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Series: 201A

201A Series – Three-Phase Voltage/Phase Monitor

Product Status| Activei

The 201A 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 provides a user-selectable nominal voltage setpoint and will automatically select between the 200 V and 400 V range. It includes advanced, single LED diagnostics where color and light patterns distinguish between faults and normal conditions. This unique microcontroller-based voltage and phase-sensing unit constantly monitors the three-phase voltages to detect harmful power line conditions. 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 acceptable levels for a specified restart delay time.

Proprietary microcontroller-based circuitry
Auto-sensing wide voltage range
Advanced LED diagnostics
Compact design for 8-pin; DIN-rail or surface mount

Constant monitoring of single-phase, low-voltage, voltage unbalance, phase reversal, power line conditions – high-voltage monitoring is optional
Automatically senses system voltage between 190–480 V ac. Saves setup time
LED indications include: normal operation, power-up restart delay, reverse-phase trip, unbalance/single-phase trip, high/low voltage trip
Allows flexibility in panel installation

201A Parts

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	Part Number	Actions	Input Voltage (V)	Output Form	Termination Type	Mount Method	Dimensions	Weight (kg)	Humidity	Input AC Line Frequency (Hz)	Maximum Input Power (W)	Output Load Rating (VA)	Overvoltage Reset Voltage (%)	Overvoltage Trip Voltage (%)	Restart Delay Range	Trip Delay Range	Trip Point Accuracy (%)	Type of Detection	Undervoltage Reset Voltage (%)	Undervoltage Trip Voltage (%)	Voltage Unbalance Reset (%)	Voltage Unbalance Trip Point (%)

	Part Number	Actions	Input Voltage (V)	Output Form	Termination Type	Mount Method	Dimensions	Weight (kg)	Humidity	Input AC Line Frequency (Hz)	Maximum Input Power (W)	Output Load Rating (VA)	Overvoltage Reset Voltage (%)	Overvoltage Trip Voltage (%)	Restart Delay Range	Trip Delay Range	Trip Point Accuracy (%)	Type of Detection	Undervoltage Reset Voltage (%)	Undervoltage Trip Voltage (%)	Voltage Unbalance Reset (%)	Voltage Unbalance Trip Point (%)
	Series: 201A - 201A Series – Three-Phase Voltage/Phase Monitor Series: 201A 201A Series – Three-Phase Voltage/Phase Monitor	Datasheet Request Sample View More	190 - 480 Vac	SPDT	Torque: 12 in-lbs.; 12 - 22 AWG solid or stranded		1.75 H x 2.38 W x 4.13 D in. (44.5 x 60.3 x 104.8 mm)	0 Kg (kilogram)	10 - 95% non-condensing per IEC 68-2-3	50 / 60	5	Pilot Duty: 480 VA @ 240 Vac; General Purpose: 10 A @ 240 Vac			2 s	Under/Over Voltage: 4 s; Unbalance/Phase faults: 2 s	±1%		93%	90%	4.50%	6%
	Series: 201A - 201A Series – Three-Phase Voltage/Phase Monitor Series: 201A 201A Series – Three-Phase Voltage/Phase Monitor	Datasheet Request Sample View More	190 - 480 Vac	SPDT	Torque: 12 in-lbs.; 12 - 22 AWG solid or stranded		1.75 H x 2.38 W x 4.13 D in. (44.5 x 60.3 x 104.8 mm)	0 Kg (kilogram)	10 - 95% non-condensing per IEC 68-2-3	50 / 60	5	Pilot Duty: 480 VA @ 240 Vac; General Purpose: 10 A @ 240 Vac	107%	110%	2 s	Under/Over Voltage: 4 s; Unbalance/Phase faults: 2 s	±1%	High Voltage Detection	93%	90%	4.50%	6%