The Siemens SENTRON 3VA1080-4ED36-0CH0 is a 3-pole molded case circuit breaker (MCCB) rated 80 A at 40 °C, with a breaking capacity of 121 kA at 240 V AC. The unit is 70 mm deep, 76.2 mm wide, and 130 mm tall — fits standard 3-pole MCCB panel cutouts.
Breaking capacity drops as voltage rises: 121 kA at 240 V, 75.6 kA at 415 V, 52.5 kA at 440 V, and 11.9 kA at both 500 V and 690 V.
Thermal derating and continuous current
Rated current holds at 80 A from 40 °C through 50 °C, then derates: 78 A at 55 °C, 77 A at 60 °C, 75 A at 65 °C, 74 A at 70 °C.