Siemens 6SN1118-0DJ21-0AA0 6SN1123-1AA00-0BA1 Power Module

Siemens SIMODRIVE 611 Power Module, identified by 6SN1123-1AA00-0BA1 and also listed under 6SN1118-0DJ21-0AA0, is a one‑axis drive module designed for the SIMODRIVE 611 servo system. It accepts regulated DC input around 600 V (625 V nominal) and, in the 6SN1123-1AA0 family, supports either internal cooling or hose/external cooling configurations in a compact 50 mm wide package to drive a single motor axis. The nominal motor current and exact specifications vary by cooling option and current step within the 6SN1123-1AA0 series (examples in the family span from low ampere steps up to higher current ratings), with catalog entries sometimes describing this model as a 25 A power module depending on configuration. Typical data for the 6SN1123-1AA0 family include efficiency around 0.98 for internal cooling variants and detailed power-loss characteristics (PVtot, PVint, PVext) that scale with current and cooling choice. This module is used to deliver controlled power to a single servo axis in industrial automation applications, such as CNC machinery, packaging lines, and other automated production cells, enabling precise speed and torque control within the SIMODRIVE 611 ecosystem.