3SR7
Mã sản phẩm : 3SR7
Mô tả:
3SR7 thermal overload relay is suitable for power system with AC 50Hz, rated operation voltage up to 660V and 1000V in main circuit, current from 0.1A to 630A.
Kho hàng: Còn hàng
HỖ TRỢ TRỰC TUYẾN
It is used to protect AC 3 phase asynchronous motor against overload and phase failure. The current setting value can be regulated and the setting current values of many thermal elements are overlapping arrangement, for easy selecting by the customers from －25℃ to +55℃ air temperature for temperature compensation purpose. The relays have the test push-button for breaking NC contacts, operating indication and free tripping characteristics. The relays conform to IEC60947-4-1.