63 A, 4-pole MCCB with ETU550 — line protection for high-fault panels
The Siemens SENTRON 3VA2163-7JP46-0AA0 is a 4-pole molded case circuit breaker rated for 63 A continuous current, designed for line protection in distribution panels. It carries the ETU550 electronic trip unit, which provides adjustable overload and short-circuit protection curves — useful for coordinating with downstream breakers in a selective system.
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. The steep drop at 690 V (3.7 kA) means it is not the right choice for 690 V three-phase systems with significant fault potential — the voltage rating governs the interrupting duty.
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. For a critical-spare holding or a new panel build, the part is sourced and quoted to order against an RFQ through independent distribution; availability and current pricing are confirmed at quote time.
Panel fit and integration notes
Dimensions: 181 mm high, 140 mm wide, 86 mm deep. The 140 mm width on a 4-pole MCCB is standard for the SENTRON 3VA frame.