What this 80 A MCCB carries — and where it fits
The Siemens SENTRON 3VA1080-2ED36-0JA0 is a 3-pole molded case circuit breaker rated 80 A continuous current at 40 °C, with a TM210 thermal-magnetic overcurrent release and an integrated shunt trip (STL) auxiliary release. It's a line-protection breaker — meaning it guards feeders and distribution circuits against overload and short circuit, not motor-protection curves. The 80 A rating holds steady up to 50 °C; above that it derates to 76.8 A at 55 °C and 72 A at 70 °C, so factor that into your panel ambient if it's running hot. Breaking capacity is 52.5 kA at 240 V, 32 kA at 415 V, and 7.5 kA at 690 V. That's enough for most industrial secondary-distribution panels; at 690 V it's still clearing faults in high-voltage motor circuits downstream of a step-down transformer. The IP40 front rating means it's splash-protected on the face but not sealed for washdown — keep it inside the enclosure.
Panel fit and wiring notes
Mounts on a standard DIN rail or direct-panel mount. The 70 mm depth leaves room for wiring behind the breaker in a 200 mm deep enclosure; the 76.2 mm width fits a standard 3-pole MCCB slot. The shunt trip (STL) auxiliary release is factory-fitted — order code 3VA9688-0BL32 for the integrated trip unit — so you don't need to add an external undervoltage relay for remote tripping. No auxiliary contacts, no communication module, no phase-failure detection on this variant; it's a straightforward thermal-magnetic breaker with a remote-trip coil. Wire it with the shunt trip in series with an E-stop or safety relay for emergency disconnect.