The interrupting ratings climb steeply with lower voltages: 187 kA at 240 V, 121 kA at 415 V, 36 kA at 440 V, and 17 kA at 690 V, so an engineer coordinating selectivity upstream needs to verify the available fault current at the point of installation against these SCCR values. The thermal derating curve holds flat at 160 A from 40 °C through 50 °C, then drops to 155.6 A at 55 °C, 151.2 A at 60 °C, 146.8 A at 65 °C, and 142.4 A at 70 °C — a panel builder stuffing this into a high-ambient enclosure should size the branch accordingly.
Built-in accessories and trip options
The integrated auxiliary trip order code is 3VA9688-0BL33. The trip indicator and voltage trigger are present, so a field tech can see at a glance whether the breaker tripped on fault or was manually opened.
Where it goes in the panel
The latching endurance is rated at 15,000 operations, which is typical for a distribution breaker not cycled daily like a contactor. No communication function and no phase-failure detection on this variant — it's a dumb, reliable overcurrent protector.