Breaking capacity runs from 440 kA at 240 V through 330 kA at 415/440 V, 220 kA at 500 V, and 52.5 kA at 690 V, so it handles high-fault utility feeds and transformer secondaries without cascading upstream. The ETU330 is a basic electronic trip unit — no communication module, no voltage trigger, no undervoltage release on this variant. Ground-fault monitoring uses summation current formation on the L-conductor, so it picks up residual current without a separate GFCI module. The front carries IP40 protection, meaning it's splash-resistant in a closed panel but not washdown-rated.
Footprint and panel fit
At 86 mm deep, 105 mm wide, and 181 mm tall, this 3-pole MCCB fits the standard SENTRON 3VA2 mounting footprint. The optional motor drive (product extension available) adds length but stays within the same mounting hole pattern.