It's built for main or feeder protection in distribution panels, switchboards, and industrial power systems where you need high interrupting capacity — 187 kA at 240 V, 121 kA at 415 V, and still 75.6 kA at 500 V.
Ratings that matter for the BOM line
The 250 A continuous rating holds flat from 40 °C to 50 °C, then derates to 241 A at 55 °C, 232 A at 60 °C, 222 A at 65 °C, and 213 A at 70 °C.
The basic switch assembly is order code 3VA2225-5HL42-0AA0, so if you're stocking spares, that's the internal mechanism that carries the interrupting ratings.
