MCCB for high-current line protection
Its interrupting capacity reaches 187 kA at 240 V, 121 kA at 415 V, and 52.5 kA at 690 V, giving it the headroom to clear high-fault currents without cascading upstream. Power loss is 330 W maximum — factor that into panel ventilation when grouping several breakers.
That means the 1000 A nameplate applies in most ventilated enclosures, but a hot panel near the upper limit needs the derated figure for coordination studies.
Auxiliary and release configuration
The shunt trip allows remote tripping via a control signal — useful for emergency-stop circuits or interlocking.