The Siemens SENTRON 3VA1080-4ED32-0HC0 is a 3-pole molded case circuit breaker rated for 80 A continuous current at 40 °C, with an interrupting capacity of 121 kA at 240 VAC — that figure drops to 75.6 kA at 415 V and 52.5 kA at 440 V, so the available fault current at your service voltage is the number that governs coordination studies.
Current derating and thermal limits
Above that it derates: 78 A at 55 °C, 77 A at 60 °C, 75 A at 65 °C, and 74 A at 70 °C. Maximum power loss is 19.2 W, which matters for enclosure thermal rise calculations in a sealed panel.
Panel fit and auxiliary options
The breaker measures 130 mm high, 76.2 mm wide, and 70 mm deep — a standard 3-pole MCCB footprint that drops onto a DIN rail or mounts directly to a backplate.