The Siemens 3VA1463-4GF42-0AA0 is a 4-pole SENTRON molded case circuit breaker rated for 630 A continuous current at 40 °C, with a TM240 thermal-magnetic release. The TM240 designation means the thermal trip element is calibrated for a 630 A frame, and the magnetic instantaneous pickup is fixed at 2400 A (4× In). The interrupting ratings are 121 kA at 240 V AC, 75.6 kA at 415 V and 440 V, 52.5 kA at 500 V, and 11.9 kA at 690 V — so the available fault current at the installation point must be verified against these voltage-specific values.
Above that, it derates linearly: 618 A at 55 °C, 607 A at 60 °C, 595 A at 65 °C, and 583 A at 70 °C.
The breaker measures 184 mm wide, 248 mm high, and 110 mm deep. The 4-pole width of 184 mm (about 7.24 in) means it occupies four 45 mm pole spaces. Verify the gland plate knockout pattern and busbar spacing before committing the panel layout.