The AFP7PSA1 is the entry-level 24 VDC power supply for the FP7 PLC rack. It delivers 1.0 A from a 100–240 VAC input and mounts on DIN rail with screw terminals. That 1.0 A rail must cover the total current draw of the CPU, I/O modules, and any expansion units — if your loaded rack exceeds that, step up to the AFP7PSA2 which provides 1.8 A in the same footprint.
Where to land the BOM line
Physically identical to the AFP7PSA2, the AFP7PSA1 delivers 1.0 A. Use the AFP7PSA2 when backplane draw exceeds 1.0 A.