Siemens SENTRON 3VA2063-5JQ32-0DL0 is a 3-pole molded case circuit breaker rated 63 A continuous (Iu) with an ETU560 electronic trip unit. It carries a 187 kA interrupting capacity at 240 V and 121 kA at 415 V, so it handles high-fault utility feeds and large motor branch circuits without cascading upstream.
The 63 A continuous rating holds across 40 °C to 50 °C (–), then derates to 60.6 A at 55 °C, 58.3 A at 60 °C, 55.9 A at 65 °C, and 53.6 A at 70 °C (–). If your panel runs hot — say, a packed enclosure next to a motor — you can still pull 53.6 A at 70 °C, which is better than many MCCBs that drop below 50 A at that temperature. The 800 V rated insulation voltage (Ui) covers 480 V and 600 V class systems with headroom. Interrupting capacity steps: 187 kA at 240 V, 121 kA at 415 V and 440 V, 79 kA at 500 V, and 3.4 kA at 690 V (–). At 415 V, 121 kA is well above what most distribution transformers can deliver — you have selectivity headroom for downstream breakers without worrying about the main failing on a bolted fault.
Dimensions are 86 mm deep, 105 mm wide, 181 mm tall (–). That 105 mm width is a standard 3-pole MCCB footprint — it fits a 4-module (approx 140 mm) DIN-rail slot or a direct panel-mount cutout.
The base switch (without accessories) is 3VA2063-5JQ32-0AA0. The integrated auxiliary trip module is 3VA9608-0BB25. If you are replacing an older 3VA2 frame, verify the accessory slot compatibility; the UVR and alarm switches are factory-installed on this variant.