Three poles, rated operational voltage 690 V AC, and a maximum power loss of 19 W at full load.
This MCCB delivers 76 kA at 240 V AC, 53 kA at 415 V AC, 32 kA at 440 V AC, and 12 kA at 500 V AC. For a 415 V panel with a prospective short-circuit current of, say, 40 kA, this breaker has headroom.
Thermal derating — it's not 80 A everywhere
At 55 °C it derates to 78 A, at 60 °C to 77 A, at 65 °C to 75 A, and at 70 °C to 74 A. Plan your load at the actual cabinet ambient, not the 40 °C number.
Panel fit and environment
That 3-inch width per pole is standard for this class of MCCB — it fits the typical DIN-rail or panel-mount footprint without surprises.
