What the interrupting ratings mean for panel coordination
At 415 V the figure drops to 52.5 kA, and at 440 V to 32 kA. These are the values you'd use for series-coordination studies with upstream transformers or downstream feeders.
The 100 A rating holds up to 50 °C ambient; above that it derates to 98 A at 55 °C, 96 A at 60 °C, 94 A at 65 °C, and 91 A at 70 °C. Max power loss is 25 W. Dimensions are 130 mm high, 101.6 mm wide, 70 mm deep — standard for a 4-pole 100 A frame.
