The Siemens SENTRON 3VA2110-5HN36-0JL0 is a 3-pole molded case circuit breaker (MCCB) rated for 100 A continuous current at up to 70 °C ambient. It's designed for line protection — the main feed in a distribution panel, not motor branch-circuit protection. Breaking capacity reaches 187 kA at 240 V AC and 121 kA at 415/440 V, dropping to 75.6 kA at 500 V and 3.7 kA at 690 V. That 187 kA at 240 V is a high-interrupting rating for a 100 A frame; it handles fault currents in high-capacity transformer-fed panels without cascading upstream.
Fit and integration
Dimensions are 181 mm high, 105 mm wide, 86 mm deep — a standard SENTRON 3VA2 fixed-breaker footprint. Mounts on a DIN rail or direct panel-mount via the base. The 105 mm width (about 4.13 in) is the 3-pole frame; it occupies three 18 mm module spaces if you're thinking of DIN-rail layout. Shunt trip (STL) is built in, plus two auxiliary switches, one trip alarm switch, and one electrical alarm switch — all pre-configured from the factory. No undervoltage release on this variant. The 10 W max power loss is modest; no forced cooling needed in a ventilated enclosure.