The RCB-6B Junction Box is used to increase the number of electrodes that can be used with a single electrofisher by providing connectors for up to three extension cables. A short cable is provided to connect to a cathode along with 15 feet of cable and plugs. A switch is provided for two of the three electrodes so that 1, 2, or 3 electrodes may be employed. As a safety feature, the magnetic switches on all the active electrode poles must be operated simultaneously to activate electrofisher output.