The Siemens SENTRON 3VA2116-6HN32-0AF0 is a 3-pole molded case circuit breaker (MCCB) rated 160 A continuous at 40 °C through 70 °C — no derating needed across that span, which simplifies panel thermal calculations. It's designed for line protection, not motor or feeder backup; the interrupting ratings are 242 kA at 240 V, 187 kA at 415 V, and 121 kA at 500 V, so it handles high-fault utility or transformer-fed mains.
The 3-pole design with a trip indicator and a built-in auxiliary switch plus trip alarm switch gives remote status without an add-on module. Power loss is 25.5 W maximum — manageable for enclosure heat budgets.
The 105 mm width matches the standard SENTRON 3VA panel cutout; depth is 86 mm, so it clears shallow backpanels.