Closed End Connectors

Product Introduction

Closed end connectors, commonly known as nipple-type wire caps, are electrical accessories used for quick connection, insulation and protection of wires, named for their nipple-like shape. They are widely used for parallel splicing, branching and closed-end connections in low-voltage electrical circuits such as LED lights, home appliances and lighting equipment.

Material

Nylon shell

PP plastic shell

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Product Features

Structure: Consists of a nylon or PP plastic shell encasing an inner copper or aluminum tube, with an open end for wire insertion and a closed end.

Functions:
Enable quick parallel connection of multiple wires;
Provide insulation protection to prevent short circuits;
Some models feature screw-type or press‑type self-locking structures for tool‑free installation.

Certifications: Most products comply with safety and environmental standards including UL, CE, CQC and RoHS.

Temperature Resistance: Mainstream models pass the 750℃ high-temperature glow-wire test, making them suitable for high‑safety applications such as lighting fixtures and power adapters.