The Siemens 3VA2580-6HN32-0BH0 is a SENTRON molded case circuit breaker (MCCB) rated for 800 A continuous current at 40 °C, holding that rating flat through 60 °C before derating to 767 A at 65 °C and 703 A at 70 °C. That thermal profile means you can pack it into a warm enclosure — say a motor control center with several breakers side by side — without losing headroom until the ambient pushes past 65 °C. Breaking capacity is 242 kA at 240 V, 187 kA at 415 V, and 74 kA at 690 V. The 3-pole design and line-protection version mean it's built for feeder duty, not motor or generator protection. The electronic trip unit is an ETU350, which gives you adjustable long-time pickup (Ir) from 0.5 to 1.0 x In — so you can set the continuous pickup anywhere from 400 A to 800 A in steps — plus adjustable short-time (tsd 0.04–0.4 s) and instantaneous (Ii) up to 8000 A. That adjustability makes it useful for coordinating with downstream breakers in a selective scheme; you can dial in the short-time delay so a feeder fault clears before this main trips.
Panel fit and physical integration
Dimensions are 320 mm high, 210 mm wide, and 120 mm deep.