Above that, the thermal curve drops to 375 A at 55 °C, 350 A at 60 °C, 325 A at 65 °C, and 300 A at 70 °C — so if your panel ambient runs hot, you lose capacity fast; size for the actual enclosure temperature, not the nameplate. 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 7.5 kA at 690 V. The breaker includes a communication function and ships with two HP auxiliary switches. The basic switch variant is 3VA2340-5JQ42-0AA0 — this order code adds the aux switches and comms. No undervoltage release or voltage trigger is fitted.
That's the cleanest status you can get for a BOM freeze: no looming PCN, no forced redesign.
Dimensions: 248 mm high, 184 mm wide, 110 mm deep. The 110 mm depth leaves room behind a 200 mm deep enclosure for wiring and finger-duct. Maximum power loss is 96 W. In a sealed, non-ventilated enclosure that heat adds up — account for it in your thermal budget, especially if the breaker is grouped with other high-current devices.