The Siemens 3VA2463-6HN32-0DD0 is a 3-pole IEC molded-case circuit breaker in the 3VA2 frame, rated 630 A continuous. It carries a class H breaking capacity of 85 kA at 415 V AC — meaning it can safely interrupt fault currents up to that level without upstream fuses or a larger frame, which is the deciding spec for panel fault-withstand coordination. The ETU350 electronic trip unit provides LSI protection: long-time (Ir adjustable 250–630 A), short-time (Isd 1.5–9× Ir), and instantaneous (Ii fixed at 9× In).
Panel integration notes
This breaker mounts in a standard IEC panel or enclosure — the 3VA2 frame is designed for fixed or plug-in installation. The order includes an undervoltage release (208–230 V AC, 50/60 Hz) and three auxiliary switches, so the wiring plan should account for the release coil supply and the aux contact terminations. The nut keeper kit is included for secure bus-bar or cable connections.