Its headline rating is 50 A at ≤415 V AC in AC-1 utilisation category, which means it handles resistive loads — heaters, ovens, lighting banks — at that current without derating. The 415 V AC 50 Hz control coil is a wide-range type, so it pulls in reliably across 0.7 to 1.25 times nominal voltage and drops out between 0.3 and 0.6 Uc. The contact configuration is 2 NO + 2 NC main poles with no auxiliary contacts built in. Rated insulation voltage is 690 V, and the part carries a rated breaking capacity of 200 A at 440 V and a making capacity of 250 A at 440 V, both per IEC 60947. That gives you headroom for inrush on resistive loads without welding the contacts. The maximum operating rate is 1800 cycles per hour at 60 °C, so it keeps pace with fast-cycling processes like injection moulding heater bands or packaging line seal bars.
IP20 finger-safe protection means it is suitable for enclosed panels only, not washdown zones. Power circuit terminals accept up to 10 mm² flexible with cable end; control circuit terminals take up to 4 mm². Tightening torque is 1.5 N·m on the power side and 1.2 N·m on the control side. The associated fuse recommendation is 50 A gG at ≤690 V for type 1 coordination.
Overvoltage category III and protective treatment TH per IEC 60068 for tropical environments.