The Siemens SENTRON 3VA2116-6HN32-0HH0 is a 3-pole molded case circuit breaker rated for 160 A continuous current across the full 40 °C to 70 °C ambient range — no derating needed up to that ceiling. Interrupting capacity hits 242 kA at 240 V, 187 kA at 415/440 V, 121 kA at 500 V, and 3.7 kA at 690 V. The line-protection design means it's set up for feeder and main breaker duty, not motor or generator protection.
That's unusual for an MCCB; many competitors start derating above 40 °C. At 690 V the interrupting capacity drops to 3.7 kA — still adequate for most 690 V distribution, but not for high-fault locations at that voltage. Power loss is 25.5 W maximum — useful for thermal budget in a sealed enclosure.
Mounts in a standard panel cutout for this SENTRON frame size. The 105 mm width and 86 mm depth are the critical dimensions for DIN-rail or backplate layout. The shunt trip (STL) auxiliary release requires a separate control signal — wire it through an emergency-stop or remote-trip circuit. No ground-fault monitoring version is included on this order code.