The Siemens 3VA1110-6EF36-0JH0 is a SENTRON 3-pole molded case circuit breaker (MCCB) rated 100 A at 40 °C, with a maximum breaking capacity of 220 kA at 240 V. It's designed for line protection duty — the core job of an MCCB in a distribution panel: clear high fault currents upstream of branch circuits without cascading failures.
The 100 A rating holds flat from 40 °C to 50 °C, then derates gradually to 91 A at 70 °C. The 220 kA at 240 V is the high-end interrupting rating; at 415 V it's still 154 kA, and at 690 V it drops to 17 kA. For most 400 V-class industrial panels, the 154 kA figure is what you coordinate against downstream breakers.
Built-in accessory set
That means you get status feedback (open/closed), a separate alarm contact on trip, and remote shutdown capability — all without adding external relay logic.
Width is 76.2 mm (3 in), depth 70 mm, height 130 mm. The 70 mm depth keeps it inside a 200 mm shallow enclosure without crowding the gland plate.