The Siemens SENTRON 3VA2580-6HN32-0BC0 is a 3-pole molded case circuit breaker rated for 800 A continuous current, with a breaking capacity of 242 kA at 240 V, 187 kA at 415 V, and 74 kA at 690 V. It carries the ETU350 electronic trip unit, adjustable for long-time (tr) and short-time (tsd) delays, and instantaneous pickup (li) up to 8000 A. The front face is IP40 rated, suitable for panel-mount installations where splash protection is not required.
The 800 A rating holds flat from 40 °C through 60 °C, then derates to 767 A at 65 °C and 703 A at 70 °C. At 690 V it still handles 74 kA, which covers most industrial line-to-line faults on 600 V class systems.
Physical integration
Dimensions: 210 mm wide, 320 mm high, 120 mm deep. The 120 mm depth is the body depth behind the panel — verify clearance to the rear wall or bus bars.