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. Its interrupting capacity hits 242 kA at 240 V — that's the headroom you want when the fault current at the service entrance is high and you need the breaker to clear without welding its contacts shut.
What the ratings mean for fit
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.
Panel fit and integration
Dimensions are 105 mm wide, 181 mm tall, 86 mm deep — fits a standard MCCB footprint on DIN rail or panel-mount. The 86 mm depth leaves room behind a 200 mm deep enclosure door for wiring and auxiliary block access. Comes with one auxiliary switch and one trip alarm switch (HP type) built in, so you get status feedback without adding a separate accessory module. Power loss is 10 W maximum at rated load — negligible for thermal budgeting in a multi-breaker panel, but worth noting if you're packing 20 of these in a sealed enclosure. Operating temperature range is -25 °C to 70 °C, storage from -40 °C to 80 °C. That covers most indoor industrial environments including unheated warehouses.