... Frequency Inverters includes 420, 430 and 440 series. For 420 series’ technical dataVoltage and power ranges200-240 V, ... usesConveyor systems, material transport, pumps, fans, mechanical engineering.For 430 series’ technical dataVoltage and power ranges380-480 V, ... systems, the textile industry, elevators, hoisting gear, mechanical engineering and the food, beverages and tobacco industries. ...