The Siemens SENTRON 3VA2110-8HN32-0AA0 is a 3-pole molded case circuit breaker (MCCB) rated for line protection, carrying a continuous current of 100 A across its full operating temperature range from -25 °C to 70 °C without derating. Breaking capacity is 440 kA at 240 V, 330 kA at 415 V and 440 V, 220 kA at 500 V, and 52.5 kA at 690 V — numbers that matter when you're sizing for high-fault installations like transformer secondaries or large motor control centers.
The IP40 front face means it's splash-protected from the panel door side; the rear and sides rely on the enclosure for full sealing. Optional motor drive allows remote closing and opening, which is handy for a breaker in a hard-to-reach section of the cabinet or one integrated into an automatic transfer scheme.