It carries a breaking capacity of 52.5 kA at 240 V AC, 32 kA at 415 V, 13.6 kA at 440 V, and 7.5 kA at 690 V — so it can clear high-fault currents on the secondary side of a distribution transformer or at a panel main without upstream coordination issues. The 20 A rating holds flat from 40 °C to 50 °C, then derates to 19.2 A at 55 °C and 18 A at 70 °C.
The IP40 front protection means it's splash-safe from the front in a typical enclosed panel; no outdoor or washdown rating. Mechanical endurance is 15,000 operations — that's a standard figure for a fixed-mounted MCCB in a distribution board where it cycles a few times a year, not a motor-starting duty cycle.