It provides L (overload) and I (short-circuit) protection in a single-pole (1P) fixed-mount package for distribution applications. Rated breaking capacity hits 18 kA Icu at 220/240 V AC (50/60 Hz) and 36 kA Icu at 250 V DC, both per IEC 60947-2. If your panel runs hotter, you'll need to derate per the thermal curve — the 40 °C figure is the baseline, not a guarantee at 50 °C.
Fixed-mount on a backplate, 35 mm wide, 161 mm tall, 86 mm deep. Front-connect on both line and load sides — no rear-access needed, which simplifies panel layout. Toggle control, no aux contacts or shunt trip included as standard.
Mechanical endurance is 20,000 cycles; electrical endurance is 20,000 cycles at 277 V at In/2 and 10,000 cycles at 277 V at full In. Suitability for isolation is confirmed per EN/IEC 60947-2 — you can use it as a disconnecting means for safe maintenance. Power dissipation per pole is 4.01 W. For a 1-pole breaker that's 4 W of heat to vent in the enclosure — negligible for a single unit, but add up the row in a multi-breaker panel.