The Siemens SENTRON 3VA1180-4EF36-0BH0 is a 3-pole molded case circuit breaker (MCCB) rated for line protection, carrying 80 A continuously at 40–50 °C ambient without derating. Above 55 °C the current tapers to 78 A at 55 °C, 77 A at 60 °C, 75 A at 65 °C, and 74 A at 70 °C — so if this breaker lives in a hot enclosure, the actual load must be trimmed accordingly. Breaking capacity is the headline number for a line-side MCCB: 121 kA at 240 VAC, 75.6 kA at 415 V, 52.5 kA at 440 V, and 11.9 kA at both 500 V and 690 V. The 70 mm depth and 76.2 mm width fit the standard SENTRON 3VA footprint — it occupies the same DIN-rail or screw-mount slot as other 3VA frames, which simplifies panel layout when swapping ratings.
Built-in undervoltage release and auxiliary switch complement
No communication module or ground-fault monitoring is included on this order code — it is a pure line-protection breaker with undervoltage release. If remote trip indication or earth-leakage detection is needed, those are separate add-on accessories in the 3VA system.