The Siemens SENTRON 3VA2110-5MN32-0BA0 is a 3-pole molded case circuit breaker (MCCB) rated for 100 A continuous current across the full 40 °C to 70 °C ambient range — no derating needed up to that ceiling. It's the motor protection variant, meaning the ETU350M electronic release includes phase failure detection and undervoltage release, so it's built for motor branch circuits where you need coordinated protection against single-phasing and brownout conditions.
The interrupting ratings on this breaker are the real story. At 240 V it clears 187 kA — that's utility-grade fault current, typical for large transformer secondaries or industrial service entrances. At 415 V and 440 V it holds 121 kA, and at 500 V it still manages 75.6 kA. The drop to 3.7 kA at 690 V tells you this is a 600 V class frame; don't spec it for 690 V motor circuits unless the available fault current is well under that.