Its interrupting capacity reaches 187 kA at 240 V AC and holds 121 kA at both 415 V and 440 V, then drops to 75.6 kA at 500 V and 4.5 kA at 690 V — meaning it handles high-fault scenarios at common low-voltage levels but needs selectivity review above 500 V. Thermal derating is modest: the breaker holds its full 250 A rating up to 50 °C ambient, then steps down to 241 A at 55 °C, 232 A at 60 °C, 222 A at 65 °C, and 213 A at 70 °C — so in a warm enclosure you lose about 15% at the top of the operating range.
Physical fit and integrated accessories
Ships with a factory-fitted auxiliary switch and trip alarm switch (HQ configuration), so you get remote status and fault indication without adding an accessory module. The basic switch variant is order code 3VA2225-5HL32-0AA0 — this -0AF0 suffix adds the auxiliary/trip alarm package.
Maximum power loss is 48 W, which matters for thermal budgeting inside the enclosure — factor that into your panel heat calculation alongside the derating curve.