These Terminal Blocks are Preferred for Applications Where the Connections are Subjected to Severe Vibrations. The Wire is Crimped to Ring /Fork Type Lug (Ferrule) and is Screwed on to Flat Current Bar on the Terminal Block. The Range Includes Terminal Blocks for Wire Sizes from 1.5 to 10 Square Millimeter Cross Connection can be Achieved with the Aid of External Shorting Links. It is Recommended to Use Protective Covers in Transparent Plastic to Fully Shroud These Assemblies.