80 A SENTRON MCCB with 220 kA interrupting rating
The Siemens 3VA1180-6EF36-0BH0 is a 3-pole SENTRON molded case circuit breaker rated 80 A continuous at 40 °C, designed for line protection in distribution panels. Its standout spec is the 220 kA breaking capacity at 240 V AC — that is a very high interrupt rating for an 80 A frame, meaning it can safely clear massive fault currents without upstream cascading. At 415 V it still holds 154 kA, and at 690 V it drops to 17 kA, which is typical for this class. Thermal derating is gradual: it holds 80 A all the way to 50 °C, then tapers to 74 A at 70 °C. The insulation voltage is rated 800 V, and maximum power loss hits 21.7 W at full load — useful for enclosure heat calculations. This MCCB ships with an undervoltage release (UVR) fitted, plus 2 auxiliary switches and 1 trip alarm switch (HQ type). The basic switch itself is order code 3VA11806EF360AA0. No communication module or ground-fault monitoring on this variant — it is a straight line-protection breaker.
Panel fit and physical integration
The 3VA1180-6EF36-0BH0 occupies a 76.2 mm wide (3-inch) footprint on the DIN rail or mounting plate, with 130 mm height and 70 mm depth. That 70 mm depth is worth noting for shallow enclosures — it is shallower than many MCCBs in this current class, which often run 90–100 mm deep. Verify your gland plate clearance if the panel is tight.