Thomas Betts 14RB-2577 Female Disconnect Terminal 14-16 Awg

Product Description

The THOMAS BETTS 14RB-2577 is a nylon fully insulated female disconnect terminal designed for reliable electrical connections in commercial and residential wiring applications. It features a brazed-seam, serrated barrel construction that maximizes tensile strength at the crimp joint. The terminal accommodates conductors from 16 AWG minimum to 14 AWG maximum and accepts a 0.25 inch x 0.032 inch male tab. The blue nylon insulation is color-coded for quick AWG range identification during installation. Electro tin plated brass construction provides corrosion resistance and solid conductivity. Licensed electricians and low-voltage technicians install this terminal using standard crimping tools engineered to match the terminal geometry.

The 14RB-2577 is suited for panel wiring, control circuit terminations, and general electrical assembly work where a secure, insulated disconnect connection is required. The funnel-entry insulator design guides wire into the barrel for faster, more consistent crimps. This terminal is part of a complete series covering 22 to 10 AWG in non-insulated, partially insulated, and fully insulated styles in both nylon and vinyl insulation types, giving installers flexibility across a broad range of conductor sizes and application requirements.

Key Features

• Brazed-seam, serrated barrel construction maximizes crimp tensile strength
• Nylon fully insulated with funnel-entry design for easier wire insertion
• Accepts conductors from 16 AWG to 14 AWG
• Fits 0.25 inch x 0.032 inch male disconnect tabs
• Blue color coding for fast AWG range identification at the workbench
• Electro tin plated brass body for corrosion resistance and conductivity

Compatibility

Designed as an OEM-style replacement and standard production terminal for 14 to 16 AWG conductors requiring a 0.25 inch fully insulated female disconnect connection. Compatible with installing tools engineered for the Series 250 terminal line.

Installation Notes

Installation should be performed by a qualified electrician in accordance with applicable NEC requirements. Always de-energize the circuit before terminating or removing disconnect terminals. Use a crimping tool rated and sized for this terminal series to achieve proper tensile strength — an undersized or over-crimped connection can compromise the joint. Do not solder over a crimped terminal, as this can wick into the conductor and create a stress fracture point.

Technical Specifications

• Type: Brazed Seam, Serrated Barrel
• Insulation Type: Nylon Fully Insulated
• Color: Blue
• Minimum Conductor Size: 16 AWG
• Maximum Conductor Size: 14 AWG
• Tab Size: 0.25 inches x 0.032 inches
• Overall Dimensions: 0.97 inches L x 0.38 inches W
• Temperature Rating: 105 degrees C
• Material: Electro Tin Plated Brass
• Approvals: UL, CSA
• Standard Package Quantity: 100
• Country of Origin: US

Standard Information

• Brand: THOMAS BETTS
• Manufacturer Part Number: 14RB-2577