The Allen Bradley 1336-PB-SP2E board is a kit that contains a spare part module, specifically a precharge board, which can be used for the replacement of faulty or malfunctioning boards in Allen-Bradley drives. The drives from Allen-Bradley which can use this kit as a spare part include the 1336 PLUS, 1336 IMPACT, 1336 FORCE, and the 1336 PLUS II drives. The 1336-PB-SP2E board is designed for Frame C drives which have output power ratings of X40, 40, 50, and X60 Horsepower. A maximum of one kit is needed for one drive. The function of the precharge PCB is to limit the maximum inrush current which the drive can experience during its startup phase. This helps to safeguard the various drive components from damage and it vastly improves the reliability and working life of the AC drive.

The input voltage rating of drives which can accommodate the 1336-PB-SP2E board is 460 Volts AC. During replacement, the power to the drive must be turned off to protect the working technicians against electric shock. Only experienced technicians should work on the drive. Furthermore, Allen-Bradley recommends that the voltage on the drive bus be allowed to discharge completely before any activity is performed. In addition, the presence of electrostatic discharge (ESD) sensitive parts and assemblies inside the drive necessitates the implementation of necessary safeguards for drive protection. The most important safeguard is the use of a wrist strap with which is grounded by the technicians who are working on the drive. All the drive parts and assemblies should be kept inside suitable containers which are static-shielded when they are not in use.