Its 6 kA breaking capacity per EN 60898 at 400 V AC is the figure that governs fault interruption in a residential or light commercial distribution board; the same part also carries a 5 kA rating per UL 1077 and CSA C22.2 No.235, so it qualifies for North American panel builds that accept supplementary protectors. The 3-pole design (3P) switches all three phases simultaneously, with no neutral pole switching. DC rating tops out at 72 V — useful for control circuits but not for high-voltage DC bus protection.
Supplementary devices can be installed on the right side without increasing the width beyond the 3-module footprint.
Vibration resistance per IEC 60068-2-6 covers ±1 mm at 5 to 25 Hz and 50 m/s² at 25 to 150 Hz — sufficient for most machine-mounted panels but not for extreme shock loads.