Thermal derating and power loss
The 3VA2463-6HN32-0HH0: The continuous current rating derates with ambient temperature: 630 A at 40 °C, 612 A at 45 °C, 593 A at 50 °C, 575 A at 55 °C, 557 A at 60 °C, 538 A at 65 °C, and 520 A at 70 °C. Maximum power loss is 162 W — account for that heat in the enclosure sizing, especially if the panel is densely packed or operating above 40 °C. The breaker occupies 138 mm width, 248 mm height, and 110 mm depth on the DIN rail or mounting plate.
Auxiliary and trip configuration
This variant ships with a shunt trip release (STL) for remote tripping, plus 2 auxiliary switches and 1 trip alarm switch (HQ configuration) for status feedback to a PLC or annunciator panel. The basic switch is order code 3VA2463-6HN32-0AA0 — the breaker itself is the fully assembled unit with the shunt trip and auxiliary switches factory-installed. No undervoltage release, no ground-fault monitoring, and no communication function on this version.