Thomas Betts 54179 Square Ring Terminal 3/8 Stud

Product Description

The THOMAS BETTS 54179 is a non-insulated square ring terminal designed for compression connections in electrical wiring applications. The terminal features a copper contact body with a titanium nitride (TiN) plating, which improves conductivity and corrosion resistance at the connection point. It measures 2.43 inches in overall length and 1.25 inches in ring width, with a material thickness of 0.15 inches. The 3/8-inch stud size fits standard fastener hardware common in panel and equipment terminations. Licensed electricians and electrical contractors are the primary installers of this type of terminal in branch circuit and equipment grounding applications.

This square ring terminal is suited for use in residential, commercial, and light industrial electrical installations where a secure, non-insulated compression lug is required. It is commonly used to terminate stranded or solid copper conductors at bus bars, ground lugs, terminal blocks, and equipment enclosures. The square ring profile provides a stable seating surface against fastener hardware, reducing movement and loosening under vibration. It ships individually and is available in single-unit quantities, making it practical for small repair jobs or replacement work.

Key Features

• Non-insulated square ring profile for direct metal-to-metal contact at stud terminations
• Compression connection type for reliable, tool-crimped conductor retention
• Copper contact material with TiN (titanium nitride) plating for enhanced conductivity and corrosion resistance
• 3/8-inch stud size fits common panel hardware and equipment fasteners
• Overall length of 2.43 inches with a ring width of 1.25 inches
• CSA Certified, UL Listed, and RoHS Compliant

Compatibility

Designed as an OEM-style compression ring terminal for use in standard electrical panel and equipment termination applications requiring a 3/8-inch stud size non-insulated square ring lug.

Installation Notes

Installation should be performed by a licensed electrician in accordance with applicable NEC requirements. De-energize and lock out the circuit before terminating or replacing any ring terminal. Use a calibrated compression crimping tool appropriate for the conductor gauge being terminated. Do not re-use a previously crimped terminal, as the compression joint cannot be reliably re-crimped.