What this 3VA1225-6EF42-0HH0 brings to the panel
Breaking capacity is the headline number here: 220 kA at 240 V AC, 154 kA at 415 V, 36 kA at 440 V, and 17 kA at 690 V. It's a workhorse for straightforward line protection where you don't need the configurability of an electronic trip.
Thermal derating and installation context
The continuous current rating holds at 250 A up to 50 °C ambient, then derates to 243.3 A at 55 °C, 236.5 A at 60 °C, 229 A at 65 °C, and 223 A at 70 °C. The trip indicator and voltage trigger are present, so you get local visual status and a remote trip signal via the shunt release. The 4-pole form factor takes up the same width as four single-pole breakers ganged together — plan your enclosure fill accordingly. No undervoltage release, no phase-failure detection, no communication function on this variant; it's a straight line-protection MCCB with the essentials.