The Tripconnect 1P multi-fuction Protective device is designed to measure single phase two wire AC active energy and used in over & under voltage protection as well as over current protection. In case of over/under voltage or over current fault in line, this product can instantly power off the load to prevent electrical equipment from being damaged. The over & under voltage and over current values of this product can all be set up by oneself and can be adjusted on the basis of local practical condition. The product has a long use of life with the advantageof high stability,high over load capability, low power loss and wide working voltage.