       500 - 600 Vac
    • Output
      Form       DPDT - 2 Form C
    • Termination Type Torque: 7 in-lbs; Wire Size: 12 - 18AWG solid or stranded
    • Mounting Method #8 screws
    • Dimensions 2.93 H x 5.27 W x 2.95 D in. (94.4 x 133.9 x 74.9 mm)
    • Weight (lbs/g) 0 Kg
    • Humidity Up to 95% non-condensing per IEC 68-2-3
    • Input AC Line Frequency (Hz) 50 / 60 (50 will increase all delay timers by 20%)
    • Maximum Input Power 5
    • Output Load Rating (VA) Pilot Duty: 480 VA @ 240 Vac; General Purpose: 10 A @ 240 Vac
    • Overvoltage Reset Voltage (%) 107%
    • Overvoltage Trip Voltage (%) 110%
    • Restart Delay Range Manual; 2 - 300 s adjustable
    • Storage Temperature (F/C) -40° to 80°C (-40° to 176°F)
    • Trip Delay Range Under/Over Voltage: 4 s; Unbalance/Phase faults: 2 s
    • Trip Point Accuracy (%) ±1%
    • Undervoltage Reset Voltage (%) 93%
    • Undervoltage Trip Voltage 90%
    • Voltage Unbalance Reset (%) 4.50%
    • Voltage Unbalance Trip Point (%) 6%
    • Datasheet
    • Check Stock Order Sample