The Allen-Bradley 173973 component is a crucial spare part for the digital DC drives in the renowned Bulletin 1395 line, supporting both 4-quadrant armature regenerative and 2-quadrant variants. These drives feature power ratings ranging from 1 to 600 horsepower across 230 to 460 Volts AC, alongside programmable acceleration, deceleration, and multiple speed adjustments. With UL and CSA approvals, the 173973 enhances protection against overcurrents and line voltage surges, offering robust performance within a temperature range of 0 to 55 degrees Celsius in operational environments.