Ca781, pre assembled shorting link, jumper, cross connection, cross connection bridge Internal Shorting Link Assemblies consist of a Current Bar shorting Sleeves and Screws. They install easily into the centre of the Terminal Block and connect to the current bar. They are available as standard 2, 3, 4, 10 or 100-pole assemblies and are ready for immediate installation. Insulated pre assembled shorting link assemblies provide shock protection when installed on Terminal Blocks.