Self Excited 5 Amp Automatic Voltage Regulator with High Cooling Efficiency

ADVR-054 has large heat sink which significantly increases cooling efficiency. This AVR has over excitation protection and it can automatically shut-off output when voltage sensing is lost. Compatible replacement for Basler KR7, Airman DST-100-2, Markon 36245, Markon MD1C, Sincro BL4,Datakom AVR-4.

121.0 (L) x 81.0 (W) x 44.5 (H) mm

270 g +/-2%




Compact size, robust and high reliability

Innovative heat sink significantly increases cooling efficiency

220/380/440/480 Vac selectable input

Soft start voltage ramping

Over excitation protection

Digital low frequency protection circuit, prevents thermal drift

EMI suppression

Automatic shut off output when voltage sensing is lost

Built-in high capacity fuse


Sensing Input (Average Reading)
170 to 260 Vac @ 220 Vac 1 phase 2 wire
340 to 520 Vac @ 440 Vac 1 phase 2 wire
220/440 Vac (DIP switch setting)
50/60 Hz (DIP switch setting)

Power Input
Voltage 100 to 300 Vac 1 phase 2 wire

Excitation Output
63 Vdc @ 220 Vac power input 1 phase continuous 5A Max.
90 Vdc 7A for 10 seconds

Excitation Resistance
Min. 15 ohms
Max. 100 ohms

Volts Regulation
Less than +/-0.5% (with 4% engine governing)

Build Up Voltage
Residual volts at power input terminal > 5 Vac 25 Hz

Over Excitation Protection
78 Vdc +/-6% @ 220 Vac Time delay 5 seconds
Function can be turn off

External Volts Adjustment
Max +/-3.5% with 1 kΩ 1 watt trimmer

Static Power Dissipation
Max. 8 watts

Soft Start Ramp Time
3 seconds +/-10%

EMI Suppression
Internal electromagnetic interference filtering

Voltage Thermal Drift
Less than 3% at -40 to +70 °C

Under Frequency Protection (Factory Setting)
50 Hz system presets knee point at 45 Hz
60 Hz system presets knee point at 55 Hz

Under Frequency Knee Point Thermal Drift
Less than +/-0.1 Hz at -40 to +70 °C