Its breaking capacity hits 330 kA at 240 V, dropping to 242 kA at 415 V and 440 V, then 187 kA at 500 V, and still holds 52.5 kA at 690 V — meaning the part handles high-fault utility feeds and transformer secondaries where the available fault current is substantial, not just motor branch circuits.
Thermal Derating and Operating Envelope
At 55 °C it drops to 96 A, at 60 °C to 94 A, and at 65 °C to 92 A, finally settling at 90 A at 70 °C. Maximum power dissipation is 75 W. The 105 mm width, 181 mm height, and 86 mm depth fit standard Siemens 3VA mounting footprints; verify busbar and lug clearance before panel layout.