The Siemens SENTRON 3VA2216-5MN32-0DC0 is a 3-pole molded case circuit breaker (MCCB) rated for 160 A continuous current across the full ambient range from 40 °C to 70 °C — no derating needed up to that ceiling. The interrupting capacity reaches 187 kA at 240 V, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 4.5 kA at 690 V, so it handles high-fault utility feeds and transformer-coupled downstream faults without cascading upstream. The basic switch variant is 3VA2216-5MN32-0AA0; this order code adds the undervoltage release and two HQ auxiliary switches.
The interrupting ratings tell you the maximum fault current the breaker can safely clear at each system voltage — at 240 V it handles 187 kA, which covers most North American 277/480 V panelboard bus faults; at 690 V the 4.5 kA rating limits it to lower-fault installations.
Integration notes
Mounts in a standard SENTRON 3VA panel cutout — 105 mm width per pole plus clearance for the auxiliary switch wiring.