This breaker's interrupting capacity varies sharply with system voltage — a critical detail when specifying for a given fault-current level. At 240 V it interrupts 121 kA, which covers most North American 240/120 V panelboard and light-industrial service-entrance applications. At 415 V (common in European and Asian industrial distribution) it handles 75.6 kA. At 440 V it drops to 52.5 kA, and at 500 V and 690 V it holds at 11.9 kA.
Continuous current and thermal derating
At 55 °C it derates to 24 A, at 65 °C to 23 A, and at 70 °C (its maximum operating ambient) to 23 A.
Panel integration — footprint and mounting
The 3-pole width (76.2 mm, or 3 inches) is standard for this frame class — it fits a typical DIN-rail or panel-mount cutout without surprises. The undervoltage release is factory-installed; no field-assembly required. No communication function or ground-fault monitoring on this variant — it is a straight thermal-magnetic line-protection breaker with UVR.