What it is and where it sits
The ABB 1SAM151000R1008 is listed as a motor starter accessory within the Contactor & Starter Accessories & Parts family, sitting one tier under Contactors and Starters in the broader Circuit Breakers, Fuses & Protection tree.
Class role in the starter assembly
Accessories in this category typically complete the protection and control stack on a manual motor starter or contactor block — busbars, link modules, terminal shrouds, and auxiliary blocks — so the part number on the BOM is usually the matching variant code for the host starter frame, not a free-standing component. The 1SAM series part number is the ABB-coded accessory matched to the host manual motor starter or contactor family, not a free-standing component.