The utility model provides a pair of breaker, including breaker body and a plurality of linkage unit that sets up side by side, every the linkage unit includes: body, body are equipped with a plurality of first through -holes, and each first through -hole is fit for different wires and passes, conducting structure sets up on the body, includes the first end of being connected with the connecting terminal electricity of breaker body, with the second end that passes the electrical connection wire in one of them first through -hole, the first through -hole cooperation of same position departmentforms the conductor channel who supplies the wire to pass on the linkage unit that sets up side by side. When being connected with the power, the wire of power only need pass the conductor channel that the first through -hole on every linkage unit formed, and under a fairly large number of condition of breaker, through the mode of side inlet wire, the lead line number volume of required connectionis less, and it is convenient to overhaul, and arranging of wire is neat, and the convenience need will not connected through turn the corner book, wire stripping like the direct front inlet wire that adopts at present, the mode of being qualified for the next round of competitions to wire when connecting.