3M 7010349267 Butt Splice Terminal Heat Shrink Crimp-on Red

Product Description

The 3M 7010349267 is a fully insulated heat shrink butt splice terminal designed for making secure, moisture-resistant wire-to-wire connections in electrical and low-voltage wiring applications. Each terminal uses a crimp-on connection method, requiring no soldering. Once crimped, the heat shrink insulation is activated with a heat gun to form a tight, insulated seal over the joint. The red color coding indicates compatibility with a standard wire gauge range common to control wiring, appliance wiring, and field service repairs. This package contains 25 terminals.

Heat shrink butt splice terminals are used across residential and commercial electrical work, HVAC control wiring, pool and spa equipment wiring, and appliance service. Electricians and HVAC technicians reach for these when a permanent, insulated splice is needed in a conditioned or exposed environment. The heat shrink sleeve adds a layer of protection against moisture ingress and abrasion compared to standard vinyl-insulated alternatives, making them well suited for installations where connections may see vibration or humidity.

Key Features

• Fully insulated heat shrink sleeve seals the splice against moisture and abrasion after activation
• Crimp-on connection — no soldering required
• Red color coding for quick gauge identification during installation
• 1.2 inches overall length for a compact splice profile
• Two wire entries — one per end — for standard in-line butt splicing
• CSA Certified, UL Listed, and RoHS 2011/65/EU Compliant

Compatibility

Designed as an OEM-style replacement and general-use butt splice terminal for standard crimp-tool-compatible in-line wire joining applications in electrical, HVAC, and related trade wiring.

Installation Notes

Installation is performed by licensed electricians or qualified HVAC technicians using a ratcheting or calibrated crimp tool sized for the terminal. Always de-energize the circuit and verify zero voltage with a meter before making any splice. After crimping both wire ends, apply heat evenly with a heat gun until the shrink sleeve conforms fully to the wire jacket. Follow all applicable NEC requirements for splice protection and conductor sizing.