63 A, 4-pole MCCB with ETU550 — line protection for high-fault panels
Breaking capacity that covers high-fault service entrances
Rated breaking capacity reaches 330 kA at 240 V, dropping to 242 kA at 415 V and 440 V, 187 kA at 500 V, and 3.7 kA at 690 V. That 330 kA figure at 240 V puts this breaker squarely in the class for high-fault utility service entrances or large transformer secondaries where fault current can exceed 200 kA.
Active production, quoted to order
Lifecycle status is current — this is an active catalog item, not a phase-out or NRND part. No successor has been announced.
The 140 mm width on a 4-pole MCCB is standard for the SENTRON 3VA frame.