The headline figure here is the interrupting capacity: 220 kA at 240 VAC drops to 154 kA at 415 V, 121 kA at 440 V, and holds at 17 kA at both 500 V and 690 V. Current rating is thermally sensitive: the breaker carries a full 80 A up to 50 °C ambient, then derates to 78 A at 55 °C, 77 A at 60 °C, 75 A at 65 °C, and 74 A at 70 °C.
Auxiliary and release configuration
The shunt trip allows remote tripping via a control voltage — useful for emergency-stop circuits or interlocking schemes. The auxiliary switches provide status feedback (open/closed) to a PLC or indication panel. It is a straightforward line-protection device, not a smart breaker.
The 76.2 mm (3-inch) width is standard for a 3-pole MCCB in the SENTRON 3VA frame — it fits the same DIN-rail or mounting-plate footprint as other 3VA breakers of this frame size. The supplied basic switch is order code 3VA11806EF320AA0, which confirms the internal mechanism.