6SE6400-3CC11-7FD0

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Line commutating chokes are used to smooth voltage peaks or to bridge commutating dips. In addition, line commutating chokes reduce the effects of harmonics on the inverter and the power supply. If the line impedance is < 1 %

A line commutating choke must be used in order to reduce the current peaks. In line with EN 61 000-3-2 regulations “Limits for harmonic currents with device input current <= 16 A per phase”, there are special aspects for drives with 250 W to 550 W and 230 V single-phase supplies which can be used in non-industrial applications (1st environment).

For devices with 250 W and 350 W, it is necessary either to fit the recommended input chokes or to apply to the power utility company for authorization to connect the devices to the public power supply.

No limits are currently defined in the EN 61 000-3-2 standard for professionally used devices with a connected load >1 kW which means that the Inverters with an output power ? 0.75 kW comply with the EN 61 000-3-2 standard. However, in accordance with the regulations of EN 61000-3-12 “Limits for harmonic currents > 16 A and <=75 A per phase” an approval is necessary from the power supplier for drives that are intended to be connected to the public low-voltage network. Please refer to the Operating Instructions for the values of the harmonic currents.