160 A MCCB with starter-protection release
The starter-protection version means it's tuned for motor branch circuits — the magnetic trip responds fast enough to handle locked-rotor inrush without nuisance tripping on a healthy start, while the thermal element protects the motor feeder against sustained overload. That's serious fault-current headroom for a 160 A frame — it'll clear a bolted fault upstream of a motor starter without the arc flash escalating. At 440 V it's still 30 kA, enough for most 480 V distribution panels in North America. Out here in the grease, what matters is whether this thing handles the heat a motor panel sees. Past that it starts to derate — 153.6 A at 55 °C, 150.4 A at 60 °C, down to 144 A at 70 °C (-).
Panel fit and auxiliary contacts
Front-facing IP40 protection keeps dust and accidental tool contact out of the mechanism.