EA350 self excited brushless type genset voltage regulator is a compatible replacement for Marathon 
SE350 regulator and Basler AVC63-4D regulator. 

Feature:
Voltage Regulation < ±1% 
Optional 120/240 VAC Sensing Input Switch* 
50/60 Hz Selectable 
Under Frequency Protection 
Built-in High Breaking Capacity Fuse 
EMI Suppression

Parameter:
Sensing Input Voltage 120(90~132) / 240(171~264) VAC DIP switch selectable
Frequency 50/60 Hz selectable
Output Voltage Max. 37 VDC @ 120 VAC input , Max. 74 VDC @ 240 VAC input
Current Continuous 4A, Intermittent 7A for 60 sec. 
Resistance Min. 15 Ohm Max. 100 Ohm
Voltage Regulator Rate < ±1% (with 4% engine governing) 
Voltage Build-up Residual volts at AVR terminal > 3. 5 VAC
External Voltage Adjustment ±5% @ 1 K Ohm 1 watt / ±10% @ 2 K Ohm 1 watt
Unit Power Dissipation Max. 8 watt
EMI Suppression Internal electromagnetic interference filtering
Under Frequency Protection
(Factory Setting) 60 Hz system presets knee point at 55 Hz
50 Hz system presets knee point at 45 Hz
Environment Operating Temperature : -40~60 °C
Storage Temperature : -65~85°C
Relative Humidity : Maximum 95%
Mechanical Vibration : 1. 3G @ 5~26 Hz / 5. 0G @ 52~1000 Hz
AVR Controls Functions VOLT Voltage : Adjustment
STAB : Stability Adjustment
U/F*: To Set the U/F Knee Point (*U/F: Under Frequency Protection) 
Dimensions 99. 5 (L) x 67. 0 (W) x 47. 5 (H) mm
Weight 185 g ±2%