The Siemens 3VA2463-6KP32-0AA0 is a 3-pole SENTRON molded case circuit breaker rated for 630 A continuous current at 40 °C, with an ETU850 electronic trip unit that is adjustable between 945 A and 5 670 A — that is 1.5x to 9x the continuous rating, giving you selectivity headroom for feeder or main breaker duty in a 480 V or 600 V distribution panel. The interrupting capacity tells the real story for fault coordination: 242 kA at 240 V, 187 kA at 415 V and 440 V, 121 kA at 500 V, and 9 kA at 690 V. At 480 V (common in North American industrial plants) the curve interpolates between the 440 V and 500 V figures — still well above what most service-entrance transformers can deliver, so it will hold its SCCR without cascading upstream. Thermal derating is published per the datasheet: 630 A at 40 °C, 600 A at 45 °C, 570 A at 50 °C, 540 A at 55 °C, 510 A at 60 °C, 480 A at 65 °C, and 450 A at 70 °C. The ETU850 trip unit includes a communication function, which means it can report status and fault events over the SENTRON bus system — useful for a plant-wide power monitoring scheme where you want to know which breaker tripped without walking the panel line.
Panel integration — dimensions and mounting
The breaker measures 110 mm deep, 138 mm wide, and 248 mm tall. Maximum power loss is 162 W at rated current — that heat has to be dissipated inside the enclosure. If the panel is sealed or densely packed, check the thermal derating curve above 40 °C ambient to avoid nuisance tripping.
Delta against a common sibling — 3VA2116-5JP32-0AE0
The 3VA2116-5JP32-0AE0 is a smaller-frame 3VA2 breaker with a lower continuous rating and a different trip unit. The 3VA2463-6KP32-0AA0 carries 630 A continuous versus the 3VA2116's lower rating, and its ETU850 electronic trip offers adjustable long-time, short-time, instantaneous, and ground-fault protection with communication — the 3VA2116 typically uses a thermal-magnetic or simpler electronic trip without comms. If the BOM calls for 630 A feeder protection with monitoring capability, the 3VA2463 is the correct frame; the 3VA2116 will not physically fit the same bus bars or handle the same fault current.