Its breaking capacity reaches 242 kA at 240 V AC, 187 kA at 415/440 V, 121 kA at 500 V, and 4.5 kA at 690 V — meaning it can safely interrupt fault currents across a wide voltage range without cascading upstream.
Sizing and thermal performance
Rated 250 A at 40, 45, and 50 °C ambient, the breaker holds full ampacity through 50 °C. Above that it derates linearly: 241 A at 55 °C, 232 A at 60 °C, 222 A at 65 °C, and 213 A at 70 °C. Maximum power loss is 50.5 W, which factors into enclosure thermal calculations.
The two HQ auxiliary switches and the undervoltage release are factory-fitted, so you do not need to order them separately or open the cover. The base switch variant is 3VA2225-6HN32-0AA0; the -0CC0 suffix adds the UVR and aux switches as a configured assembly.