The Siemens 8US1213-4AQ01 busbar adapter is a 60 mm center-to-center busbar system accessory designed to feed 3VL circuit breakers in VL150X UL CG frames. It uses a TT-profile 60 mm busbar with tubular contacts, and its dimensions are 190 mm in length and 105 mm in width, with a net weight of 968 g. Electrical ratings include UL 240–600 V and 150 A, and IEC 690 V and 160 A. Designed for top/bottom cable entry in UL 508 busbar systems, it helps organize feeders for protective devices in compact switchgear assemblies.
