It's built for line protection — think main feeder or large motor branch in an industrial panel.
Breaking capacity across voltages
Breaking capacity drops as voltage climbs: 330 kA at 240 V, 242 kA at both 415 V and 440 V, 187 kA at 500 V, and 52.5 kA at 690 V. That's a steep derate above 500 V — if your panel runs at 690 V, the 52.5 kA figure is the one that governs your fault-current rating, not the headline 330 kA.
Thermal derating and power loss
Rated 400 A up to 50 °C ambient; above that it derates to 385 A at 55 °C, 370 A at 60 °C, 355 A at 65 °C, and 340 A at 70 °C. Maximum power loss is 96 W — that's the heat you need to vent in a closed panel. Dimensions are 110 mm deep, 138 mm wide, 248 mm high — fits standard MCCB mounting footprints.
The basic switch is order code 3VA2340-7HL32-0AA0, and the integrated auxiliary trip is 3VA9688-0BL33.