The 3VA1110-4GE46-0AA0: Breaking capacity climbs with system voltage: 121 kA at 240 V, 75.6 kA at 415 V, 52.5 kA at 440 V, and holds 11.9 kA all the way up to 690 V. That gives you selectivity headroom downstream without over-speccing the main.
Thermal derating and panel fit
Rated 100 A up to 50 °C ambient; above that it steps down: 98 A at 55 °C, 96 A at 60 °C, 94 A at 65 °C, 91 A at 70 °C. That curve matters if this breaker sits in a crowded enclosure or near heat-generating gear — the 70 °C figure is the operating maximum, not a storage limit. Footprint is 101.6 mm wide by 130 mm tall by 70 mm deep — a standard 4-pole MCCB slot on the DIN rail or panel-mount plate. IP40 on the front face keeps dust out of the mechanism; the rest of the breaker is open to the enclosure air for heat shedding.
Lifecycle and sourcing
The 100 % N-conductor protection design means the neutral pole is fully rated — not a switched-neutral or reduced-section neutral. That's important for panels feeding non-linear loads or where harmonic currents might load the neutral. Compliance documentation (RoHS, REACH, IEC) is standard with the Siemens SENTRON family.