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Oct 11,2025
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Common single-phase overvoltage and undervoltage protectors are typically suitable for 220V AC voltage and 50Hz frequency, with rated operating currents of 40A and 63A.
The overvoltage trip value is typically around AC 270V, and the undervoltage trip value is around AC 170V. Parameters such as the recovery voltage and power-on delay after a power outage vary depending on the specific model and standard.
