Yokogawa Electric Corporation NFPW444-51 S2 Power Module

The Yokogawa NFPW444-51 S2 Power Module provides regulated 5.1 V DC system power and 24 V DC field power to CPU, I/O, and communication modules in STARDOM FCN control systems. It operates from a 24 VDC input (21.6–31.2 VDC) with a maximum input current of 3.3 A, delivering up to 7.8 A at +5.1 VDC for system power and supplying 24 VDC field power to analog I/O modules, enabling centralized power distribution. Total output is approximately 40 W continuous with 60 W peak capability, and the module supports a peak +5.1 VDC current up to 11.8 A. Protection features include overcurrent, overvoltage, and short-circuit protection; insulation resistance of at least 50 MΩ at 500 VDC; and 500 VAC withstand voltage for 1 minute. Mounting is compatible with NFBU050 and NFBU200 base modules, and the unit supports redundant (duplex) configurations and hot-swappable operation, weighing approximately 0.24–0.3 kg. Commonly deployed in industrial automation and process control environments such as chemical plants, power generation, and oil & gas facilities to provide stable control-system power and minimize downtime.