The Siemens 3VA1463-6EF42-0AA0-ZD00 is a 4-pole IEC frame 630 circuit breaker with class H breaking capacity — Icu rated 70 kA at 415 V. That rating means it can safely interrupt fault currents up to 70 kA without upstream series protection, which is the spec that decides whether this breaker clears a high-fault panel or needs a current-limiting upstream device. The thermal-magnetic TM240 trip unit gives overload protection adjustable from 440 A to 630 A (Ir) and short-circuit pickup (Ii) from 4 to 8 times In. The N conductor is unprotected; this is a 3-pole + N configuration where the neutral is not switched or monitored. The nut keeper kit is included for DC Power OEM builds in China — a region-specific accessory that simplifies panel wiring on captive hardware.
Deployment Context
This breaker mounts on a standard DIN rail or panel-mount base in an IEC enclosure. The 630 A frame size and 4-pole footprint mean it occupies a full-width panel position — plan for adequate heat dissipation and cable bending radius around the terminals. The nut keeper kit is a small but useful detail for OEMs building DC Power cabinets in China: it keeps the mounting hardware captive during assembly, reducing dropped-fastener delays on the line.