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Automatic Voltage Regulator 42 VDC 7 Amp

The EA42-7 self excited brushless type genset Voltage Regulator is a Compatible Replacement for the Original Basler AEC42-7.

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Tel: (24-hour) +44 (0)7484709956 (United Kingdom)

*All manufacturer names, numbers, symbols and descriptions are used for reference purpose only and do not imply that any part is the product of these manufacturer.


  • Voltage Regulation < ±1%
  • Over Excitation Automatic Shut Down
  • For Use In Parallel Operation
  • EMI Suppression
  • Under Frequency Protection
  • Soft Start Voltage Ramping


Model NO. EA42-7
Sensing Input Voltage 220~252 VAC ±10% 1 phase 2 wire
Frequency 50/60 Hz selectable
Power Input Voltage 220~260 VAC ±10% 1 phase 2 wire
Frequency 50/60 Hz
Output Voltage Max. 42 VDC
Current Continuous 7A, Intermittent 15A for 10 sec.
Resistance Min. 6 Ohm Max. 105 Ohm
Volts Regulation < ±1% (with 4% engine governing)
Voltage Build-up Residual volts at AVR terminal > 5 VAC
Voltage Adjustable Range 180~277 VAC
External Volts Adjustment ±10% with 1 K Ohm 1 watt trimmer
Unit Power Dissipation Max. 20 watt
EMI Suppression Internal electromagnetic interference filtering
Thermal Drift 0.05% per °C change in AVR ambient
Under Frequency Protection
(Factory Setting)
60 Hz system presets knee point at 55 Hz
50 Hz system presets knee point at 45 Hz
Over Excitation Shutdown Field volts shut down after a time delay, If exciter field volts exceed 52±2 VDC
Quadrature Droop Max. Sensitivity 1 VAC 2%
Max. Input 5 VAC @ 5 Ohm Burden
Environment Operating Temperature : -40~60 °C
Storage Temperature : -40~85 °C
Relative Humidity : Maximum 95%
Vibration : 1.5G @ 5~30 Hz / 5.0G @ 30~500 Hz
AVR Controls Functions VOLT : Voltage Adjustment
STAB : Stability Adjustment
U/F*: To Set the U/F Knee Point (*U/F: Under Frequency Protection)
Shock Withstands up to 20 G in each X, Y, Z axes
Dimensions 140.0 (L) x 125.0 (W) x 79.4 (H) mm
Weight 680 g ±2%
<p class="anno2">*Note : All features &amp; specifications subject to change without notice.</p>