It carries a TM240 thermal-magnetic release, meaning the thermal trip element is calibrated for the 400 A frame, and the magnetic instantaneous pickup is fixed at 240 A per pole. The 110 mm depth and 184 mm width are the panel-cutout dimensions you need to plan around. At 248 mm tall, it fits standard MCCB mounting footprints in most 600 V switchboards. The rated insulation voltage is 800 V, so it's comfortable on 480 V and 600 V systems — the 690 V interrupting rating of 11.9 kA is what governs on a 600 V corner-grounded delta or a 690 V IT system.
Interrupting capacity across system voltages
The SCCR drops as voltage climbs: 121 kA at 240 V, 75.6 kA at 415 V and 440 V, 52.5 kA at 500 V, and 11.9 kA at 690 V.
Full 400 A rating holds up to 50 °C ambient. Above that it derates linearly: 392 A at 55 °C, 384 A at 60 °C, 376 A at 65 °C, and 367 A at 70 °C.
Auxiliary switching and accessories
That's enough for remote status indication — one NO/NC for the breaker position, another for the trip signal. The basic switch designation is 3VA13404GF420AA0 if you need to order the bare breaker without auxiliaries.