Siemens SENTRON 3VA1080-3ED36-0CA0 — 80 A MCCB with Undervoltage Release
Breaking capacity reaches 75.6 kA at 240 V, 52.5 kA at 415 V, and 32 kA at 440 V, with a 7.5 kA floor at 500 V and 690 V. Rated current holds flat at 80 A from 40 °C through 50 °C, then derates to 78 A at 55 °C, 77 A at 60 °C, 75 A at 65 °C, and 74 A at 70 °C.
The breaker measures 130 mm high, 76.2 mm wide, and 70 mm deep — a 3-pole footprint that fits standard Siemens SENTRON mounting plates and busbar systems. Depth of 70 mm (2.76 in) leaves room for rear-connected busbars in a 200 mm-deep enclosure.