Magnetic contactors are a form of electrical relay found on most electrically powered motors. They act as a go-between for direct power sources, and high-load electrical motors in order to homogenize or balance out changes in electrical frequency which may come from a power supply as well as to act as a safeguard. Specifications: Place of Origin : China Brand Name : Siemens Model Number: AC Contactor Electricity Type : AC Number of Pole :3 Phase: 3 Main Circuit Rating Voltage: 380V Main Circuit Rating Current: 100A Product Name: 3TB Magnetic Telemecanique Contactor Certificate: CE Application: DC Motor Type: Contactor Material: Plastic Silver Copper Frequency: 50HZ/60HZ COLOR: AS PIC Condition: 100%NEW Package Includes: 1 x 3TB44 22E Siemens Magnetic Contactor