1Exquisite Craftsmanship: PC flame retardant shell, high performance engineering plastic, protecting electrical safety, high sensitivity, and strong load bearing capacity. 2Copper Core Coil: Utilizing a strong resistance coil to flow current and generate a magnetic field with closed contacts, achieving industrial electrical installation and load control. 3Premium Design: Silver alloy contacts have strong conductivity, carry greater current, have more sufficient quality, and have smoother suction. 4Reliable Work: The connection contact is stable, has strong conductivity, and is resistant to high temperature erosion. Working frequency up to 1,200 times per hour, high sensitivity, and greater load bearing capacity. 5Quick to Install: Comes with a light weight and a compact size as well, the standard installation of this AC contactor is very convenient. 1 xAC Contactor