FAQ > Voltright > AVR Single Phase 20Amps to 400Amps
Is the AVR set to 220 or 230 or 240V nominal?
The Automatic Voltage Regulators (AVRs) are normally set to 220V. It can operate normally and safely with 230V or 240V. In fact, the output will be reduced to 220V +/-4% which will be a better operating voltage for most electrical/electronic equipment and can additional save energy with certain type of equipment.