The Siemens 3VA2140-5MN32-0HA0 is a SENTRON 3VA2 molded case circuit breaker (MCCB) rated for 40 A continuous at 40 °C across all poles — the same 40 A holds steady through 70 °C ambient, so no derating curve to track for most panel environments. Breaking capacity hits 187 kA at 240 V, 121 kA at 415/440 V, 75.6 kA at 500 V, and 3.7 kA at 690 V — the 690 V figure is low, so verify coordination if that's your service voltage.
Power loss maxes at 1.6 W, negligible for thermal budgeting inside a closed enclosure. The 40 A rating is flat across the full operating range — no summer derate to calculate. Trip indicator is absent; the shunt trip provides the remote status signal instead.