What the ratings mean for fit
The Siemens SENTRON 3VA2110-5HL36-0KC0 is a 3-pole molded case circuit breaker (MCCB) rated for 100 A continuous current across the full ambient range from 40 °C to 70 °C — no derating needed up to that ceiling. That flat thermal curve simplifies panel design: you size the bus and lugs for a straight 100 A and don't recalc for summer conditions. Breaking capacity is the headline: 187 kA at 240 V, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 3.7 kA at 690 V. At 480 V (common in North American industrial panels) the 415 V figure of 121 kA is the closest published rating — that's well above typical available fault current for most distribution boards, so this breaker gives generous SCCR headroom without needing a current-limiting upstream device. The breaker is designed for line protection (cable and busbar feeder protection), not motor or generator protection. It ships with a shunt trip (STL) release and two auxiliary switches (HQ) factory-installed, so you get remote trip capability and status feedback without extra wiring in the field.
Panel integration and mounting
Physical footprint: 105 mm wide, 181 mm high, 86 mm deep — a standard 3-pole MCCB envelope that fits most DIN-rail or panel-mount distribution boards. The 105 mm width matches the typical 3-pole SENTRON 3VA family spacing, so a panel designed for a 3VA2116 or 3VA1110 will accept this unit without re-drilling or busbar rework. Power loss is 10 W maximum at rated current — negligible for thermal management in a ventilated enclosure, but worth noting if the breaker is in a sealed, high-density cabinet with multiple devices side-by-side. Operating temperature range is -25 °C to 70 °C; storage range is -40 °C to 80 °C. The storage minimum matters for unheated warehouses in cold climates — the breaker can sit at -40 °C without damage, but must be at -25 °C or above before energizing.