Item Type: AC Contactor_x000D_ Material: PC, copper, iron, silver. _x000D_ Rated Current: 18A_x000D_ Contact Form: Normally Closed_x000D_ Contact Material: Silver_x000D_ Coil Frequency: 50HZ/60HZ_x000D_ Insulation Voltage UI: 690v_x000D_ Thermal Stable Current Ith: 92A_x000D_ Rated Impulse Withstand Voltage: 8kV_x000D_ Installation: Standard 35mm Guide Rail 1EXQUISITE WORKMANSHIP: Flame retardant PC shell, high performance engineering plastic, protecting electrical safety, high sensitivity, strong bearing capacity. 2COPPER COIL: An industrial appliance that uses a strong resistance coil to flow current and generate a magnetic field by closing contacts for electrical installation and load control. 332 IRON CORE: The silver alloy contacts are electrically conductive, carry more current, and close smoother, providing assurance for 32 iron cores. 4STABLE SILVER CONTACT: Strong conductivity, resistance to high temperature erosion. Operating frequency up to 1200 times per hour, high sensitivity, large carrying capacity, effective maintenance of the power circuit. 5EASY INSTALLATION: Convenient anti crack buckle design, 35mm standard clamp rail installation, widely used in long distance circuit connection and disconnection, AC motor frequent start and control.1 x_x000D_ _x000D_ AC Contactor