Rating and fit for the panel
The Siemens 3VA1163-5GF46-0AA0 is a SENTRON molded case circuit breaker rated for 63 A continuous current at 40 °C, with no derating needed up to 50 °C — it holds 63 A flat through that range. Breaking capacity is the headline number: 187 kA at 240 V, 121 kA at 415 V, 75.6 kA at 440 V, and 17 kA at 500 V and 690 V. Four poles with 100% N-conductor protection (not reduced neutral), so it's suited for three-phase plus neutral panels where the neutral is loaded.
Integration into the enclosure
Dimensions: 130 mm height, 101.6 mm width, 70 mm depth — fits standard 4-pole MCCB footprints in a 200 mm deep enclosure. If you need aux contacts or shunt trip, those are add-on accessories from the 3VA range, not integrated here.
