Allen-Bradley 825-PD Control Module

The Allen-Bradley 825-PD Control Module is the base unit of the 825-P Modular Protection System from Allen-Bradley, delivering centralized motor protection and protection coordination within a modular control architecture. As part of the 825-P family, the 825-PD provides the core protection logic and interfaces with optional expansion modules; Rockwell notes that the 825-P Modular Protection System was discontinued on December 31, 2016, with migration to the E300 electronic overload relays. The 825-PD accepts a 24-48 V DC control circuit and draws up to 15 W of power, making it compatible with common low-voltage control schemes used on industrial motors. It is identified by the model-specific code 825-PD, carries a UPC of 781180030994, lists origin as United States of America, and includes a standard 1-year warranty; the 825-UM004 User Manual documents its installation and operation. In practice, 825-PD-based systems protected motors in three-phase installations and integrated with broader plant protection schemes, though current purchasing typically targets the E300 family for continued support.