ELE Ground Fault Circuit Interrupters with USB combo is one of the new electrical safety protective products independently developed, which has a number of technologies under patent protection. The series of products are suitable for the circuit of 60 Hz AC, rated Voltage of 125 VAC and rated current of no more than 20 A, to provide protection against injury to persons and to prevent the risk of the fire caused by the ground-fault current due to the damage of the electrical devices. Meanwhile, these products are capable of preventing the neutral conductor on the load side of the GFCI from being grounded repeatedly. When the circuit or the electrical device presents a leakage current or the value of the neutral ground fault reaches up to the intended value of the product, the product will disconnect the circuit to effectively protect against the injury to persons and property. The series of products can be installed into the ordinary walls as the controlling branch circuit for the public and family bedroom, kitchen, toilet, underground garage and other places. These products can also be installed in the power generation equipment to provide an interface for the output of the power supply.Ground Fault Circuit Interrupters with USB (LGR 23 Series) shall be provided with auto-monitoring function, end of life function, reverse line-load miswire protection function, visual indication function and the like, meanwhile these products will provide USB charging function and partial supplementary functions, and shall be provided with Tamper-resistant (TR), self-grounding, nightlight and Weather-resistant (WR) according to the clients’ requirements.LGR23 series Ground-fault Circuit Interrupters (LGR 23 Series) have been evaluated and approved by UL and CUL, which can be selected according to the clients’ requirements.