What this MCCB carries — and where it fits
The Siemens SENTRON 3VA2463-5HN32-0AD0 is a 3-pole molded case circuit breaker rated for 630 A continuous at 40 °C, with a 187 kA interrupting capacity at 240 V and 121 kA at 415 V. That interrupting headroom means it can sit upstream in a distribution panel feeding multiple downstream branch breakers and still clear a bolted fault without the arc flashing past the main — selectivity stays intact. The 630 A frame is the real working current for a 40 °C ambient. If the panel runs hotter — say 50 °C inside a non-ventilated enclosure — the continuous rating drops to 593 A, and at 70 °C it's 520 A. That derating curve is the number to use for the BOM, not the 630 A nameplate.
Panel fit and mounting
The breaker measures 138 mm wide, 248 mm tall, and 110 mm deep — a standard SENTRON 3VA frame footprint. Three 110 mm depth means it clears a 120 mm deep enclosure backplate without the rear terminals brushing the gland plate. No special cut-out; mounts on the DIN rail or direct-screw pattern common to the SENTRON family.
Configuration and auxiliaries
This variant ships with three factory-fitted auxiliary switches (HQ type) and no undervoltage release, no ground-fault monitoring, and no communication module. The basic switch is the 3VA2463-5HN32-0AA0. If the panel spec calls for shunt trip or remote signaling, those are add-on accessories, not built in.