The Siemens SENTRON 3VA2010-5HN32-0HH0 is a 3-pole molded case circuit breaker (MCCB) rated for 100 A continuous current. It's designed for line protection in distribution panels, meaning it sits upstream protecting feeders and downstream branch circuits, not a specific motor load. The key spec for a sourcing decision here is the breaking capacity: 187 kA at 240 V AC, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 3 kA at 690 V. That 187 kA figure at 240 V tells you this breaker can handle very high available fault currents common on the secondary side of large step-down transformers — it's not a standard 10 kA or 25 kA home-run MCCB. The continuous current rating holds at 100 A across the full operating temperature range from 40 °C up to 70 °C, with no derating needed in a warm panel. That's a solid thermal margin for a 100 A frame. This variant includes a shunt trip (STL) auxiliary release and comes with 2 auxiliary switches plus a trip alarm switch (HQ). That means it can be remotely tripped and can signal its status back to a PLC or annunciator panel — useful in automated lines where you need to know the breaker state without walking the panel.
Physical dimensions: 181 mm high, 105 mm wide, 86 mm deep. That's a standard 3-pole MCCB footprint for a 100 A frame — it will fit existing SENTRON 3VA panel cutouts and busbar arrangements without surprises. Operating temperature range is -25 °C to 70 °C, storage from -40 °C to 80 °C. The max power loss is 13.5 W — negligible for panel thermal calculations but worth noting if you're packing breakers tight in a sealed enclosure.