SCCR and thermal derating
Interrupting capacity drops with system voltage: 121 kA at 415 V, 75.6 kA at 440 V, and 17 kA at 690 V. The continuous current holds at 160 A up to 50 °C ambient, then derates to 153.6 A at 55 °C, 150.4 A at 60 °C, 147.2 A at 65 °C, and 144 A at 70 °C.
The 3-pole footprint matches standard Siemens SENTRON 3VA panel cutouts. The undervoltage release and auxiliary switches are factory-installed; no field wiring of separate modules needed. No communication function or phase-failure detection is built in — this is a straight line-protection breaker.