The Siemens SENTRON 3VA2110-5HN36-0KC0 is a 3-pole molded case circuit breaker rated for 100 A continuous at 40 °C, with a 187 kA interrupting capacity at 240 VAC. The interrupting curve drops to 121 kA at 415 V and 75.6 kA at 500 V, with 3.7 kA at 690 V — so the high-fault rating at 240 V is the headline, but the 415 V figure is what governs most European industrial panels.
At 415 V the 121 kA still covers most industrial service-entrance applications. The sharp drop to 3.7 kA at 690 V is typical for a 100 A frame: at that voltage the arc extinction is harder, so the breaker is really a 690 V device for lower-fault locations, not a main.
Verify the gland-plate knockout matches before cutting the backplate.
Built-in accessories
The shunt trip coil draws power only during the trip event — no continuous hold current. The auxiliary switches are rated for the control circuit voltage; verify the switching capacity against your 24 VDC or 120 VAC load before wiring.
Temperature derating and power loss
Maximum power loss is 10 W at rated current, which is modest for a 100 A frame; you can pack several in a row without forced ventilation.