The present invention discloses an electrical contact plug-in for a switch cabinet, comprising: an insulating shell, a contact locking
assembly, arranged inside the insulating shell, wherein: the contact locking
assembly is provided with three groups, each group of contact locking assemblies comprises a mounting cylinder, an insulating block, a mounting groove, a connecting plate, a conductive block, a driving plate, a fixing frame, a moving block, a transmission
assembly and a prompt assembly, and the mounting cylinders are all embedded in the inner wall of the insulating shell. The transmission assembly can facilitate the transmission of power, facilitate the rapid completion of circuit breaking during the maintenance process, and avoid
electric shock safety accidents caused by
virtual circuit connection. The outer walls of the active
bevel gear and the driven
bevel gear are meshed and connected to each other for transmission. A
ratchet is fixedly arranged on one side of the outer wall of the driven
bevel gear. The
ratchet can ensure that the transmission assembly will not reverse, making the connection state of the circuit unstable, and the
ratchet will be blocked by an electromagnetically controlled clamping rod during the application process to ensure the anti-reversal function of the ratchet.