What the ratings mean for your panel
The Siemens SENTRON 3VA2110-6HN32-0CA0 is a 3-pole molded case circuit breaker (MCCB) rated for 100 A continuous current at ambient temperatures up to 50 °C without derating — above that it steps down to 96.25 A at 55 °C and 85 A at 70 °C, so if your panel runs hot, size the load against the thermal curve, not the nameplate. The ETU350 electronic trip unit handles the overcurrent protection; there's no communication module, no phase-failure detection, and no ground-fault monitoring built in — this is a straightforward line-protection breaker, not a multifunction power monitor. The 242 kA breaking capacity at 240 V (187 kA at 415 V) means it can interrupt very high fault currents without upstream cascading, which is what you need for a main or large feeder in a high-capacity distribution board. Mounting dimensions are 105 mm wide by 181 mm tall by 86 mm deep — standard SENTRON 3VA2 footprint for a 100 A frame. The breaker ships with an undervoltage release (UVR) fitted as standard, part 3VA9608-0BB24, and the base switch is the 3VA2110-6HN32-0AA0. No auxiliary contacts or trip indicator come on this variant, so if you need remote status feedback, plan for an add-on auxiliary switch block.
Integration notes for the panel builder
The 105 mm width matches the standard 3-pole MCCB footprint on a DIN rail or mounting plate. The 86 mm depth leaves clearance for rear-access busbars and cable lugs — no tight squeeze in a 200 mm deep enclosure. The ETU350 trip unit is field-configurable for long-time, short-time, instantaneous, and ground-fault pickup levels (though ground-fault monitoring isn't fitted on this variant, the trip unit supports it if you add the module). Power loss is 12.5 W maximum, so ventilation in a sealed enclosure is advisable if you're grouping several breakers.