Siemens 6RY1803-0AA25-0AA1 Printed Circuit Board

Siemens 6RY1803-0AA25-0AA1 is an Advanced CUD left, coated connector board for SINAMICS DCM DC converters, delivered as a printed circuit board with an integrated terminal block (C98043-A7100-L200).

This left-side assembly is part of the Advanced CUD configuration used in SINAMICS DCM drives, providing the dedicated interface between the drive’s control electronics and its power section, and it is offered in a coated version to withstand demanding industrial environments. The package includes the terminal block, simplifying field wiring and ensuring a compatible connection point within the left-hand CUD kit. The part is cataloged under the 6RY1803 family and is described in Siemens literature as the Advanced CUD left variant with coating, identified by the order number 6RY1803-0AA25-0AA1. Designed for use with SINAMICS DCM DC converters, this PCB is a direct replacement option for the corresponding left-side Advanced CUD in eligible SINAMICS DCM systems, preserving the alignment and pinout required by the drive’s control interface. Typical applications include service, maintenance, or upgrade scenarios where a left-side Advanced CUD with terminal connections is required to restore full drive functionality in industrial automation environments. Verifiable identifiers include product type — Printed Circuit Board / Connector Board; family — SINAMICS DCM; designation — Advanced CUD left; coating — coated; included terminal — C98043-A7100-L200; Siemens order code — 6RY1803-0AA25-0AA1.