What this MCCB is and what it carries
The Siemens SENTRON 3VA2110-6HN32-0JL0 is a 3-pole molded case circuit breaker rated for 100 A continuous current, designed for line protection in distribution panels. It carries a shunt trip release (STL) and a full auxiliary switch set: two auxiliary switches, one trip alarm switch, and one electrical alarm switch HQ. The interrupting capacity is 242 kA at 240 VAC, 187 kA at 415 VAC and 440 VAC, 121 kA at 500 VAC, and 3.7 kA at 690 VAC. That 242 kA figure at 240 V means it can safely clear a fault at that level without cascading upstream — relevant for high-fault-capacity service entrances or industrial mains. Rated current holds flat at 100 A across the full ambient range from 40 °C to 70 °C — no derating needed in a warm panel.
Physical fit and panel integration
Dimensions: 181 mm high, 105 mm wide, 86 mm deep. The 105 mm width is the standard 3-pole MCCB footprint for this SENTRON frame size; verify the mounting pattern against your existing busbar or base plate before ordering. Power loss is 10 W maximum — manageable for thermal budgeting inside a closed enclosure, but worth checking if the panel is densely packed.