1. Introduction
The Leviton T5820-W 20 Amp Tamper-Resistant Duplex Outlet is designed for reliable performance in residential and commercial settings. Its impact-resistant thermoplastic construction ensures durability and a long service life. This outlet features a 20 Amp, 125 Volt rating, is tamper-resistant, straight blade, residential grade, and self-grounding.
Key Features:
- Tamper-Resistant: Provides protection from electrical shocks by preventing insertion of foreign objects.
- Durable Construction: Made from impact-resistant thermoplastic nylon for extended service life.
- Easy Installation: Designed with side wiring for straightforward setup.
- NEC Compliant: Features a TR symbol on the strap, confirming compliance with the latest National Electrical Code requirements.

Figure 1: Front and back view of the Leviton T5820-W Duplex Outlet, highlighting its design and wiring terminals.
2. Safety Information
WARNING: To avoid fire, shock, or death, always turn OFF power at the circuit breaker or fuse box before wiring. Installation should be performed by a qualified electrician if you are unsure about the process. Use this device with copper wire only.
Proposition 65 Warning: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
3. What's in the Box
- Leviton T5820-W 20 Amp Tamper-Resistant Duplex Outlet (White)
4. Installation
Pre-Installation Steps:
- Turn off power at the circuit breaker or fuse box.
- Remove the existing wall plate and outlet.
- Carefully disconnect the wires from the old outlet, noting their connections (hot, neutral, ground).
Wiring Methods:
The Leviton T5820-W outlet supports Quickwire terminations and traditional side wiring. Always ensure connections are secure.
Quickwire Termination:
For Quickwire terminations, only 14-gauge solid copper wire is permitted by UL standards. Insert the stripped end of the 14-gauge solid copper wire into the Quickwire hole until it is firmly seated.
Side Wiring:
For larger than 14-gauge wire or stranded wire, use the side wiring method. Wrap the stripped end of the wire clockwise around the appropriate terminal screw (brass for hot, silver for neutral, green for ground) and tighten the screw securely.
Back Wiring:
If available on your specific model, back wiring involves inserting the stripped wire into a hole next to the screw and tightening the screw to clamp the wire. This method is also suitable for larger gauge or stranded wires.
Video 1: Leviton Answer Series - Quickwire Terminations. This video provides a visual guide on how to properly use Quickwire terminations, emphasizing the requirement for 14-gauge solid copper wire and demonstrating alternative wiring methods like side wiring for other wire types.
Post-Installation Steps:
- Once wired, carefully push the outlet back into the wall box.
- Secure the outlet to the wall box with the mounting screws.
- Install the wall plate.
- Restore power at the circuit breaker or fuse box.
- Test the outlet to ensure proper function.

Figure 2: The Leviton T5820-W Duplex Outlet shown installed with a standard white wall plate.
5. Operation
The Leviton T5820-W Tamper-Resistant Duplex Outlet functions as a standard electrical receptacle. To use, simply insert a compatible electrical plug into either of the two outlets. The tamper-resistant shutters will open only when a two-pronged or three-pronged plug is inserted simultaneously, providing an added layer of safety.
6. Maintenance
This outlet requires minimal maintenance. To clean, ensure power is off at the circuit breaker. Wipe the surface with a soft, damp cloth. Do not use abrasive cleaners or solvents, as these may damage the finish or internal components.
7. Troubleshooting
Outlet Not Providing Power:
- Check Circuit Breaker: Ensure the circuit breaker supplying power to the outlet is in the "ON" position. If it has tripped, reset it.
- Verify Wiring: If the issue persists, turn off power at the breaker and re-check all wire connections to ensure they are secure and correctly installed.
- Consult an Electrician: If you are unable to resolve the issue, contact a qualified electrician for assistance.
Difficulty Inserting Plug:
- This is a feature of the tamper-resistant design. Ensure you are inserting the plug straight and applying even pressure to both prongs simultaneously.
8. Specifications
| Feature | Detail |
|---|---|
| Model Number | T5820-W |
| Brand | Leviton |
| Voltage | 125 Volts |
| Amperage | 20 Amp |
| Color | White |
| Material | Thermoplastic Nylon |
| Product Dimensions | 4 x 2 x 2 inches |
| Item Weight | 1.76 ounces |
| Compatible Devices | All |
| Date First Available | April 1, 2010 |
9. Warranty and Support
Specific warranty information for the Leviton T5820-W outlet was not provided in the source data. For detailed warranty terms, technical support, or further assistance, please visit the official Leviton website or contact their customer service department.





