Breaking capacity hits 220 kA at 240 VAC, dropping to 154 kA at 415 V and 121 kA at 440 V, so it handles high-fault utility feeds without cascading upstream. Insulation voltage rated at 800 V, which gives headroom for 480/600 V systems.
At 240 V you get 220 kA SCCR — that's utility-grade fault handling for service entrance or large subfeeds. Thermal derating holds 20 A flat from 40 °C through 55 °C; at 70 °C it's still 19 A, so no panic in a warm enclosure.
Auxiliaries and releases
The auxiliary switch tracks the breaker position; the trip alarm signals only on a fault trip, not manual open — useful for alarm annunciation in critical feeders. The basic switch inside is order code 3VA11206GF460AA0, which is the replaceable core if the mechanism wears.