The Allen-Bradley 1606-XLRED20-30 is a redundancy module designed for the 1606-XL family to provide a highly available 24 V DC power rail through N+1 redundancy for automation loads. It accepts two independent 24 V DC power inputs in a 1+1 redundant arrangement and, in that configuration, limits short-circuit current to 8 A per supply to protect both sources and connected equipment. The model name indicates a per-supply rating in the 20–30 A range, and Rockwell notes that this product was discontinued on October 30, 2017. This module is used to maintain uninterrupted power to Rockwell Automation 1606-XL controllers and peripherals in critical industrial applications.
