That 80 A holds flat through 50 °C — useful if the breaker sits near other heat sources in a crowded enclosure — then derates to 78 A at 55 °C, 77 A at 60 °C, 75 A at 65 °C, and 74 A at 70 °C. Breaking capacity is specified at four voltage levels: 76 kA at 240 V AC, 53 kA at 415 V AC, 32 kA at 440 V AC, and 7.5 kA at 500 V AC. That 76 kA at 240 V covers high-fault scenarios on 208/240 V secondary distribution; the 53 kA at 415 V is the figure to check for 400 V three-phase panels. The 3VM1080-3ED46-0AA2 measures 101.6 mm wide by 130 mm tall by 70 mm deep — a standard SENTRON 3VM footprint that fits existing panel cutouts and busbar arrangements for this frame size.
The 4-pole configuration suits three-phase-plus-neutral or three-phase-plus-switched-neutral applications. No auxiliary contact blocks are pre-installed (zero CO contacts for auxiliary contacts), but the 3VM frame accepts field-installable accessory kits — order those separately if you need status signaling. The TM210 release is fixed; if your coordination study calls for a different trip curve or adjustable magnetic pickup, step up to the 3VA series which offers interchangeable electronic releases.