966903-2 is an insulated wire end ferrule designed for clean and reliable termination of flexible and stranded wires. This ferrule features a plastic sleeve with color coding per industry standards for circuit identification and is adapted for use with screw, push-in, and spring connections. The ferrule facilitates wire insertion into terminal clamps of terminal blocks and other control devices, providing a solid surface at the point of connection. It is commonly used in industrial and commercial applications where contact precision is critical, offering a gas-tight and secured connection when used with TE Connectivity precision crimp tools.