SENTRON 3VA1140-6ED36-0AA0 — 40 A MCCB, Line Protection, TM210 Release
The Siemens SENTRON 3VA1140-6ED36-0AA0 is a 3-pole molded case circuit breaker (MCCB) rated 40 A at 40 °C, designed for line protection in distribution panels. It carries a 220 kA breaking capacity at 240 V and 154 kA at 415 V, with a TM210 thermal-magnetic overcurrent release. The 70 mm depth and 76.2 mm width fit standard Siemens SENTRON panel footprints — that's another SKU that drops into the same busbar kit as the rest of the 3VA family.
Breaking Capacity and Thermal Derating
Breaking capacity drops from 220 kA at 240 V to 17 kA at 690 V — the high-end rating at 240 V suits transformer-secondaries or high-fault commercial services, while the 690 V figure still clears most industrial motor-circuit faults. Thermal derating is flat at 40 A from 40 °C through 50 °C, then steps down to 37 A at 70 °C. That's a tight derating curve; you don't lose much headroom in a warm panel.
Panel Integration and Environment
Mounts on DIN rail or direct-panel via the SENTRON base adapter. IP40 on the front — fine for enclosed distribution boards, not for washdown zones. Operating range -25 °C to 70 °C; storage from -40 °C to 80 °C. Power loss maxes at 10.8 W — negligible for thermal budgeting in a multi-breaker panel.