The Siemens SENTRON 3VA2010-8HN32-0AA0 is a 3-pole molded case circuit breaker (MCCB) rated for a continuous current of 100 A across the full ambient range from 40 °C to 70 °C — no derating needed up to that ceiling. Its breaking capacity hits 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 put it in the high-interrupting class for large transformer feeds or bus-tie applications where fault current runs high.
Trip unit and protection
Fitted with an ETU350 electronic overcurrent release — that means adjustable long-time, short-time, instantaneous, and ground-fault pickup, though this variant ships without ground-fault monitoring (the 'without' flag on the version).
Mounting and environment
It's a line-protection version (not a motor-protection or switch-disconnector variant), with no undervoltage release, no voltage trigger, and no communication module onboard — keep that in mind if your BOM expects those accessories.