Thomas Betts A18-8 D-shaped Ring Terminal 22-16 Awg 100pk

Product Description

The THOMAS BETTS A18-8 is a non-insulated, D-shaped ring terminal designed for secure crimp connections in low-voltage wiring applications. It accepts 22 to 16 AWG wire and fits a number 8 stud, making it a standard choice for control wiring, panel terminations, and equipment grounding connections. The contact is made from copper with a tin (TiN) plating to resist corrosion and maintain conductivity over time. At 0.75 inches long and 0.31 inches wide, this terminal fits in tight terminal blocks and enclosures where space is a factor. Electricians and panel wiring technicians use this terminal where a reliable, compact ring connection is needed without insulation bulk.

This terminal is suited for residential and commercial electrical work, including control panels, HVAC low-voltage wiring, motor control centers, and field wiring in electrical enclosures. The crimp connection requires no soldering, making installation fast and consistent with standard hand or ratchet crimp tools. The red color designation is commonly associated with the 22 to 16 AWG wire range, aiding quick identification during panel assembly or service. Sold in a package quantity of 100, this part is appropriate for contractors and technicians who terminate multiple circuits on a single job.

Key Features

• D-shaped ring profile fits number 8 stud hardware
• Accepts 22 to 16 AWG wire with a crimp connection — no soldering required
• Copper contact with TiN plating for corrosion resistance and long-term conductivity
• Non-insulated design for use in applications where insulation is applied separately or not required
• UL 486A, UL 486B, and CSA 22.2 certified for use in listed electrical assemblies
• RoHS compliant and rated UL 94 V-0 for flame resistance

Compatibility

Designed as an OEM-style crimp ring terminal for use with 22 to 16 AWG wire on number 8 stud terminations in listed electrical assemblies per UL 486A and UL 486B.

Installation Notes

Installation should be performed by a licensed electrician or qualified technician in accordance with the NEC and applicable local codes. De-energize the circuit completely before terminating any conductors. Use a calibrated crimp tool rated for the wire gauge and terminal type to achieve a gas-tight connection — do not use pliers or uncalibrated tools as substitutes. Inspect the crimped terminal for proper seating and verify the stud fastener is torqued to the equipment manufacturer's specification.