The interrupting capacity is the headline figure here: 121 kA at 240 V AC, 75.6 kA at 415 V AC, 52.5 kA at 440 V AC, and 11.9 kA at both 500 V and 690 V AC. Thermal derating is published across the full operating range: the breaker holds its full 80 A rating up to 50 °C ambient, then steps down to 78 A at 55 °C, 77 A at 60 °C, 75 A at 65 °C, and 74 A at 70 °C. If the panel sits in a non-conditioned space or near heat-generating gear, that derating curve tells you exactly where the continuous-current limit lands without guesswork.
Integration into the panel — footprint and connections
The 3VA1180-4GD42-0AA0 measures 130 mm high, 101.6 mm wide, and 70 mm deep. The 4-pole width (101.6 mm) is the standard 4-module footprint for SENTRON 3VA breakers, so it slots into existing panel layouts without re-drilling the mounting plate. Front-face protection is IP40 — fine for a closed panel, but not rated for washdown environments. Maximum power dissipation is 19.2 W at rated load.