Thomas Betts 18RA-8 Ring Terminal 22-16 Awg Crimp 100 Pack

Product Description

The THOMAS BETTS 18RA-8 is a partially insulated, D-shaped ring terminal designed for crimped wire terminations on 22 to 16 AWG copper conductors. The terminal features a copper contact with a TiN (titanium nitride) plating for reliable conductivity and corrosion resistance. A red vinyl insulation sleeve identifies the compatible wire gauge range at a glance, which is standard practice on job sites and in panel shops. At 0.97 inches in overall length and 0.31 inches in ring width, it fits a No. 8 stud. Electricians and panel wiring technicians use this terminal where a secure, insulated ring connection is required on light-gauge wire runs.

This terminal is suited for residential and commercial electrical panel wiring, control panel assembly, HVAC low-voltage wiring terminations, and general equipment wiring where 22 to 16 AWG wire connects to No. 8 threaded studs or screws. The partial insulation design provides grip and basic strain relief at the wire entry while keeping the ring barrel exposed for inspection after crimping. Sold in a package of 100 pieces, this SKU is appropriate for shop stocking or larger wiring projects requiring consistent, code-compliant terminations.

Key Features

• D-shaped ring barrel sized for No. 8 stud hardware
• Crimp connection type for fast, consistent termination with standard ratchet crimp tools
• Compatible with 22 to 16 AWG wire — red color coding for quick gauge identification
• Copper contact with TiN plating for low-resistance, corrosion-resistant connection
• Vinyl partial insulation meets UL 94 V-0 flame rating
• Compliant with UL 486A, UL 486B, CSA 22.2, and RoHS requirements

Compatibility

Designed for crimp termination on 22 to 16 AWG stranded or solid copper conductors to No. 8 threaded studs, screws, or binding posts in electrical panels, control enclosures, and equipment wiring applications.

Installation Notes

Installation should be performed by a qualified electrician in accordance with NEC requirements for wire terminations. Always de-energize and lock out the circuit before installing or replacing terminal connections. Use a properly calibrated ratchet-style crimp tool rated for the terminal series to ensure a gas-tight crimp — do not use pliers or non-ratcheting tools, as an improper crimp can result in a high-resistance connection or pull-out failure. Inspect the completed crimp for full barrel compression and confirm the ring seats flat against the stud before torquing the hardware.