6SN1123-1AA00-0LA3 is a Siemens SIMODRIVE 611 one axis power module identified by revision LA3. It represents Not specified in the current article description module class with 42 A feed-axis and 45 A main-spindle rated motor-current data.

The power module operates inside a modular SIMODRIVE 611 system with the compatible line-supply/infeed, control module, motor, feedback and cooling arrangement selected for the machine.

• Provides the power stage for one axis in a modular SIMODRIVE 611 drive group.
• Keeps the LA3 article revision explicit to separate 6SN1123-1AA00-0LA3 from visually similar power modules.
• Carries the documented Not specified in the current article description module designation and 42 A / 45 A motor-current ratings.
• Uses the connected control module for regulation, motor feedback processing and machine-axis coordination.
• Integrates with the compatible infeed, DC link, motor cabling and cabinet cooling arrangement.

• Use 6SN1123-1AA00-0LA3 only within a compatible SIMODRIVE 611 drive group.
• Match the control module, motor type, feedback system and parameter data to the original axis design.
• Confirm the line-supply/infeed module and DC-link capacity for the complete drive lineup.
• Preserve the internal cooling arrangement and cabinet airflow used by the installed power module.
• Compare the complete article number and revision before selecting a service replacement.

• Retain the full 6SN1123-1AA00-0LA3 article number; the final revision characters are part of the hardware definition.
• Record motor nameplate data, control-module article, feedback type, parameter backup and axis assignment.
• Verify that the replacement supports the documented Not specified in the current article description module class and one axis arrangement.
• Check DC-link isolation and discharge under the machine safety procedure before module removal.
• After installation, restore validated parameters and complete axis, feedback, current-limit and protective-function tests.