80 A SENTRON MCCB, 3-pole, TM240 release
The Siemens 3VA1180-3EF32-0JA0 is a SENTRON molded case circuit breaker (MCCB) rated for line protection in distribution panels. It carries a rated continuous current Iu of 80 A at 40 °C ambient, with a thermal-magnetic overcurrent release designated TM240. Three poles, no auxiliary contacts, no undervoltage release, and no communication function — this is a straightforward thermal-magnetic breaker for feeder or main protection where selectivity and SCCR headroom are the priorities.
Breaking capacity across voltage levels
The interrupting ratings span the common distribution voltages: 75.6 kA at 240 V, 52.5 kA at 415 V, 32 kA at 440 V, and 10.5 kA at 690 V. At 415 V, that 52.5 kA SCCR covers most industrial panel bus faults without needing a current-limiting upstream device. At 690 V the 10.5 kA figure is lower — verify against the available fault current at that voltage before committing the BOM line.
Thermal derating and ambient limits
Rated 80 A from 40 °C through 50 °C ambient. Above that, the breaker derates: 76.8 A at 55 °C, 75.2 A at 60 °C, 73.6 A at 65 °C, and 72 A at 70 °C. The operating ambient range is -25 °C to 70 °C; storage range is -40 °C to 80 °C. If the panel ambient runs above 50 °C, the continuous current must be adjusted per these figures — the TM240 release does not compensate for ambient drift.
Panel footprint and mounting
Width 76.2 mm, height 130 mm, depth 70 mm. That 76.2 mm (3-inch) width is standard for a 3-pole MCCB in this frame size — it occupies three 25 mm module positions on a DIN rail or panel-mount footprint. IP40 on the front face; the enclosure around it must handle the rest of the ingress protection for the assembly.
Shunt trip provision
This version includes a shunt trip (STL) auxiliary release, order code 3VA9688-0BL32 for the integrated trip unit. No undervoltage release, no ground-fault monitoring, no phase-failure detection — the shunt trip is the only remote-trip path. If the application requires undervoltage or ground-fault protection, a different variant is needed.