Thomas Betts 54866BE Ring Terminal 4/0 Awg Non-insulated

Product Description

The THOMAS BETTS 54866BE is a non-insulated rectangle ring terminal designed for high-capacity compression connections in electrical distribution and power wiring applications. Built with a copper contact body and a titanium nitride (TiN) plating, this terminal delivers reliable conductivity and resistance to corrosion and wear at the contact surface. It accepts 4/0 AWG wire via compression termination and fits a 1/2 inch stud. At 4.7 inches in overall length and 1.03 inches in ring width, it is sized for heavy-gauge installations where secure, low-resistance terminations are required. Electricians and maintenance professionals use this terminal where code-compliant, permanent mechanical connections are needed on large-conductor circuits.

This terminal is suited for commercial and industrial electrical work involving large-gauge power conductors. Typical applications include bus bar connections, switchgear terminations, panelboard lugs, and heavy equipment wiring. The compression connection style requires a properly sized compression tool to achieve a correct crimp, making it appropriate for professional installation. The purple color coding aids in visual identification of 4/0 AWG terminations in multi-conductor installations.

Key Features

• Non-insulated rectangle ring terminal for 4/0 AWG compression connections
• Copper contact material with TiN (titanium nitride) plating for durability and conductivity
• Fits 1/2 inch stud diameter
• Overall length of 4.7 inches and ring width of 1.03 inches for heavy-gauge applications
• Purple color coding for 4/0 AWG wire size identification
• RoHS compliant construction

Compatibility

Designed as an OEM-style compression ring terminal for use with 4/0 AWG conductors on 1/2 inch stud terminations in commercial and industrial electrical installations.

Installation Notes

Installation should be performed by a licensed electrician following applicable NEC requirements. De-energize and lock out the circuit before terminating any conductors. Use a calibrated compression tool rated for the 4/0 AWG conductor and this terminal style to achieve a proper crimp — do not use a mechanical or hand crimp tool that is not rated for this gauge. Inspect the completed termination for deformation, exposed conductor, or improper seating before re-energizing.