Breaking capacity across voltages — the real-world numbers
Breaking capacity isn't one number; it changes with system voltage. At 415 V and 440 V it's rated 242 kA, at 500 V it drops to 187 kA, and at 690 V it's still a respectable 52.5 kA. The 690 V rating is useful for 600 V class Canadian installations or certain mining applications.
Thermal derating — don't lose capacity in a hot panel
At 55 °C it derates to 96 A, at 60 °C to 94 A, at 65 °C to 92 A, and at 70 °C to 90 A.
Built-in undervoltage release and auxiliary switches
That's common in safety circuits where you want the breaker to drop out on a control-voltage loss. The basic switch assembly is order code 3VA2110-7MS36-0AA0, so if you ever need to replace just the switching mechanism, that's the spare. Mechanical endurance is rated at 20,000 operations.