3M 7100019140 Wing Twist-on Wire Connector 600V 750 Pack

Product Description

The 3M 7100019140 is a wing-style twist-on wire connector rated for 600 volts and designed for secure, reliable splicing of copper conductors in electrical wiring applications. The wing ears allow for hand-tightening without tools, giving electricians a firm grip during installation. This connector carries a maximum operating temperature of 221 degrees F and is constructed with a flame-retardant shell, reducing fire propagation risk in tight junction boxes or conduit enclosures. Compatible with conductors down to 2 AWG, the 7100019140 is a field-proven choice for branch circuit splices in residential, commercial, and light industrial work. Each package contains 750 connectors.

This wing twist-on connector is suited for use in junction boxes, panel terminations, device boxes, and fixture connections where a fast, solderless wire splice is required. The color coding — red and tan — helps electricians identify wire gauge ranges at a glance during high-volume rough-in or service work. The 750-count pack is well suited for contractors working multi-unit residential projects, commercial tenant improvements, or any installation requiring a large quantity of consistent, code-compliant splices. Licensed electricians are the primary installers for this type of connector in regulated construction environments.

Key Features

• Wing-ear design allows tool-free hand tightening for fast installations
• Flame-retardant shell construction reduces fire propagation risk
• Rated for 600 volts, suitable for standard branch circuit applications
• Maximum operating temperature of 221 degrees F
• Minimum compatible wire size of 2 AWG
• Red and tan color coding for quick wire gauge identification
• 750-count package quantity supports high-volume job site use

Compatibility

Designed for use with copper conductors starting at 2 AWG in standard 600-volt branch circuit splicing applications. Suitable for residential, commercial, and light industrial electrical installations.

Installation Notes

Installation should be performed by a licensed electrician in accordance with the National Electrical Code (NEC) and applicable local codes. Always de-energize the circuit and verify zero voltage with a meter before making or breaking any wire connections. Insert conductors fully into the connector and twist clockwise until the shell seats firmly against the insulation. Do not over-torque or use power tools to drive twist-on connectors, as this can damage the internal spring or strip conductor strands.