Rated short-circuit breaking capacity is 187 kA at 240 V AC, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 4.5 kA at 690 V — the SCCR curve covers the full low-voltage range for selectivity studies. Thermal derating begins at 55 °C: 238 A at 55 °C, 225 A at 60 °C, 213 A at 65 °C, 200 A at 70 °C. The maximum power loss is 48 W.
The 70 °C upper operating limit matches the top of the derating curve — at that ambient you carry 200 A, not the full 250 A nameplate.
SCCR and Selectivity Notes
The trip indicator is absent on this variant; the voltage trigger is present, meaning the shunt trip can be wired for undervoltage or remote trip via the STL coil.