The Siemens SENTRON 3VA2463-5KP32-0DA0 is a 3-pole molded case circuit breaker (MCCB) rated for continuous current of 630 A at 40 °C, with a maximum breaking capacity of 187 kA at 240 V AC.
The breaker is rated 630 A at 40 °C ambient; above that, derate progressively — 600 A at 45 °C, 570 A at 50 °C, down to 450 A at 70 °C. If the panel ambient runs 50 °C, the usable current is 570 A, not the nameplate 630 A. Power dissipation at full load is 164.5 W; plan ventilation or spacing to keep the internal temperature rise within the derating curve.
Built-in undervoltage release and communication
It also has a communication function (likely PROFIBUS or PROFINET via a communication module), enabling remote monitoring of trip status, load current, and event logs. The latching endurance is rated at 15,000 operations — mechanical life for the switching mechanism under no-load or low-load conditions.