What the ratings mean for fit
The Siemens 3VA2463-6JP32-0AE0 is a SENTRON molded case circuit breaker (MCCB) rated for 630 A continuous current at 40 °C, 3-pole construction, designed for line protection in distribution panels. The interrupting capacity varies by system voltage: 242 kA at 240 V, 187 kA at 415 V and 440 V, 121 kA at 500 V, and 9 kA at 690 V — these are the fault currents the breaker can safely clear without damage to upstream gear. The minimum short-circuit breaking capacity is 945 A, and the maximum is 5 670 A, which sets the range of fault currents the internal trip unit responds to. The continuous current rating is temperature-dependent: at 40 °C it carries the full 630 A; at 50 °C it derates to 570 A; at 60 °C to 510 A; and at 70 °C to 450 A. If the breaker lives in a warm enclosure, use the derated value for the BOM line — not the 40 °C figure. Maximum power dissipation is 162 W, which factors into enclosure thermal calculations.
Panel integration and dimensions
The breaker measures 138 mm wide by 248 mm tall by 110 mm deep. It mounts into a standard panel cutout; the 3-pole footprint matches the SENTRON 3VA2 family, so a panel laid out for a 3VA2 frame accepts this unit without re-drilling. The communication function is built in, meaning it can report status and trip events over the SENTRON bus system — no separate add-on module required for basic telemetry.