SINAMICS line choke 380-480V 3AC 47-63Hz I_LN=47.0A stand-alone electrical choke SINAMICS line choke for the PM240-2 Power Module (standard and push-through version) of the SINAMICS G120 modular frequency converter and the SINAMICS G120C compact converter. Line chokes smooth the current consumed by the converter and thus reduce the harmonic components in the line current. By reducing the current harmonics, the power components in the rectifier and the intermediate circuit capacitors are thermally relieved and the line perturbations are reduced. Using a line choke increases the service life of the converter. The line chokes are available in sizes FSA to FSC and in a three-phase voltage range between 200 V and 480 V. SINAMICS - simply my drive.