630 A MCCB for heavy line protection
It carries a maximum short-circuit breaking capacity of 187 kA at 240 V, stepping down to 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 9 kA at 690 V — which means it can clear high-fault currents at typical distribution voltages without cascading upstream breakers. The adjustable trip range spans from 945 A minimum to 5 670 A maximum, giving the specifying engineer room to match the breaker's instantaneous pickup to the downstream load's inrush profile. Thermal derating is published across the operating range: 630 A at 40 °C, 612 A at 45 °C, 593 A at 50 °C, 575 A at 55 °C, 557 A at 60 °C, 538 A at 65 °C, and 520 A at 70 °C. For a panel builder pushing ambient up near 50 °C inside the enclosure, the effective continuous rating drops to 593 A — that 6% reduction matters when sizing the main breaker for a fully loaded switchboard. The 138 mm width across three poles is standard for this class of MCCB — it fits the common 3-pole mounting pattern in a SENTRON panelboard or a DIN-rail adapter plate.
Built-in auxiliary switching and trip indication
That dual-signal arrangement is useful for a remote monitoring system that needs to distinguish between a planned shutdown and a protective trip. The basic switch module is order code 3VA2463-5HL32-0AA0, which means the auxiliary contact block can be swapped in the field if the switching configuration needs to change. If the panel requires any of those functions, they must be added externally or a different 3VA2 order code selected.