The 3VA1163-6EF32-0CH0: Breaking capacity hits 220 kA at 240 V and 154 kA at 415 V, which puts it squarely in the high-fault category for industrial main feeders or large sub-distribution boards where available fault current exceeds typical 65 kA or 100 kA MCCB ratings.
Rating so-what and derating curve
The 63 A rating holds flat from 40 °C to 50 °C, then begins a gentle derating: 60.48 A at 55 °C, 59.22 A at 60 °C, 57.96 A at 65 °C, and 56.7 A at 70 °C. In a panel that runs hot — say, 55 °C inside the enclosure — you lose roughly 4 % of headroom, so a continuous load of 58 A is still safe, but you should verify the actual ambient at the breaker mounting point rather than relying on a 40 °C nameplate.
Auxiliary contacts and UVR integration
The integrated auxiliary trip module carries order code 3VA9608-0BB24, which is the factory-matched accessory for this breaker variant. If you need to order a spare UVR or add a shunt trip later, that module code is what the Siemens configurator expects.
Dimensions are 130 mm height, 76.2 mm width, 70 mm depth — a standard 3-pole MCCB footprint that fits most DIN-rail or screw-mount panel layouts.