Allen-Bradley 74101-075-53 is the replacement precharge board (PCB) for the 1336 drive family, identified by the model 1336-PB-SP21B. The 1336-PB-SP21B is a PCB precharge (CB) module used to manage the DC bus precharge sequence in 460V systems, rated for 60–800 HP motors. This cross-reference covers 74101-075-53 and 1336-PB-SP21B, and distributors such as Radwell and Rexel list it as the precharge board for this model. Availability is variable and some catalogs note it as discontinued by the manufacturer.
