Siemens SENTRON 3VA1040-2ED32-0DA0 — 40 A MCCB, Line Protection, TM210 Release
It's a 3-pole unit for line protection, meaning it's sized for feeder or branch-circuit duty in distribution panels — not motor protection with adjustable overloads, but fixed thermal-magnetic curves for cable and busbar protection. Breaking capacity hits 52.5 kA at 240 V, 32 kA at 415 V, 13.6 kA at 440 V, and 7.5 kA at 690 V — so at 415 V it handles typical industrial fault levels without cascading upstream. The TM210 release is non-interchangeable, fixed at 40 A; no trip indicator, no auxiliary contacts, no communication module. If you need remote status or a shunt trip, this isn't the variant — the 3VA1040-2ED32-0DA0 is a bare-bones line-protection breaker with UVR only. Dimensions are 130 mm high, 76.2 mm wide, 70 mm deep (three-pole width about 3 x 25.4 mm, so it fits standard SENTRON 3VA panel cutouts and busbar drop-ins).
Thermal Derating and Ambient Performance
Above that it starts to taper: 38.4 A at 55 °C, 37.6 A at 60 °C, 36.8 A at 65 °C, and 36 A at 70 °C. If your panel ambient runs 55 °C continuous, you're effectively derated to 38 A — plan your load accordingly.
Integration Notes
No auxiliary contacts means no remote status feedback; if you need that, order the variant with the 3VA9608-0BB25 auxiliary trip unit separately (listed as the integrated auxiliary trip unit).