SINAMICS output choke for Power Module FSB, can be substructured Output choke, output-side power component, for the modular frequency converter SINAMICS G120. Output chokes are used to reduce the capacitive compensating currents and voltage gradient (du/dt) for motor cables > 50 m (shielded) or > 100 m (unshielded). The output choke covers the three-phase voltage range 3AC 200 V to 480 V. It is available as a substructure for the FSB frame size. SINAMICS - simply my drive.