630 A MCCB with high interrupting capacity
The SENTRON 3VA2463-7HN32-0KH0 is a 3-pole molded case circuit breaker rated for 630 A continuous current at 40 °C, with a maximum breaking capacity of 330 kA at 240 V AC. At 415 V the interrupting rating is 242 kA, and at 690 V it drops to 9 kA, so the voltage class of your distribution system governs the actual SCCR you can rely on.
Current derating across temperature
The continuous current rating is temperature-dependent. At 40 °C it carries the full 630 A; at 50 °C it derates to 593 A; at 60 °C to 557 A; and at 70 °C to 520 A. If your panel ambient runs hot — say near a drive cabinet or in a non-climate-controlled enclosure — use the 50 °C or 60 °C row for sizing, not the 40 °C headline.
Dimensions are 248 mm high, 138 mm wide, 110 mm deep. The 110 mm depth is the front-to-back panel depth needed behind the door — check your enclosure depth before committing. The 138 mm width is the standard 3-pole MCCB footprint; it mounts via the supplied basic switch (order code 3VA2463-7HN32-0AA0) and fits SENTRON mounting accessories. Operating temperature range is -25 °C to +70 °C; storage range is -40 °C to +80 °C.