The ABB 1SBL176001R2122 is a three-pole electrical contactor in the Contactors and Starters line, listed under ABB part number 1SBL176001R2122. It's a current-production part, so it's still in the active catalog for new builds and replacement duty.
As a three-pole contactor in the ABB contactor family, the 1SBL176001R2122 mounts in the standard DIN-rail footprint common to control panels. Verify the coil voltage and auxiliary contact configuration against your existing circuit before wiring — the terminal layout follows the ABB pole-spacing convention.