Large-current shunt coupler

The utility model discloses a large-current shunt coupler, and relates to the technical field of coupler manufacturing. Comprising a shunt coupler body, the shunt coupler body is provided with a coupler male end and a coupler female end, the two ends, close to each other, of the coupler male end and the coupler female end are connected with a first interface and a second interface respectively, and interface fastening mechanisms are fixedly connected to the interfaces of the coupler male end and the coupler female end; the connector fastening mechanism comprises fastening rings, the fastening rings are two semicircular shroud rings, fastening plates are fixedly connected to the two ends of each semicircular shroud ring, threaded holes are formed in the fastening plates, and the two shroud rings are fixedly connected to the connector of the coupler male end and the coupler female end in a threaded connection mode. The coupler has the advantages that after the male end and the female end of the coupler are conn