Siemens 6SN1123-1AA00-0BA0 LT Module Interface

Siemens 6SN1123-1AA00-0BA0 LT-Modul INT. 25A is the SIMODRIVE 611 LT power module, a one-axis power stage used in Siemens SIMODRIVE drive systems. This internally cooled LT power module provides 25 A continuous current on a single axis, with motor current ratings specified as 12.5 A on the feed axis (1FT5), 9 A on the main spindle (1FT6), and 8 A for asynchronous operation, making it suitable for precise motor control in CNC and automation applications. Designed to pair with the SIMODRIVE 611 control and regulator electronics, this module acts as the drive’s power portion for a 1-axis configuration. The LT-Modul INT. 25A is commonly sold as a spare part for legacy SIMODRIVE 611 installations and is often catalogued as Version A; Siemens Industry Mall lists the model as 6SN1123-1AA00-0BA0, with third-party listings describing it as a genuine Siemens LT-Modul intended for single-axis use. In practical terms, it’s found in older CNC machines and industrial equipment that relied on the SIMODRIVE 611 family for precise servo control, offering a compact, internally cooled power stage to drive a servo motor.