Breaking capacity hits 330 kA at 240 V, 242 kA at 415 V and 440 V, 187 kA at 500 V, and 4.5 kA at 690 V — meaning it clears high-fault scenarios on the distribution side without requiring an upstream fuse.
Derating and thermal headroom
Continuous current holds at 250 A up to 50 °C ambient, then derates linearly: 241 A at 55 °C, 232 A at 60 °C, 222 A at 65 °C, 213 A at 70 °C. Maximum power loss is 50.5 W; factor that into enclosure ventilation if the panel is sealed or high-density.
