Schneider Electric 140CPS11420 AC Power Supply Module

The Schneider Electric Modicon 140CPS11420 AC Power Supply Module is a rack-mounted 5 V DC power source for Modicon Quantum PLC systems, delivering 8 A (40 W) to support PLC CPUs and I/O modules in industrial environments. With an input range of 85–264 V AC and 47–63 Hz, it plugs into the Quantum backplane and provides a regulated supply to control racks, enabling stable operation of manufacturing lines and process control systems. Protection includes overload and short-circuit protection to safeguard the power network and maintain continuous PLC operation. Common replacements are Modicon 140CPS12420, 140CPS21400, and BMXCPS3500, making it suitable for replacement, retrofit, and sustaining reliable power delivery in Modicon Quantum PLC systems. Applications include industrial automation environments such as manufacturing, energy facilities, and material handling where dependable power distribution to PLC CPUs and I/O modules is required.