Line protection MCCB with ETU340 trip unit
The Siemens SENTRON 3VA2163-6HK36-0AA0 is a 3-pole molded case circuit breaker rated for 63 A continuous current, designed for line protection in distribution panels. Interrupting capacity reaches 242 kA at 240 VAC, dropping to 187 kA at 415 V and 440 V, 121 kA at 500 V, and 3.7 kA at 690 V. The continuous current rating holds flat at 63 A across the entire ambient temperature range from 40 °C up to 70 °C — no derating needed as the panel warms, which simplifies panel design and avoids nuisance tripping in a crowded enclosure.
The 3VA2 series is the current-generation SENTRON platform, so replacement concerns are minimal for new builds. No last-time-buy window or phase-out notice is active on this order code.
Dimensions are 105 mm wide, 181 mm high, 86 mm deep — a standard 3-pole MCCB footprint that fits most DIN-rail or panel-mount enclosures without re-drilling. If you need those options, the 3VA2 platform offers them on other order codes within the same frame size.