Stamford Generator Parts Replace MX341 Voltage Regulator AVR

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Marathon Generators AVR SE350

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Automatic Voltage Regulator MX341 AVR For Stamford
Sensing Input	Voltage	170-250 V ac maximum
	Frequency	50-60 Hz nominal
	Phase	2
	Wire	2
Power Input	Voltage	140-220V ac
	Current	3A/phase
	Frequency	100-120 Hz nominal
	Phase	3
	Wire	3
Output	Voltage	max 120V dc
	Current	continuous 2.7 A, transient 6A for 10 sec.
	Resistance	15 ohms minimum
Regulation		+/- 1% (see note 1)
Thermal Drift		1% for 40°C change in AVR ambient (after 10 min)
Soft Start Ramp Time		3 seconds
Typical system response	Filed current to 90%	80 ms
Typical system response	Machine Volts to 97%	300ms
External voltage adjustment		±6% with 1k ohm 1 watt trimmer
Under frequency protection	Set point	95% Hz (see note 2)
Under frequency protection	Slope	100-300% down to 30 Hz
Unit power dissipation		12 watts maximum
Accessory Input		±1 V = ± 5% change in output volts
Quadrature Droop Input	Maximum sensitivity	0.07A for 5% droop @ 0p.f. (10 Ω Burden)
Over Excitation Protection	Set point	75 V dc
Over Excitation Protection	Time delay (fixed)	10 seconds
Environmental	Vibration	20-100 Hz; 50mm/sec
	Vibration	100Hz – 2kHz; 3.3g
	Operating temperature	-40 to +70°C
	Relative Humidity	95% (0-60°C)
	Storage temperature	-55 to +80°C