What this MCCB brings to a panel
That's the kind of flexibility that saves a panel builder time during commissioning. That's a standard safety feature for motor circuits where you don't want automatic restart after a power dip.
At 240 V AC, this MCCB interrupts faults up to 187 kA. At 415 V and 440 V, it holds at 121 kA; at 500 V it drops to 79 kA; at 690 V it's 4.25 kA. That steep derate above 500 V is normal for this frame size — the arc extinction physics changes at higher voltage. For a 480 V panel (common in North America), you're looking at the 121 kA rating at 440 V, which covers most industrial service-entrance requirements.
Thermal performance in a hot enclosure
Above that, it derates: 60.6375 A at 55 °C, 58.275 A at 60 °C, 55.9125 A at 65 °C, and 53.55 A at 70 °C. Out here in the grease, if your panel sits near hot bearings or a motor, that 70 °C figure matters — you lose nearly 10 A from the nameplate rating. Plan your load accordingly. Maximum power loss is 6.5 W, which is modest for a 63 A frame. That keeps the heat rise inside the enclosure manageable, even in a packed panel.
The 86 mm depth includes the handle throw, so check clearance against the enclosure door.