The Siemens SENTRON 3VA2110-5HL32-0BH0 is a 3-pole molded case circuit breaker (MCCB) rated for 100 A continuous current, with a flat derating curve from 40 °C through 70 °C — no reduction needed across typical panel ambient temperatures. It is designed for line protection in distribution panels and motor control centers, carrying a maximum interrupting capacity of 187 kA at 240 V AC and 121 kA at 415/440 V, dropping to 75.6 kA at 500 V and 3.7 kA at 690 V.
The interrupting ratings tell you the maximum fault current the breaker can safely clear at each voltage level: at 240 V it handles 187 kA, which covers most North American industrial service-entrance faults; at 415/440 V it still clears 121 kA, enough for heavy European distribution. The 86 mm depth, 105 mm width, and 181 mm height (3.39 x 4.13 x 7.13 inches) place it in a compact footprint for a 100 A MCCB — it fits standard panelboard mounting patterns without requiring oversize gutters.