Interrupting ratings and selectivity
The 3VA2163-7MS36-0AJ0: At 240 V the breaker clears 330 kA; at 415 V and 440 V it still handles 242 kA, dropping to 187 kA at 500 V and 3.7 kA at 690 V. That steep roll-off above 500 V means the 690 V rating is effectively a low-fault backup — plan coordination downstream of a current-limiting fuse if the service voltage runs above 500 V.
Thermal performance and panel fit
Rated current holds steady at 63 A from 40 °C through 70 °C ambient — no derating curve to track in a warm enclosure. The 86 mm depth and 105 mm width fit standard 3-pole MCCB panel cutouts; the 181 mm height is typical for this frame class. Power dissipation maxes at 4 W, so heat load inside a sealed cabinet is minimal.