SENTRON 3VA1040-2ED46-0AA0 — 40 A MCCB, line protection
Its interrupting capacity reaches 52.5 kA at 240 V, 32 kA at 415 V, 13.6 kA at 440 V, and 7.5 kA at 500/690 V — so at typical 400 V class distribution voltages, it clears 32 kA faults, enough for most secondary switchboards. The 70 mm depth and 101.6 mm width fit standard SENTRON panel footprints, and the IP40 front protection suits enclosed distribution boards.
Thermal-magnetic curve and derating
The TM210 release holds 40 A continuously up to 50 °C ambient, derates to 39 A at 55–60 °C, 38 A at 65 °C, and 37 A at 70 °C — no derating needed in a standard 40 °C panel, but account for the drop in a hot enclosure.