At 40 °C the breaker is rated a full 80 A; it derates to 74 A at 70 °C. Breaking capacity drops as voltage rises: 75.6 kA at 240 V, 52.5 kA at 415 V, 32 kA at 440 V, and 11.9 kA at 500/690 V. If your service entrance fault current is, say, 65 kA at 240 V, this breaker holds; at 415 V with 60 kA available, it doesn't — that's the selectivity gate. Dimensions are 130 mm high, 76.2 mm wide, 70 mm deep — a 3-pole MCCB that fits standard Siemens SENTRON mounting bases and busbar systems.
The UVR coil draws from the line side; verify the control voltage matches your system before energizing. Auxiliary switches and the trip alarm share a common terminal block — wire them to a PLC input card for remote trip indication.