Thomas Betts 17279-TB Butt Splice Terminal Yellow

Product Description

The THOMAS BETTS 17279-TB is a yellow butt splice terminal used to join two conductors end-to-end in a secure, insulated connection. Yellow color coding indicates this terminal is sized for a specific wire gauge range common in residential and light commercial wiring. The insulated barrel accepts stripped wire from both ends, crimped in place with a standard ratcheting or non-ratcheting crimping tool. Electricians and HVAC technicians install this type of terminal when making mid-run wire splices, extending conductors, or repairing damaged wiring in control circuits, low-voltage systems, or line-voltage branch circuits.

This butt splice terminal is suited for use in residential, commercial, and light industrial electrical installations. It is commonly used in control panel wiring, appliance repair, HVAC low-voltage wiring, and general-purpose electrical service work. The yellow insulation sleeve provides both color-coded wire gauge identification and insulation to protect the crimped joint from incidental contact and environmental exposure.

Key Features

• Yellow insulation provides quick visual identification of compatible wire gauge range
• Insulated barrel design protects the crimped connection after installation
• Accepts conductors from both ends for a straight inline splice
• Compatible with standard ratcheting crimp tools used in electrical and HVAC service
• Compact form factor suitable for installations with limited clearance

Compatibility

Designed as an OEM-style replacement butt splice terminal suitable for general electrical, HVAC control wiring, and light commercial applications where a yellow-coded insulated splice connector is required.

Installation Notes

Installation should be performed by a licensed electrician or qualified HVAC technician in accordance with applicable NEC requirements. De-energize the circuit completely before making any wire splice connections. Use a properly rated ratcheting crimp tool to ensure full compression of the terminal barrel onto the stripped conductor. Do not use pliers or non-ratcheting tools as substitutes, as improper crimps can result in high-resistance connections or pull-out failures.