Amprobe MGX1A-200, and MGX1A-400,
Motor Guards

Protect 3 phase motor from loss of the power, low voltage, phase reversal and voltage unbalance
Adjustable voltage settings
Trip/Reset delays avoid nuisance tripping
Prevents motor restart until fault is cleared
Works with 60 and 50Hz motors
Low voltage (% of set point): trip 90%, reset 93%
Voltage Unbalance: trip 6%, reset 4.5%

Amprobe MGX1A-200 Shown

Specifications
Ground Resistance
Range (Ω)		Resolution (Ω)	Accuracy
3-Phase Line Voltage (specify Range)		200 to 400V
Frequency		50/60 Hz
		Low Voltage trip level will be 1 to 2% lower at 50Hz
Operating Points
Low Voltage (% of set point)	Trip	90%
	Reset	93%
Voltage Unbalance	Trip	6%
	Reset	4.5%
Trip Delay Time	Low Voltage	4 seconds
	Unbalance & Phasing	2 Seconds
Reset delay Time	After a fault	2 Seconds
	From a complete power Loss	5 Seconds
Output Contact Rating (pilot Duty) SPDT		480 VA @ 240 VAC
Transient Protection (internal)		2500 V for 10m Seconds
Repeat Accuracy (Fixed Conditions)		±0.1%
Power Consumption		5 Watts (max.)
Weight		14 Oz.

Ordering Information
Model	Description	Buy Online	List Price
MGX1A200	Amprobe MGX1A-200 200V, 1A Three Phase Motor Protector		$123.16 (Reg. $139.95)
MGX1A400	Amprobe MGX1A-400 400V, 1A Three Phase Motor Protector		$123.16 (Reg. $139.95)
MGX4A400	Amprobe MGX4A-400 400V, 4A Three Phase Motor Protector	Discontinued
MGX4A600	Amprobe MGX4A-600 600V, 4A Three Phase Motor Protector	Discontinued