63 A MCCB with flat thermal rating to 70 °C
The Siemens 3VA2163-5HK32-0BE0 is a SENTRON-series 3-pole molded case circuit breaker rated 63 A continuously from 40 °C through 70 °C ambient — no derating needed across the typical panel temperature range. Interrupting capacity reaches 187 kA at 240 V AC, 121 kA at 415/440 V, 75.6 kA at 500 V, and 3.7 kA at 690 V — the 690 V figure is low enough that this frame is not a primary choice for 690 V main breakers, but the 415 V rating covers most European and Asian industrial distribution buswork.