Parameters Brand: Schneider Electric Series: TeSys D (LC1D family) Model / Part Number: LC1D18BDC Product Type: AC Contactor (Electromechanical) Number of Poles: 3 (3P) Main Contacts: 3 Normally Open (3 NO) Auxiliary Contacts: 1 NO + 1 NC (integrated) Rated Operational Current (Ie): 18 A (AC‑3 utilization) Rated Operational Voltage (Ue): Up to 690 V AC (25–400 Hz) Control Coil Voltage: 24 V DC (standard) Contactor Application: Motor control and general load switching Utilisation Categories: AC‑1, AC‑3, AC‑3e, AC‑4 Motor Power Ratings (Approximate): ~4 kW at 220–230 V AC 3‑phase ~7.5 kW at 380–400 V AC 3‑phase ~9 kW at 415–440 V AC 3‑phase ~10 kW at 500–690 V AC 3‑phase Rated Insulation Voltage (Ui): 690 V AC Thermal Current (Ith): 32 A (free‑air) Rated Breaking Capacity: ~300 A at 440 V AC Rated Making Capacity: Suitable for industrial loads Mounting: Panel or DIN‑rail compatible Operating Frequency: 50 / 60 Hz Mechanical Durability: High cycle life Electrical Endurance: Designed for frequent load switching Environmental Conditions: Industrial ambient range Standards Compliance: IEC 60947 series (AC contactors)