SINAMICS Additional line filter Cl. B for Power Module FSC base mounting possible 380-480V 3AC 39.4A 362x 190x 55 mm HxWxD Electrical filter SINAMICS line reactor, Class B for the PM 250 Power Module of the SINAMICS G120 modular frequency converter. With an additional line filter, the Power Module achieves a higher radio interference class. The frame sizes FSC of the PM250 Power Module is only available with an integrated line filter Class A. To achieve Class B acc. to EN 55011, the PM250 Power Module must be additionally equipped with a base filter Class B. The line filter is available for three-phase line voltages ranging from 380 V to 480 V in frame size FSC. SINAMICS – the integrated drive family for every field of application.