The 3VA2225-7KP32-0CA0: 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 still 6.3 kA at 690 V. That's a lot of fault-interruption muscle for a 250 A frame — it's sized for high-available-fault-current panels where a standard MCCB would cascade upstream. The ETU850 trip unit brings communication capability and an undervoltage release (UVR) as standard, so you can integrate it into a monitored distribution scheme without adding external relays. No auxiliary contacts or ground-fault monitoring on this variant — those are separate add-ons.
Thermal derating and panel fit
Rated continuous current holds at 250 A from 40 °C up to 50 °C ambient, then steps down: 238 A at 55 °C, 225 A at 60 °C, 213 A at 65 °C, and 200 A at 70 °C. If your panel runs hot — say, a packed enclosure with other breakers — factor the 55 °C or 60 °C column into your load schedule. Dimensions: 181 mm high, 105 mm wide, 86 mm deep. That's a standard 3VA2 frame footprint — it'll drop into the same DIN-rail or screw-mount slot as other 3VA2 breakers. No need to re-drill the gland plate if you're swapping within the family. Maximum power loss is 50.5 W — not trivial in a sealed enclosure. Plan for ventilation or a larger cabinet if you're grouping several of these on a bus.