Allen-Bradley SK-R1-BP1 Backplane Interface Board

The SK-R1-BP1 Backplane Interface Kit from Allen-Bradley is the official replacement backplane interface circuit board for PowerFlex 750 drives. It is designed for PF750 Series drives operating at 400–690 V and is compatible with PF750 frames of all sizes, making it suitable for a wide range of installations. This kit serves as the Backplane Interface Circuit Board Replacement SK-R1-BP1 for PF750 and is documented in PF750 spare parts literature as the dedicated backplane interface component for this family of drives. When performing maintenance or upgrades on PF750 equipment, technicians replace the backplane interface board with SK-R1-BP1 to restore the drive’s backplane interface functionality. The part is referenced in Rockwell Automation PF750 installation and spare parts documentation as the Backplane Interface Circuit Board Replacement SK-R1-BP1, confirming its official status as the sanctioned substitute part for this component in PF750 drives.