The Siemens SENTRON 3VA2110-6HN36-0AG0 is a 3-pole molded case circuit breaker rated for 100 A continuous current, built for line protection in distribution panels.
The 100 A rating holds flat from 40 °C up to 70 °C ambient — no derating curve to chase across the panel temperature gradient. That simplifies BOM math when the breaker lives next to a drive or transformer that pushes enclosure temps. Rated insulation voltage is 800 V, so it's comfortable on 480 V and 600 V class systems with margin. Interrupting capacity steps down as voltage climbs: 242 kA at 240 V, 187 kA at 415/440 V, 121 kA at 500 V, and 3.7 kA at 690 V. The 690 V number looks low, but that's typical for a 100 A frame at that voltage — if your system runs 690 V and fault current exceeds 3.7 kA, you need a larger frame or a current-limiting upstream device.
Dimensions are 105 mm wide, 181 mm tall, 86 mm deep — fits a standard MCCB footprint on DIN rail or panel-mount. Operating temperature range is -25 °C to 70 °C, storage from -40 °C to 80 °C.