Allen-Bradley 1794-ASB Power Supply

The Allen-Bradley 1794-ASB is a Rev A01 FLEX I/O remote I/O adapter that accepts 24V DC input and provides a regulated 5V DC output, designed for use in FLEX I/O networks as the interface between a controller and remote I/O modules. Key specifications include a nominal 24V input with an operating range of 19.2–31.2V DC, a 24V current draw of about 330 mA, and total power consumption of roughly 7.9 W, with an inrush current up to 23 A for 2 ms. This module can be installed as the last device in a FLEX I/O chain where a separate power source can be brought in, and its 5V DC output supports the on-board regulation within the adapter assembly. Identified by its Rev A01 designation, the 1794-ASB serves as a compact power interface within the FLEX I/O family, enabling reliable expansion of remote I/O while sourcing 5V for local circuitry.