The Siemens SENTRON 3VA2116-6HN32-0AD0 is a 3-pole molded case circuit breaker (MCCB) rated for 160 A continuous current across its full operating temperature range of -25 °C to 70 °C — no derating needed from 40 °C through 70 °C, which simplifies panel design in warm enclosures. The unit is designed as a line-protection device (not motor or feeder protection), with three HQ auxiliary switches integrated and no undervoltage release, ground-fault monitoring, or communication function — keep that in mind when specifying for a coordinated distribution scheme.
Sizing and thermal performance
That means you can run this breaker at full nameplate current inside a hot panel without recalculating the wire or coordination study. Rated insulation voltage is 800 V, and the maximum breaking capacity at 690 V is still 3.7 kA — enough for backup protection on a 690 V drive line, but not a primary fault interrupter at that voltage. Maximum power loss is 25.5 W — modest for a 160 A frame, so heat buildup in a multi-breaker lineup stays manageable without forced ventilation.