J. Schneider CEM 12-1 Capacitor Extension Module Industrial PartJ. Schneider CEM 12-1 Capacitor Extension Module OverviewJ. Schneider CEM 12-1, Capacitor Extension Module. The CEM module is used to increase the buffer energy for the devices C–TEC 1203 and AC C–TEC 1203-05. The C–TEC monitors and controls the charging and discharging of the extension … By Inaparts Author 11/06/202127/09/2024