Siemens 3VA1040-3ED32-0CH0 — SENTRON MCCB, 40 A, Line Protection
The interrupting ratings climb to 75.6 kA at 240 V and 52.5 kA at 415 V, so it handles high-fault-current scenarios common in industrial switchgear. No communication function, no phase failure detection, and no ground fault monitoring are built in; this is a straightforward thermal-magnetic MCCB without electronic trip unit extras.
Above that, it derates: 38.4 A at 55 °C, 37.6 A at 60 °C, 36.8 A at 65 °C, and 36 A at 70 °C.
Interrupting Ratings Across Voltages
The interrupting capacity varies sharply with system voltage: 75.6 kA at 240 V, 52.5 kA at 415 V, 32 kA at 440 V, and 7.5 kA at 690 V. For a 415 V panel with typical transformer impedance, 52.5 kA covers most service-entrance and sub-feed applications.
That 76.2 mm width is a standard 3-pole MCCB footprint — it drops into the same panel cutout as other 3VA 3-pole frames. The IP40 front protection means it's rated for indoor panel mounting only; no outdoor or washdown exposure.