Thomas Betts 54183 Square Ring Terminal 5/8 Inch Stud

Product Description

The THOMAS BETTS 54183 is a non-insulated square ring terminal designed for compression-style wire terminations in electrical wiring applications. The copper contact body features a titanium nitride (TiN) plating that resists corrosion and maintains reliable conductivity under load. At 3.21 inches overall length and 1.36 inches ring width, this terminal is sized for 5/8-inch stud connections. The 0.18-inch contact thickness provides structural rigidity for high-cycle or vibration-prone installations. Electricians and electrical contractors install this terminal in panel wiring, grounding assemblies, and power distribution runs where a bare, compression-crimped ring lug is the specified connection method.

This square ring terminal suits commercial and industrial electrical installations where non-insulated lugs are preferred for inspection visibility or where insulated terminals are not code-required. The 5/8-inch stud size fits common bus bar studs, grounding bolts, and equipment terminals found in switchgear, motor control centers, and distribution panels. The compression connection type requires a proper ratchet-style crimping tool sized to the wire gauge being terminated. The red color coding aids in visual identification during installation and maintenance.

Key Features

• Copper contact material for high electrical conductivity
• Titanium nitride (TiN) contact plating for corrosion resistance
• Non-insulated design allows direct inspection of the crimped connection
• 5/8-inch stud size fits standard bus bar and grounding hardware
• Compression connection type for a gas-tight, mechanically secure crimp
• CSA Certified, UL Listed, and RoHS Compliant

Compatibility

Designed as an OEM-style compression ring terminal for use on 5/8-inch electrical studs in commercial and industrial panel wiring, grounding, and power distribution assemblies.

Installation Notes

Installation should be performed by a licensed electrician in accordance with the National Electrical Code (NEC). De-energize and lock out the circuit before terminating any wiring. Use a calibrated ratchet compression crimping tool matched to the wire gauge and terminal series to achieve a proper gas-tight crimp. Do not use a hammer or uncalibrated pliers-style tool, as an improper crimp can result in high-resistance connections or mechanical failure under load.