What it is and what it does
The Siemens 3VA1180-6EF36-0JH0 is a SENTRON molded case circuit breaker (MCCB) for line protection — the primary disconnect and fault interrupter in a distribution panel. Three-pole, rated 80 A continuous at 40 °C ambient, with a 220 kA interrupting capacity at 240 V. That 220 kA figure at 240 V means it handles very high available fault currents typical on the secondary of large step-down transformers or in high-capacity busway feeds; the 154 kA at 415 V and 121 kA at 440 V still cover most industrial service-entrance and sub-distribution scenarios. At 500 V and 690 V the rating drops to 17 kA, so if the line side is a 480 V or 600 V class system, verify the available fault current is under that threshold.
Ratings that drive the fit
Rated insulation voltage (Ui) is 800 V, so the breaker is built for 690 V class systems with margin. The 80 A rating holds flat from 40 °C to 50 °C, then derates to 78 A at 55 °C, 77 A at 60 °C, 75 A at 65 °C, and 74 A at 70 °C — useful if the breaker lives in a hot enclosure or next to other heat sources. Power loss at rated current is 19.2 W, which matters for enclosure thermal calculations when ganging multiple breakers. The breaker ships with a basic switch (order code 3VA11806EF360AA0) and is fitted with two auxiliary switches plus one trip alarm switch (HQ). A shunt trip (STL) is built in for remote tripping. No undervoltage release, no ground-fault monitoring, no communication module — this is a straightforward line-protection MCCB with remote trip capability and status feedback via the auxiliary contacts.
Panel fit and integration
Dimensions: 130 mm high, 76.2 mm wide (3 in), 70 mm deep (2.76 in). Standard MCCB footprint for a 3-pole 80 A frame — mounts on a DIN rail or directly to a backplate via the breaker's base. The 76.2 mm width matches the typical 3-inch-per-pole spacing, so it drops into existing SENTRON panel layouts without re-drilling. Operating temperature range is -25 °C to +70 °C; storage from -40 °C to +80 °C.
Compliance documentation
As a Siemens SENTRON MCCB, the 3VA1180-6EF36-0JH0 carries the usual compliance documentation: CE marking for the European market, UL/CSA listings for North America, and RoHS/REACH declarations. The exact certification numbers are on the nameplate and in the manufacturer's declaration pack available on request.