What the line is
The ABB 1SAM250000R1010 sits on the Contactor & Starter Accessories & Parts line under Circuit Breakers, Fuses & Protection, catalogued as a thermal-magnetic device from the ABB 1SAM series.
Where this class gets used
Thermal-magnetic contactor/starter accessories of this ABB family are fitted alongside manual motor starters and short-circuit protection on panel builds, carrying the trip element that reacts to both sustained overcurrent and instantaneous fault levels. The ABB 1SAM prefix marks it as part of the motor-protection accessory set, so it slots into a starter assembly where the host manual motor starter defines the frame and current class.