What this line is
The ABB 1SAM150000R0010 is catalogued as a Contactor & Starter Accessories & Parts item under the broader Circuit Breakers, Fuses & Protection tree, which puts it in the add-on/companion role alongside a starter rather than as a standalone switching device in its own right. Because the part number is an accessory line rather than a complete contactor or breaker, the procurement question is whether the candidate fits the matching ABB starter frame and how it ships against an RFQ, not whether it can carry a motor load on its own.
Where it sits in a panel
Within an ABB starter assembly this category of part typically clips onto or mounts adjacent to the main contactor/breaker to add a function the base unit does not provide on its own — terminals, auxiliaries, or interface hardware — so the on-site question is mechanical fit to the host frame and wiring access to the right terminals rather than standalone performance.
Sourcing posture
With no L* successor named, no drop-in cross-reference is offered; any alternate or second-source candidate has to be confirmed against the host starter's accessory list rather than picked parametrically off this listing.