Line protection breaker with a 220 kA interrupting floor
Its interrupting capacity hits 220 kA at 240 V AC, 154 kA at 415 V, 121 kA at 440 V, and still holds 17 kA at 690 V — so it handles high-fault utility feeds without cascading upstream.
This breaker carries its full 25 A rating from 40 °C up to 50 °C ambient, then derates linearly to 22.5 A at 70 °C — useful if the MCCB sits near transformers or drives inside a sealed enclosure. Dimensions are 130 mm high, 76.2 mm wide, 70 mm deep, so it fits standard SENTRON 3VA panel footprints and accepts the same busbar and accessory system.