Voltage Monitoring Relay

201A

Datasheet

The 201A is a 3-phase, auto-ranging, dual-range voltage monitor that protects 190-480VAC, 50/60Hz motors regardless of size. The product provides a user selectable nominal voltage setpoint and the voltage monitor

automatically selects between the 200V and 400V range. The 201A includes advanced single LED diagnostics, where color and different light patterns distinguish between faults and normal conditions.

This unique microcontroller-based voltage and phase-sensing device constantly monitors the 3-phase voltages to detect harmful power line conditions. When a harmful condition is detected, the 201A’s output relay is deactivated after a specified trip delay. The output relay reactivates after power line conditions return to acceptable levels.

  • Electrical Characteristics
    • Catalog # 201A
    • Input
      Voltage (V)       190 to 480VAC
    • Output
      Form       SPDT
    • Termination Type Torque: 12in-lbs; Wire: Stranded or solid 12-22AWG
    • Mounting Method DIN rail or surface mount (plug-in to OT08-PC socket)
    • Dimensions 1.75 in H x 2.38 in W x 4.13 in D (44.5 x 60.3 x 104.8 mm)
    • Weight (lbs/g) 0.7 lb. (11.2 oz. 317.5 g)
    • Catalog # 201A-9
    • Input
      Voltage (V)       190 to 480VAC
    • Output
      Form       SPDT
    • Termination Type Torque: 12in-lbs; Wire: Stranded or solid 12-22AWG
    • Mounting Method DIN rail or surface mount (plug-in to OT08-PC socket)
    • Dimensions 1.75 in H x 2.38 in W x 4.13 in D (44.5 x 60.3 x 104.8 mm)
    • Weight (lbs/g) 0.7 lb. (11.2 oz. 317.5 g)