The interrupting capacity hits 330 kA at 240 V, 242 kA at 415 V and 440 V, 187 kA at 500 V, and 3 kA at 690 V — so it handles high-fault utility feeds and transformer secondaries without cascading upstream.
The ETU320 electronic trip gives adjustable overload and short-circuit protection, which matters when coordinating with downstream feeders or motor starters.
Integration notes
Mounts in a standard MCCB cutout on a panel or switchboard. If you need those functions, this isn't the build; if you just need a reliable 63 A main or feeder with high interrupt capacity, it's a clean fit.