ABB SA801F Power Supply Module for AC 800F Freelance Field Controller

ABB SA801F Power Supply Module for AC 800F Freelance Field Controller Core Function SA801F is the dedicated slot-mounted AC-DC power supply unit exclusively for ABB AC800F Freelance DCS field controllers. Core Function SA801F is the dedicated slot-mounted AC-DC power supply unit exclusively for ABB AC800F Freelance DCS field controllers. Converts universal 115/230 VAC mains input into stabilized 3.3 VDC and 5 VDC power to feed the AC800F CPU backplane, main controller board, and internal I/O expansion slots Embedded power-fail detection circuit: maintains DC output for minimum 20 ms after AC power loss, sends power-fail interrupt signal to CPU to trigger safe, controlled application shutdown and data saving before full power collapse (compliant with NAMUR standards) Integrated multi-layer