The 6 kA breaking capacity per EN 60898 tells you it can safely interrupt a fault current up to that level at 400 V; under UL 1077 the same unit is rated 5 kA, so check which standard governs your panel's SCCR requirements. Four poles with no neutral switching means it's a straight 3-phase + N protection block — the neutral bar passes through without a switched contact. That's standard for most industrial distribution boards where the neutral is solidly bonded. The 4 MW width (72 mm) and 76 mm depth fit standard DIN-rail enclosures; the quick-assembly fastening and any mounting position make it straightforward to drop into a panel without reworking the gland plate.
Rated for ambient temperatures from -40 °C to 75 °C with humidity derating: max 95% RH up to 55 °C, tapering to 35% at 75 °C. The part carries vibration resistance per IEC 60068-2-6: ±1 mm at 5 to 25 Hz, 50 m/s² at 25 to 150 Hz. That's enough for most industrial machinery but not for direct engine-mounting without additional damping.