The SAIA PCD4.N210M4 is a compact power supply and CPU module for the PCD4 series of programmable controllers. It accepts a 24VDC power input (±20%) and provides regulated power to the system, while integrating a watchdog timer, battery backup (Batt), and control logic for industrial automation. The module features status LEDs for power, battery, reset, and watchdog, along with run/halt controls and a 3.15A fuse for protection. Certified by UL, GL, and DNV, it is designed for reliable operation in harsh industrial and marine environments, supporting PLC-based control systems with stable performance and safety interlocks.
