What this part is
The ABB 1SBL141001R8101 is an electrical contactor sold under the ASEA BROWN BOVERI designation, filed in the Contactors and Starters category as a switching device for control-panel duty. Functionally this class of device is used to switch motor and resistive loads inside a control panel — coil-driven, mechanical-pole set, with auxiliary contacts wired to the control circuit — so the procurement decision is governed by the coil voltage, contact rating, and auxiliary configuration rather than the panel-side footprint.