Interrupting capacity is 75.6 kA at 240 V AC and 52.5 kA at 415 V AC — figures that place it in the high-fault category for commercial and light-industrial mains, where available fault current can exceed 25 kA. The 500 V rated insulation voltage (Ui) confirms it is rated for 480Y/277 V systems common in North American panels.
At 55 °C it derates to 49 A, at 60 °C to 48 A, at 65 °C to 46 A, and at 70 °C to 45 A. For a panel that runs warm — say 55 °C inside the enclosure — the breaker still carries 49 A continuous without nuisance tripping. The maximum power loss is 9.74 W, which is modest for a 50 A frame and keeps internal cabinet heating manageable.
Depth is 70 mm (2.76 in), height 130 mm (5.12 in). Front IP40 protection means it is sealed against tools and fingers but not washdown; install inside a rated enclosure for wet or dusty environments.