Its 50 kA interrupting capacity at 230 VAC handles high-fault scenarios common on motor branch circuits and transformer-fed loads.
That's a high-fault-capacity device — it belongs in a panel fed from a transformer with stiff utility or generator supply, not a residential load center. Rated operational voltage is 400/690 VAC and 125 VDC, with a frequency range of 50/60 Hz. The thermal mechanism handles overload protection; the electromechanical trip handles short circuits. Single-pole construction means it switches one phase — use it on a 230 V line-to-neutral circuit or a DC circuit within its voltage limits.
DIN-rail integration
Single-pole width means one module space — keeps panel fill factor tight. Spring-cage or screw terminals accept 0.2–2.5 mm² conductors; strip length 8 mm. No auxiliary contact block required for basic isolation; add one if you need remote status feedback.