The Siemens 3VA2110-7MS32-0BA0 is a SENTRON molded case circuit breaker (MCCB) in the starter protection version, rated 100 A continuous current (Iu) and carrying a 330 kA breaking capacity at 240 V — that's the short-circuit current it can safely interrupt at that voltage level, sized for high-fault installations like transformer secondaries or large motor control centers. At 415 V and 440 V it still holds 242 kA, and at 690 V it drops to 52.5 kA, which still covers most industrial service-entrance requirements. The thermal derating curve is flat from 40 °C to 50 °C — still 100 A — then tapers to 90 A at 70 °C.
Footprint is 105 mm wide, 181 mm tall, 86 mm deep — standard SENTRON 3VA2 frame size. Mounts on a DIN rail or direct panel; the 86 mm depth leaves room behind a 200 mm deep enclosure door for wiring and the auxiliary trip module (3VA9608-0BB11) that ships with this variant. No auxiliary contact block is included, so if you need status feedback to a PLC, order a separate 3VA9 auxiliary switch.