That 250 A holds flat through 50 °C — you only start derating above 55 °C, where it drops to 241 A, then 232 A at 60 °C, 222 A at 65 °C, and 213 A at 70 °C. So for most panel environments under 55 °C, you get the full 250 A without having to oversize the frame. Breaking capacity is the headline here: 330 kA at 240 V, 242 kA at 415 V and 440 V, 187 kA at 500 V, and 6.3 kA at 690 V. It's a 3-pole unit (Line protection version) with an undervoltage release (UVR) built in — part of the supplied basic switch 3VA2225-7HL32-0AA0 and integrated auxiliary trip 3VA9608-0BB25.
Rated insulation voltage Ui is 800 V, and operating temperature range is -25 °C to 70 °C, with storage from -40 °C to 80 °C. Mechanical endurance is 20,000 operations (latching endurance).