The 3VA4140-6ED34-0AA0: The continuous current rating drops from 40 A at 40 °C to 36 A at 70 °C — a 10 % reduction across the operating range. Maximum power loss is 10.6 W, low enough that it won't drive extra ventilation in a typical 600 mm wide panel.
Interrupting capacity at line-to-neutral voltages
At 480Y/277 V the breaker holds 65 kA; at 600Y/347 V it still manages 25 kA. That covers common wye-connected distribution in North American commercial and light industrial panels — the 65 kA figure matches the 480 V line-to-line rating, so coordination studies stay consistent across voltage configurations.