The Siemens SENTRON 3VA2110-6HN36-0BL0 is a 3-pole molded case circuit breaker (MCCB) rated for 100 A continuous current across the full ambient range from 40 °C to 70 °C — no derating needed in a warm panel. Its interrupting capacity hits 242 kA at 240 V, 187 kA at 415/440 V, and still holds 121 kA at 500 V, which puts it in the high-fault tier for industrial switchboards.
That matters when the breaker sits next to a hot transformer or in a non-ventilated enclosure. The 242 kA at 240 V is the SCCR you can count on for fault coordination upstream; at 690 V it drops to 3.7 kA, so verify the available fault current if you're feeding a 690 V bus. The 3-pole design with line protection means it's set up for feeder or main breaker duty, not motor protection — no overload relay curve inside.
Built-in auxiliary and release options
The alarm switches give remote indication of trip vs. normal state, which saves a panel builder from adding separate monitoring relays.