1. Product Overview
The Gardner Bender 25-089 WingGard Twist-On Wire Connectors are designed for making secure electrical connections. These blue connectors are suitable for a wire range of 14-6 AWG and come in a pack of 10. They feature an easy-on wing-type design for positive continuity between conductors and an expandable square wire spring for a strong, vibration-resistant connection. The tough, thermoplastic shell provides protection against environmental extremes, and the high dielectric shell with a deep skirt design prevents exposure of bare wire while offering superior flash-over protection.

Image: A pack of blue Gardner Bender 25-089 WingGard Twist-On Wire Connectors. These connectors are designed for secure electrical splices.
Key Features:
- Winged Design: Knurled wings are offset from the centerline for enhanced twisting leverage and a sure grip.
- Secure Connection: Square-wire zinc-plated spring instantly adjusts to the shape and size of the splice, ensuring a strong, vibration-resistant connection.
- Flame-Retardant: Resists heat distortion up to 105°C / 221°F.
- High-Dielectric Shell: Features a deep skirt design to prevent exposure of bare wire and provide superior flash-over protection.
- Copper-to-Copper Connections: Designed exclusively for copper wire connections.
- Voltage Rating: 600V max in building wire and 1000V max in lighting, fixtures/luminaries, and signs.
2. Safety Information
Always prioritize safety when working with electrical wiring. Failure to follow these safety guidelines may result in electric shock, fire, or personal injury.
- Disconnect Power: Always turn off the power at the circuit breaker or fuse box before installing or removing wire connectors. Verify that the power is off using a voltage tester.
- Proper Wire Stripping: Ensure wires are stripped to the correct length as specified by local electrical codes and connector instructions. Avoid over-stripping or under-stripping.
- Correct Wire Gauge: Use connectors appropriate for the wire gauge and combination of wires being joined. Refer to the product specifications for compatible wire sizes.
- Copper Wires Only: These connectors are designed for copper-to-copper connections only. Do not use with aluminum wires.
- Secure Connections: Ensure all connections are tight and secure to prevent arcing and overheating.
- Personal Protective Equipment (PPE): Wear appropriate PPE, including safety glasses and insulated gloves, when working with electrical systems.
- Consult an Electrician: If you are unsure about any part of the installation process or local electrical codes, consult a qualified electrician.
3. Installation and Usage
Follow these steps for proper installation of Gardner Bender WingGard Twist-On Wire Connectors:
- Prepare Wires: Turn off power at the circuit breaker. Strip insulation from the ends of the wires to be joined, exposing approximately 1/2 to 5/8 inch of bare copper wire. Ensure the ends are clean and free of nicks.
- Align Wires: Hold the stripped ends of the wires together, ensuring they are aligned evenly.
- Twist Connector: Place the WingGard connector over the aligned wire ends. Twist the connector clockwise firmly until the wires are tightly twisted together and the connector is snug. Ensure no bare wire is exposed below the connector skirt.
- Verify Connection: Gently tug on each wire to ensure it is securely held within the connector. A proper connection will not allow wires to pull out easily.
- Restore Power: Once all connections are made and verified, restore power at the circuit breaker.
Wire Combination Examples:
- Minimum combination: One #10 AWG with one #12 AWG.
- Maximum combination: One #6 STR AWG with two #8 STR AWG.
Video: An official product video demonstrating the features and proper application of Gardner Bender WingGard Twist-On Wire Connectors. The video highlights the ease of use and secure connection provided by the winged design and square wire spring.
4. Maintenance
Gardner Bender WingGard Twist-On Wire Connectors are designed for long-lasting, maintenance-free performance once properly installed. However, periodic inspection of electrical connections is recommended as part of general electrical system maintenance.
- Visual Inspection: Periodically check accessible connections for any signs of damage, discoloration, or loose wires.
- Environmental Protection: Ensure connectors are not exposed to conditions beyond their rated specifications (e.g., excessive moisture for non-WaterGard connectors).
- Re-tightening: If a connection appears loose, turn off power, remove the connector, re-align the wires, and re-twist a new connector firmly. Do not reuse old connectors if they show signs of wear or damage.
5. Troubleshooting
If you encounter issues with your wire connections, consider the following common troubleshooting steps:
- Loose Connection: If a circuit is intermittent or not working, the connection may be loose. Turn off power, remove the connector, ensure wires are properly stripped and aligned, and re-install a new connector firmly.
- Incorrect Wire Gauge: Using a connector that is too small or too large for the wire combination can lead to poor contact or exposed wires. Verify that the correct connector size is used for the specific wire gauges.
- Exposed Bare Wire: If bare wire is visible below the connector skirt, the connection is not safe. Turn off power, remove the connector, and re-install a new connector, ensuring it covers all bare wire.
- Overheating/Discoloration: Signs of overheating (melted plastic, discoloration) indicate a faulty connection or overload. Immediately turn off power and investigate the cause. Replace the connector and address any underlying electrical issues.
- Incompatible Wires: Ensure only copper wires are being connected. These connectors are not suitable for aluminum wires.
6. Specifications
| Specification | Detail |
|---|---|
| Model | 25-089 |
| Brand Name | Gardner Bender |
| Color | Blue |
| Connector Type | Twist-On |
| Wire Gauge Range | 14-6 AWG |
| Minimum Wire Combination | One #10 with one #12 |
| Maximum Wire Combination | One #6 STR with two #8 STR |
| Contact Material | Brass |
| Insulation Material | Non-Insulated (Thermoplastic Shell) |
| Terminal Type | Screw Terminal |
| Temperature Rating | Up to 105°C / 221°F |
| Maximum Voltage | 600V (building wire), 1000V (fixtures/luminaries/signs) |
| Material Type | Plastic |
| Item Weight | 2.4 Ounces |
| Unit Count | 10.0 Count |
| Manufacturer | GB Electrical |
| UPC | 032076002664 |
7. Warranty Information
This product comes with a standard manufacturer's warranty. For specific details regarding warranty coverage, terms, and conditions, please refer to the packaging or contact Gardner Bender customer support directly. Proof of purchase may be required for warranty claims.
8. Support and Contact
For further assistance, technical support, or any questions regarding your Gardner Bender 25-089 WingGard Twist-On Wire Connectors, please visit the official Gardner Bender website or contact their customer service department.
Gardner Bender Official Website: Visit the Gardner Bender Store on Amazon