It carries a 50 kA rated short-circuit capacity at 230 V AC per IEC 60947-2, and 15 kA at 60 V DC per the same standard — figures that tell you it can interrupt high-fault currents without upstream coordination in most panel designs. Under UL 1077 the interrupting rating is 5 kA, so if the installation falls under a UL 508A listed assembly, verify the available fault current against that lower threshold.
The IP20 rating applies with connected conductors, meaning the busbar and wiring must be in place before the ingress protection is valid; the terminals themselves are not sealed.
Environmental and service life
Rated for ambient temperatures from -40 °C to 75 °C, with humidity limits that taper: max 95% RH at 55 °C, down to 35% at 75 °C. Vibration resistance per IEC 60068-2-6 is ±1 mm at 5 to 25 Hz and 50 m/s² at 25 to 150 Hz, which covers most industrial panel vibration profiles. Pollution degree 3 means it's suitable for environments with conductive or dry non-conductive pollution — typical for factory floors not in clean-room conditions.