Siemens SENTRON 3VA1180-3ED26-0AA0 — 80 A MCCB, Line Protection, Active
It carries a rated current of 80 A at 40 °C, with thermal-magnetic TM210 overcurrent release, and is rated for a breaking capacity of 75.6 kA at 240 V AC and 52.5 kA at 415 V AC — figures that determine its fault-clearing capability in a given system's available fault current. This is a 2-pole unit, rated insulation voltage 500 V, with an operating voltage of 415 V AC and 250 V DC.
Note the thermal derating: at 55 °C it's 78 A, at 65 °C it's 75 A, and at 70 °C it's 74 A — so if the panel ambient runs hot, the effective ampacity drops. Breaking capacity of 75.6 kA at 240 V AC and 52.5 kA at 415 V AC tells you the maximum fault current the breaker can safely interrupt at those voltages. For a 480 V system, you'd need to check the 3VA manual for the DC rating curve — the evidence notes that DC switching values are covered in the device manual, not in the basic spec table.
Dimensions are 70 mm deep, 50.8 mm wide (2 inches), 130 mm tall. The 2-inch width per pole is standard for SENTRON 3VA breakers, meaning it occupies two 18 mm DIN-rail spaces. This is a basic thermal-magnetic breaker for line protection.
Lifecycle status is current.