Non-insulated ferrules serve a specific purpose where the plastic collar of a standard ferrule would be a hindrance. The QUADRIOS 22C472 is designed for use in double-level or multi-tier terminal blocks where the clearance between layers is minimal. Without the collar, the ferrule can be inserted deeper into the terminal body, allowing the screw clamp to make direct contact with the conductive barrel.

This ferrule is manufactured from high-purity copper and coated with tin to provide excellent conductivity and corrosion resistance. The single-barrel design is intended for terminating a single 0.34 mm² conductor, commonly used for fine signal wires in PLC and DCS systems.

It is critical to note that this ferrule does not provide any finger-safe insulation; the terminal block itself must provide adequate protection against accidental contact. Use this ferrule when you need to save space in high-density wiring applications or when the terminal block's design requires a collarless termination.