EA04A

Direct Replacement for Basler VR63-4 and VR63-4A Regulator

EA04A is a self excited brushless type AVR, which is able to directly replaces Basler VR63-4 and VR63-4A. It can also replace Marathon SE100A.
  • All manufacturer names and numbers are used for reference purpose only and do not imply that any part is the product of these manufacturer.
  • Voltage regulation less than +/-1%
  • For use in 50/60 Hz brushless generators
  • Optional 120/240 Vac sensing voltage switch *1
  • Under frequency and over excitation protection
  • EMI suppression
  • Built-in high breaking capacity fuse
  • Use with KUTAI EP200 Paralleling Module for parallel operation
  1. Basler Model VR63-4A only fits 120 Vac Generators, and Basler Model VR63-4 only fits 240 Vac Generators respectively, and both original Basler models do not have fuse protection.

Specifications
Sensing & Power Input
  • Voltage 120(90 to 132) / 240(171 to 264) Vac DIP switch selectable
  • Frequency 50/60 Hz selectable
Output
  • Voltage
  • Max. 32 Vdc @ 120 Vac input
  • Max. 63 Vdc @ 240 Vac input
  • Current Continuous 4A, Intermittent 7A for 60 seconds
  • Resistance
  • Min. 15 ohms
  • Max. 100 ohms
Voltage Regulation
  • Less than +/-1% (with 4% engine governing)
Build Up Voltage
  • 5Vac residual volts at power input terminal
External Voltage Adjustment
  • +/-15% with 1K ohm 1 watt potentiometer
Static Power Dissipation
  • Max. 8 watts
EMI Suppression
  • Internal electromagnetic interference filtering
Voltage Thermal Drift
  • Less than 5% at temperature range -40 to +70 °C
Under Frequency Protection
(Factory Presets)
  • 50 Hz system presets knee point at 45 Hz
  • 60 Hz system presets knee point at 55 Hz
Over Excitation Shutdown
  • Field volts shut down after a time delay if exciter field volts exceed 100+/-5 Vdc

AVR Control Functions
VOLT
  • Voltage adjustment
STAB
  • Stability adjustment

Environment
Operating Temperature
  • -40 to +60 °C
Storage Temperature
  • -40 to +85 °C
Relative Humidity
  • Max. 90%
Vibration
  • 1.5 Gs @ 5 to 30 Hz
  • 5.0 Gs @ 30 to 500 Hz

Physical Specifications
Dimensions
  • 100.0 (L) x 68.5 (W) x 33.0 (H) mm
Weight
  • 230 g +/-2%
Weight 0.23 kg
Dimensions 10 × 6.85 × 3.3 cm

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