The D-curve means the magnetic trip threshold is set at 10 to 20 times rated current, so it passes the startup surge and clears only on a hard fault. Rated breaking capacity is 15 kA per EN 60898-1 and 30 kA per IEC 60947-2 at 400 V AC, with a DC rating of 15 kA at 60 V (max 72 V). That dual rating covers most panel SCCR requirements in Europe and North America — the 30 kA IEC figure is the one to use for industrial coordination studies. UL 1077 recognition gives it 5 kA for supplementary protection use in the US. The IP20 finger-safe terminals accept top and bottom combined conductors — no need for separate busbar feeders on each pole.
The combined terminal design at both top and bottom means you can feed the same phase through multiple breakers without extra bridging — saves a busbar run on multi-pole groups.
Environmental tolerance: -40°C to +75°C operating range, with humidity derating above 55°C (95% RH to 55°C, 55% to 70°C, 35% to 75°C). Vibration resistance per IEC 60068-2-6 covers ±1 mm at 5–25 Hz and 50 m/s² at 25–150 Hz — fine for machine-mounted panels.