The Siemens SENTRON 3VA1080-2ED36-0HC0 is a 3-pole molded case circuit breaker (MCCB) sized for line protection in distribution panels. Rated 80 A at 40 °C ambient, it delivers 52.5 kA breaking capacity at 240 V and still holds 32 kA at 415 V — solid headroom for industrial service-entrance or feeder duty where fault current runs high.
Breaking capacity and thermal curve
At 440 V the interrupting rating is 13.6 kA, and at 500 V and 690 V it holds 7.5 kA — that covers most 480Y/277 V and 600 V industrial systems in North America and 690 V European grids. The thermal derating stays flat at 80 A from 40 °C up to 50 °C, then drops only to 74 A at 70 °C; you don't lose much frame in a warm enclosure.
Built-in accessories
Factory-fitted with a shunt trip (STL) release and two HQ auxiliary switches — no field retrofitting needed for remote trip or status feedback. The rated insulation voltage is 800 V, and total power loss at rated current is 19.2 W, so it runs cool enough for dense panel layouts.