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Universal Automatic / Digital Voltage Regulator

SP Powerworld ADVR-12 Universal AVR is a direct replacement for the Original CAT VR6. It's also Compatible with the following CAT models: VR3 - VR4 - CDVR.

Ex stock - shipped Worldwide.

For GBP, EURO or USD pricing please contact us:

Sales: [email protected]

Office: [email protected]

Tel: +44 (0)115 923 2568 (United Kingdom)

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




  • Single phase sensing & single phase and three phase power input
  • Voltage regulation < ±0.5%
  • 220/380/440/480VAC programmable input
  • DIP switch selectable 50/60Hz
  • Multiple excitation system compatibility: SHUNT, AUX, PMG
  • Inverse-time over excitation protection
  • Under frequency protection
  • Soft start voltage ramping
  • EMI suppression
  • Built-in high capacity protection fuse


Sensing Input Voltage 180~520VAC single phase DIP switch selectable Frequency 50/60Hz jumper selectable Power Input Voltage 100~300 VAC single phase or three phase Output Voltage Max. 125VDC @ 220VAC Current Continuous 12A, Intermittent 25A for 10 Sec. Volts Regulation < ±0.5% (with 4% engine governing) Voltage Build-up Residual volts at AVR terminal > 6VAC Over Excitation Protection Inverse-time 125±5VDC @ 220VAC External Volts Adjustment 10 K Ohm 1 watt trimmer Unit Power Dissipation Max. 8 watt Soft Start Ramp Time 4 Sec. EMI Suppression Internal electromagnetic interference filtering Thermal Drift 0.03% per °C change in AVR ambient Under Frequency Protection (Factory Setting) 60Hz system presets knee point at 55Hz 50Hz system presets knee point at 45Hz Environment Operating Temperature : -40~70 °C Storage Temperature : -40~85 °C Relative Humidity : Maximum 95% Vibration : 3G @ 100~2KHz AVR Controls Function VOLT : Voltage Adjustment STAB : Stability Adjustment U/F: To Set the U/F Knee Point (*U/F: Under Frequency Protection) DROOP : Droop Adjustment TRIM : Analogue Input Adjustment DIP : U/V Rate Set O/E LED : O/E Protection Indicator (*O/E : Over Excitation Protection) U/F LED : U/F Protection Indicator Dimensions 214.0 (L) x 163.0 (W) x 45.7 (H) mm Weight 1130g ±2%