Breaking capacity reaches 187 kA at 240 V AC and 121 kA at 415/440 V — enough to clear a high-fault utility feed without upstream coordination headaches.
This MCCB occupies 138 mm width, 248 mm height, and 110 mm depth on the panel backplate — a standard 3-pole SENTRON 3VA footprint that fits existing busbar and lug layouts. The ETU320 electronic trip unit provides LI (long-time and short-time) protection curves. At 630 A continuous, expect 164.5 W of power loss at full load; account for that heat in the enclosure sizing, especially in a sealed cabinet where derating already applies.