The Siemens 3VA2163-0MQ32-0AA0 is a SENTRON 3VA2 molded case circuit breaker (MCCB) designed specifically for motor protection, carrying a 63 A continuous current rating that holds flat from 40 °C through 70 °C — no derating needed across the typical panel ambient range. That 63 A is the rated continuous current (, –), so it handles a full-load motor current up to that value without nuisance tripping on a warm cabinet floor. The ETU860M electronic trip unit gives you adjustable trip classes: 10A, 10/10E, 20/20E, and 30/30E. That range covers everything from fast-clearing on short-cyclic loads (class 10A) to slower curves for high-inertia starts (class 30/30E). Phase failure detection and a ground-fault monitoring version using summation current formation on the L-conductor are built in — the breaker watches for a lost phase or leakage path without needing an external relay. The 690 V rating covers the higher-voltage distribution side where fault currents are lower but arc energy is greater.
Dimensions: 86 mm depth, 105 mm width, 181 mm height (–).