What this MCCB does in a panel
The Siemens SENTRON 3VA2116-5JQ32-0BA0 is a 3-pole molded case circuit breaker rated for 160 A continuous, with a flat derating curve from 40 °C through 70 °C — no need to downrate as the panel warms up. It's a line-protection device, meaning it sits at the feeder or main branch, not on a motor circuit with overload class requirements. The 28 W maximum power loss is worth checking against your enclosure thermal budget if you're packing several of these into a sealed cabinet. Breaking capacity is the headline: 187 kA at 240 V, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 3.7 kA at 690 V.
The 105 mm width (4.13 in) for a 3-pole 160 A MCCB is standard for the SENTRON 3VA frame size.