PCB terminal block is an important connector of the input and output of PCB electric current and signal.It is a kind of terminal withe the most structures,types and the widest applications among all the European-style terminal blocks.It is mainly used in some industries such as industrial control, communication, electric power,security and protection, and monitoring.According to the product and wire connecting structure characteristics, UTL divides this model into 4 types including lifting cylinder type, cam type, wire-protecting type and spring type.Through combining its own connecting grooves(connecting holes)with other 2-hole or 3-hole products, the specifications ranging from 2 holes to 24 holes or even more holes can bereached so as to meet the require-ments of different wire connecting quantity(part of products apply the one-piece-no-connecting structure).