Current derating and thermal limits
The 3VA1163-6EF32-0HH0: Full 63 A holds up to 50 °C ambient. Above that it derates: 62 A at 55 °C, 61 A at 60 °C, 60 A at 65 °C, 58 A at 70 °C. Operating range is -25 °C to 70 °C; storage range is -40 °C to 80 °C. Maximum power loss is 17.3 W. That derating curve matters if this breaker sits in a crowded panel or near other heat sources — the 58 A at 70 °C figure is the one to use for a hot enclosure.
Dimensions and panel fit
Width 76.2 mm (3 in), height 130 mm (5.12 in), depth 70 mm (2.76 in). That 70 mm depth is the body only — account for the shunt trip (STL) and the 2 auxiliary switches plus 1 trip alarm switch HQ on the side when calculating clearance to the enclosure door or adjacent components. Rated insulation voltage is 800 V.
Built-in accessories and release options
Comes with a shunt trip (STL) for remote tripping, plus 2 auxiliary switches and 1 trip alarm switch HQ for status feedback. No undervoltage release, no ground-fault monitoring, no communication function. The supplied basic switch is order code 3VA11636EF320AA0. Trip indicator and voltage trigger are present.