What this breaker is and what it does
The ABB 1SDA068122R1 is a 3-pole distribution circuit breaker in the XT4 frame, rated 40 A continuous (In) with a frame rating of 160 A (Iu). It carries the Ekip LS/I trip unit for long-time and short-time protection — so it's a fit for feeder or branch circuits in a panel, not motor duty where you'd need a thermal-magnetic or motor-specific curve.
Key ratings: what they mean for your BOM line
The 40 A rated current (In) sets the continuous load. Rated voltage is 690 V AC, frequency 50/60 Hz.