3M 7100025090 Heat Shrink Butt Connector 22-18 Awg

Product Description

The 3M 7100025090 is a heat shrink seamless butt connector designed for making reliable inline wire splices in electrical wiring applications. Rated for 22-18 AWG wire, this connector features chamfered barrel ends that allow fast, easy wire insertion from both ends. A built-in wire stop ensures correct wire positioning before crimping. The seamless construction provides a clean, moisture-resistant seal once heat is applied. Licensed electricians, HVAC technicians, and other trade professionals use this connector when a durable, protected inline splice is required.

This connector is suited for residential and commercial wiring tasks where a secure, insulated inline connection is needed on 22-18 AWG conductors. Common applications include control wiring, low-voltage circuits, and general electrical splicing in HVAC systems, panels, and equipment harnesses. The heat shrink sleeve activates during installation to create a tight, protective seal around the crimped joint, reducing exposure to moisture and vibration. It is sold in a case quantity of 250 units, making it practical for contractors stocking service vehicles or shop inventory.

Key Features

• Chamfered barrel ends allow fast wire insertion from both ends
• Built-in wire stop provides correct wire positioning before crimping
• Heat shrink seamless construction delivers a protective, moisture-resistant seal
• Compatible with 22-18 AWG wire range
• Case quantity of 250 units supports high-volume service work
• Requires crimping at both ends for a secure connection

Compatibility

Designed as an OEM-style inline splice connector for use with 22-18 AWG conductors in general electrical, low-voltage, and HVAC control wiring applications.

Installation Notes

Installation should be performed by a qualified electrician or trained trade professional in accordance with applicable NEC requirements. De-energize the circuit and verify absence of voltage before making any splice. Insert stripped wire ends fully into each barrel end until they contact the built-in wire stop, then crimp both ends using an appropriate ratcheting crimp tool. After crimping, apply heat evenly along the connector using a heat gun to activate the shrink sleeve and complete the seal.

Technical Specifications

• Wire Range: 22-18 AWG
• Case Quantity: 250 units
• Weight: 0.01 pounds
• UPC: 00054007063438

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100025090