It's a 3-pole unit rated 40 A continuous at 40 °C, with an interrupting capacity of 220 kA at 240 V — that's the number that tells you it can handle high-fault utility feeds or transformer secondaries without cascading failure upstream.
Ratings that matter for the BOM line
Continuous current holds at 40 A from 40 °C up through 50 °C, then derates to 39 A at 55 °C and 60 °C, and 38 A at 65 °C, down to 37 A at 70 °C. That's a shallow derate curve — you don't lose much headroom in a warm enclosure. Interrupting rating drops with voltage: 154 kA at 415 V, 121 kA at 440 V, then a step down to 17 kA at 500 V and 690 V. On a 480 V system you're between the 440 V and 500 V curves — coordination study should use the 17 kA figure at 500 V as the conservative bound.
Built-in accessories and what they mean
The auxiliary switches give you status feedback for PLC or SCADA — one NO/NC pair for breaker position, a second for trip indication if you need it. If you need UVR or ground-fault, you're looking at a different suffix in the 3VA1 family. The basic switch supplied is 3VA11406EF360AA0.