A busbar connecting apparatus of a distribution board

A connecting apparatus for bus and sub bus bars of a distribution board is provided to implement stable power connection by pressing a bus bar and a connection piece with a uniform power regardless of an angle of a pair of fixing nippers by forming a pressing projection at the fixing nippers. A connecting apparatus for bus and sub bus bars of a distribution board includes a connector(20) inside an insulator case(10) to connect between a circuit breaker(3) and a bus bar(2). The connector includes a connection piece(21), a pair of fixing nippers(22), and a fixing screw(23). One side of the connection piece is fixed to a connection end of the circuit breaker and the other side thereof is closely fixed to the bus bar. The connection piece is bent and positioned inside the case. The pair of fixing nippers are arranged at upper and lower parts of the connection piece inside the case and central parts thereof are coupled to each other with a hinge. The fixing screw presses the bus bar and the connection piece while rotating by being coupled on a rear of any one side of the fixing nippers and lowering an opposite side of a rear side of the fixing nippers according to rise of the rear side of the fixing nippers.