The 3VM1163-4GD42-0AA0: Rated insulation voltage is 800 V, and the max operating voltage hits 690 V AC — so it's comfortable in 480 V and 600 V class systems, not just 240 V. Power loss maxes at 17 W, which is modest for a 63 A frame — helps with thermal management in a crowded panel.
Physical fit — panel dimensions
The 3VM1163-4GD42-0AA0 measures 70 mm deep, 101.6 mm wide, and 130 mm tall. The 4-pole width is about 4 inches, so it occupies one standard 4-module space in a distribution board. Verify the depth clearance for the rear arc chamber and terminal access; 70 mm is shallow enough for most enclosures.