The 380 V AC coil matches standard European industrial control voltages.
The headline AC-3 rating of 50 A at ≤440 V governs motor switching: AC-3 is the category for starting and stopping squirrel-cage induction motors under load, so this contactor handles inrush up to about 6× rated current during start. The AC-3e rating extends that to energy-efficient motors with higher inrush. For purely resistive loads (heater banks, lighting), the AC-1 rating applies — no inrush, so the thermal capacity is the limit. The 1.5 ms non-overlap time between NC and NO contacts on both energisation and de-energisation ensures the auxiliary contacts never bridge during transition, critical for interlocking in reversing or star-delta circuits.
IP2X means finger-safe from the front but not sealed; install inside an enclosure rated for the environment. The TH protective treatment (pollution degree 3) per IEC 60068-2-30 means it withstands the condensation and humidity cycles typical of non-climate-controlled industrial panels.