The 19 PK Polaris (IT 1/0) NSI 1/0-14 AWG Polaris Insulated Tap Connectors used in good condition are designed for securely tapping into electrical circuits. To use, first strip the insulation from the wires, exposing the appropriate length of copper conductors, ensuring they fit within the connector’s capacity (from 1/0 AWG to 14 AWG). Insert the stripped ends of the wires into the connector, ensuring proper alignment and a secure fit. Tighten the connector screws to firmly clamp the wires in place, ensuring a solid connection. Finally, the insulated design provides protection against electrical shorts, ensuring safety and durability for your residential, commercial, or industrial electrical systems.