The 80 A rating holds continuously at 40 °C ambient; per the datasheet, it derates to 74 A at 70 °C, so the full 80 A is only valid below 50 °C. The interrupting ratings are the key selection parameter. At 240 V it interrupts 121 kA; at 415 V, 75.6 kA; at 440 V, 52.5 kA; at 500 V and 690 V, 11.9 kA. The drop to 11.9 kA at 500 V and 690 V is a hard constraint: if your system runs at 690 V, verify the available fault current stays under that limit, or you need a current-limiting upstream device.
The 3VA1180-4EF32-0AG0 measures 130 mm high, 76.2 mm wide, and 70 mm deep. The 76.2 mm width (3 inches) is a standard 3-pole MCCB footprint; it occupies three 25.4 mm module positions on a DIN rail or mounting plate. The auxiliary switch configuration is 1 auxiliary switch plus 1 trip alarm switch, factory-fitted, so you get a remote status contact and a separate alarm contact without adding an external module.
Maximum power loss is 19.2 W — relevant for thermal calculations in a sealed enclosure. The trip indicator is present, giving a visual flag after a fault trip.