Siemens 6FS1-122-0AC Circuit Board

Siemens 6FS1-122-0AC is a printed circuit board (PC board) used as a spare part in Siemens industrial automation equipment. In distributor catalogs it is commonly listed as FAG 23 PC BOARD, a cross-reference that appears on reseller pages such as Atlas Shipcare and Save-Tech, and it is also shown in multiple third‑party listings under the 6FS1-122-0AC designation. The part number 6FS1-122-0AC identifies this board within Siemens’ legacy catalog families and is the identifier buyers use when seeking a replacement for older Siemens panels and modules. Because it is treated as a specialty spare part rather than a current mainstream catalog item, availability often appears through specialized distributors and secondary marketplaces. When sourcing this board, it is prudent to search for both 6FS1-122-0AC and FAG 23 PC BOARD to ensure you locate the exact PCB variant that matches your equipment, and to verify compatibility with the original cabinet, controller, or backplane per the equipment documentation or a Siemens parts representative. This clear cross-reference and model detail helps technicians pinpoint the correct replacement quickly, avoiding mismatches that could arise from similar-looking Siemens PC boards in the same product family.