Its interrupting capacity hits 187 kA at 240 V and 121 kA at 415 V and 440 V, which gives you headroom for high-fault installations where the available short-circuit current is substantial.
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. That's a 4-pole frame in a standard MCCB envelope — fits most DIN-rail or panel-mount layouts without surprises. Max power dissipation is 48 W, so factor that into your enclosure thermal budget.
Breaking capacity across voltage levels
This MCCB's interrupting capacity drops as system voltage rises: 187 kA at 240 V, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 4.5 kA at 690 V.