The Siemens SENTRON 3VA2463-5KP32-0AD0 is a 3-pole molded case circuit breaker (MCCB) rated for 630 A continuous current at 40 °C, sized for line protection in distribution panels. Its breaking capacity reaches 187 kA at 240 V and 121 kA at 415 V, delivering the fault-interrupting headroom needed for high-fault installations where a standard MCCB would cascade upstream. This breaker carries communication and measurement functions, so it integrates into a monitored power distribution scheme without an add-on module. The 162 W maximum power loss matters for enclosure thermal design — at full load, that heat stays inside the panel, so verify your cabinet's dissipation budget against the rating.
Breaking capacity and selectivity
The 3VA2463-5KP32-0AD0 delivers 187 kA at 240 V, 121 kA at 415 V, 75.6 kA at 500 V, and 9 kA at 690 V. For a site electrical engineer coordinating a distribution board, the 121 kA at 415 V is the number that governs selectivity with downstream breakers — that SCCR lets you place this as the main or tie breaker in a panel fed from a transformer with high fault current, keeping a fault from taking the whole board dark. The continuous current derates from 630 A at 40 °C down to 450 A at 70 °C ambient. If this breaker lands in a non-climate-controlled enclosure that hits 55 °C in summer, the usable rating drops to 540 A — factor that into your load schedule before committing the BOM line.
Mounting and integration
Dimensions are 248 mm height, 138 mm width, 110 mm depth. The 138 mm width is the standard 3-pole MCCB footprint. The base switch variant is 3VA2463-5KP32-0AA0; this order code adds three auxiliary switches (HQ type) for remote status indication. If your panel uses a PLC to monitor breaker position, those auxiliary contacts close the loop without a separate limit switch block.