The Siemens SENTRON 3VA1180-3EF36-0JH0 is a 3-pole molded case circuit breaker (MCCB) rated for line protection, carrying 80 A continuously at 40 °C ambient. The thermal derating curve holds flat at 80 A through 50 °C, then steps down to 78 A at 55 °C, 77 A at 60 °C, 75 A at 65 °C, and 74 A at 70 °C — useful to check if your panel ambient runs warm. Breaking capacity varies sharply with system voltage: 75.6 kA at 240 V, 52.5 kA at 415 V, 32 kA at 440 V, and 11.9 kA at both 500 V and 690 V. That 11.9 kA at 690 V is the limiting figure for high-voltage industrial feeds — verify your available fault current against this value before committing the BOM line. Rated insulation voltage is 800 V, and maximum power loss is 19.2 W. The breaker ships with a shunt trip (STL) auxiliary release and a complement of 2 auxiliary switches plus 1 trip alarm switch (HQ). No undervoltage release, no ground-fault monitoring, no communication function, and no other measurement function are fitted on this variant.
Panel fit: 70 mm depth, 76.2 mm width, 130 mm height. The 3-pole footprint matches standard MCCB mounting in distribution boards and motor control centers. Operating temperature range is -25 °C to +70 °C; storage range is -40 °C to +80 °C.