Thomas Betts 54167 Rectangle Ring Terminal 4/0 Awg

Product Description

The THOMAS BETTS 54167 is a non-insulated rectangle ring terminal designed for high-current electrical connections using compression termination. Built with a copper contact body and a tin nitride (TiN) plating, this terminal delivers reliable conductivity and corrosion resistance in demanding electrical installations. It accepts 4/0 AWG wire and fits a 1/4-inch stud. At 1.9 inches in overall length and 1.03 inches in ring width, with a barrel thickness of 0.14 inches, this terminal is suited for heavy-duty power distribution work performed by licensed electricians and industrial maintenance technicians.

This terminal is used in commercial and industrial electrical applications where large-gauge conductors must be securely terminated to busbars, switchgear studs, panel lugs, or similar connection points. The compression connection style requires a calibrated crimping tool appropriate for 4/0 AWG conductors. Its non-insulated design is common in applications where terminals are housed within enclosures or protected by other insulating components after installation.

Key Features

• Compression connection for secure, gas-tight termination on 4/0 AWG wire
• Copper contact material for high conductivity in power distribution circuits
• TiN (tin nitride) contact plating for corrosion resistance and long service life
• 1/4-inch stud size fits standard busbars and panel connection points
• Non-insulated construction suitable for enclosed or post-insulated installations
• CSA Certified, UL Listed, and RoHS Compliant

Compatibility

Designed as an OEM-style compression ring terminal for 4/0 AWG conductors terminating to 1/4-inch studs in heavy-duty electrical distribution and power wiring applications.

Installation Notes

Installation should be performed by a licensed electrician following applicable NEC requirements for large-gauge conductor terminations. Always de-energize and lock out the circuit before installing or removing terminals. Use a calibrated compression crimping tool rated for 4/0 AWG to ensure a proper gas-tight crimp. Do not use pliers or uncalibrated tools as substitutes for a proper compression die set.