The Siemens 3VA1040-2ED32-0AD0 is a SENTRON 3VA molded case circuit breaker rated 40 A continuous at 40 °C ambient, with a TM210 thermal-magnetic trip unit.
At 240 V AC it interrupts 52.5 kA; at 415 V AC that drops to 32 kA; at 440 V AC it's 13.6 kA; at 500 V and 690 V AC it holds at 7.5 kA. The 415 V figure is the one most panel builders will check — 32 kA covers the majority of North American and European distribution fault levels below a main service entrance.
Thermal derating beyond 55 °C
At 55 °C it derates to 38.4 A, at 60 °C to 37.6 A, at 65 °C to 36.8 A, and at 70 °C to 36 A.
Width 76.2 mm (3 in), height 130 mm (5.12 in), depth 70 mm (2.76 in).
Power loss and auxiliary options
Maximum power loss is 10.8 W — negligible for enclosure thermal calculations unless densely packed.