... MICROMASTER frequency inverters address drive applications in the power range extending from 0.12 kW up to ... and 440 series. For 420 series’ technical dataVoltage and power ranges200-240 V, ± 10%, 1 AC, 0 ... fans, mechanical engineering.For 430 series’ technical dataVoltage and power ranges380-480 V, ± 10%, 3 AC, 7. ... and fans. For 440 series’ technical dataVoltage and power ranges200-240 V, ± 10%, 1 AC, 0 ...