3M 7010399749 Butt Splice Terminal Nylon Crimp-on Blue 100 Pack

Product Description

The 3M 7010399749 is a fully insulated nylon butt splice terminal designed for crimp-on wire connections in electrical installations. Each terminal measures 1.08 inches in overall length and accepts two wire entries, making it suitable for joining conductors end-to-end in a single, compact splice. The blue color coding indicates a specific wire gauge range consistent with standard color conventions for insulated terminals. Electricians and wiring technicians install these during panel work, fixture wiring, equipment hookups, and control wiring where a clean, insulated splice point is required. This package contains 100 terminals.

These butt splice terminals are used in residential, commercial, and light industrial electrical work wherever a reliable insulated splice is needed. Common applications include branch circuit wiring, low-voltage control wiring, HVAC equipment wiring harnesses, and general panel or junction box terminations. The nylon insulation provides mechanical protection and electrical isolation at the splice point. Each terminal in this package is identical in specification, making them suitable for volume wiring tasks or stocking in a service truck or panel shop.

Key Features

• Fully insulated nylon sleeve provides electrical isolation and mechanical protection at the splice
• Crimp-on connection method for fast, consistent terminations without soldering
• Two wire entries allow direct conductor-to-conductor butt splicing
• Blue color coding for quick gauge identification during installation
• UL Listed under UL File E23438 for code-compliant installations
• RoHS 2011/65/EU compliant for use in regulated environments
• Package of 100 terminals supports production wiring and service stocking

Compatibility

Designed as a standard crimp-on butt splice terminal suitable for use with compatible ratchet or non-ratchet crimping tools sized for insulated terminals in the blue wire gauge range.

Installation Notes

Installation is performed by licensed electricians or qualified technicians following applicable NEC requirements. De-energize and lock out the circuit before making any splice connections. Use a calibrated crimping tool rated for insulated nylon terminals to ensure a full, gas-tight crimp. Do not over-strip conductors, as exposed wire beyond the terminal barrel compromises insulation integrity.