used in: industrial automation, power system, traffic signal and household appliances and other fields, used to connect different kinds and specifications of the wires and electrical equipment; Compact structure, easy installation, solid connection, repeatable disassembly and connection; By using fence terminals, the larger contact area of the wire or conductor can reduce the risk of current overload and short circuit, thus reducing the risk of fire; It has a more convenient and fast connection mode, which greatly simplifies the wiring process and improves the work efficiency; The use of fixed connection, its safety is higher, can effectively avoid the occurrence of poor wire contact, short circuit and arc and other safety problems.