The Siemens SENTRON 3VA2463-7HN32-0BL0 is a 3-pole molded case circuit breaker (MCCB) rated for line protection, carrying a continuous current Iu of 630 A at 40 °C and an insulation voltage Ui of 800 V. The headline breaking capacity hits 330 kA at 240 V AC, stepping down to 242 kA at 415/440 V, 187 kA at 500 V, and 52.5 kA at 690 V — these figures define the maximum fault current the breaker can safely interrupt at each voltage level, which is the primary number for selectivity studies and SCCR compliance on a distribution board. Operating temperature spans -25 °C to 70 °C, with the current derating curve published from 40 °C upward (612 A at 45 °C, 593 A at 50 °C, down to 520 A at 70 °C). Storage range is wider at -40 °C to 80 °C.
Lifecycle and sourcing — current production, quoted to order
The basic switch (the breaker without auxiliaries) is order code 3VA2463-7HN32-0AA0, and the integrated auxiliary trip module is 3VA9608-0BB11 — useful references if you need to source the base unit separately or replace the UVR module.
Panel integration — footprint and mounting
At 630 A frame size, verify busbar spacing and cable bending radius against the 110 mm depth — the line and load terminals need clearance for lugged conductors.
Selectivity and coordination — what the breaking capacities tell you
The 52.5 kA rating at 690 V is relevant for 690 V industrial networks (mining, marine, heavy industry). For selectivity studies, the ETU350's adjustable I²t and short-time delay settings allow coordination with downstream MCCBs and MCBs.