The interrupting capacity hits 187 kA at 240 V AC, 121 kA at 415 V, and still holds 17 kA at 690 V, so it handles high-fault scenarios downstream of a transformer without cascading upstream breakers. The IP40 front protection means the breaker face is protected against solid objects over 1 mm, but the enclosure itself must be rated for the installation environment — this is a panel-mount component, not a standalone outdoor unit. Power loss at full load runs 33 W maximum, worth considering for thermal management in a densely packed enclosure.
Current derating and thermal limits
Above that, it derates: 156 A at 55 °C, 151 A at 60 °C, 147 A at 65 °C, and 142 A at 70 °C.
Dimensions are 105 mm wide, 158 mm high, 70 mm deep.