The 3 PK NSI (ASC500T) No Box Series ASC-T Dual Rated Compression Tinned Aluminum Splice is designed to create secure and reliable connections between aluminum and copper conductors. To use, strip the insulation from the ends of the wires that need to be spliced and insert them into the compression splice. Use a compression tool to apply the necessary pressure, ensuring a firm, permanent connection between the conductors. The tinned aluminum design provides corrosion resistance and improves the conductivity of the connection. These splices are dual-rated, making them suitable for both aluminum and copper wires, and are commonly used in industrial, commercial, and residential electrical applications for splicing large conductors.