The Siemens SENTRON 3VA2440-5HL32-0DL0 is a 3-pole molded case circuit breaker rated 400 A continuous at ambient temperatures from 40 °C through 70 °C — no derating needed across that thermal band, which saves you the headache of recalculating for a warm panel. Interrupting capacity is the headline: 187 kA at 240 V, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 9 kA at 690 V. Line protection designation means the trip curve and thermal-magnetic response are tuned for cable and busbar protection, not motor starting. Pair it with a contactor or starter downstream if the load is a motor.
Width 138 mm, height 248 mm, depth 110 mm. The 138 mm width is a three-pole footprint; if you're swapping an existing three-pole MCCB, the panel cutout and busbar spacing should match without rework.
Auxiliary hardware — what ships on it
That HQ configuration gives you remote status on open/closed, trip, and electrical fault — enough for a PLC input block without adding an external accessory module.