The Siemens SENTRON 3VA2110-5JP32-0AD0 is a 3-pole molded case circuit breaker (MCCB) rated for 100 A continuous current at ambient temperatures from 40 °C all the way up to 70 °C — no derating needed across that span, which is rare and saves headroom calculations on a warm panel.
This MCCB delivers a serious interrupting rating: 187 kA at 240 V, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and still 3.7 kA at 690 V.
Power loss is 10 W maximum, so heat buildup in a sealed cabinet is manageable.
What the continuous rating means in practice
That's a real advantage in a hot industrial enclosure or near a furnace line.