Breaking capacity is 242 kA at 240 V, 187 kA at 415 V and 440 V, 121 kA at 500 V, and 4.5 kA at 690 V. The 242 kA at 240 V gives headroom for high-fault utility feeds; the sharp drop to 4.5 kA at 690 V means this frame is not sized for 690 V main service — it's a 480 V class breaker. The 250 A continuous rating holds flat from 40 °C to 50 °C, then derates linearly to 213 A at 70 °C.
Integration note
Mounts in a standard MCCB panel cutout. The 3-pole form factor with 105 mm width and 181 mm height matches the SENTRON 3VA family footprint. Trip indicator is not fitted.