The Siemens 3VA2110-5JQ32-0HC0 is a 3-pole SENTRON molded case circuit breaker (MCCB) rated for 100 A continuous at 40 °C, with an adjustable thermal-magnetic trip unit covering 20 A to 100 A full-scale.
Dimensions are 181 mm high, 105 mm wide, 86 mm deep — a standard 3-pole MCCB footprint for a SENTRON 3VA frame. The shunt trip (STL) and two auxiliary switches (HQ) are factory-fitted, so you don't lose a slot in the panel for add-on modules. Power loss is max 10 W, negligible for enclosure heat rise.
