The utility model provides a distribution board, it includes the guard block and removes the part, one end lower surface that backup pad in the guard block and second protection shield bottom are connected with be provided with a compression spring between the bottom plate, the other end with the bottom plate is articulated, and the upper surface of backup pad still is provided with first spout portion, remove the part be used for drive power supply side contact terminal and load incline contact terminal respectively with the mains side open circuit the portion with the load side portion of opening circuit establishs and connects, installs on the removal part the bottom face of mains side contact terminal and load side contact terminal's supporting part is provided with a slide rail, can with the base cooperation that is provided with the slide, when mains side contact terminal inclines first protection shield and the second protection shield of contact terminal in touching the guard block with the load, along with making way just along the slide of removal parts is slided backward, avoided with the collision and the friction of other part, can protective apparatus, increase of service life.