1. Product Overview
The Legrand Plexo 070066 is a triple weatherproof, pre-wired, surface-mounted socket designed for robust electrical installations. This unit provides three 16A, 250V outlets with earth connection, suitable for various environments, including those exposed to dust and water.
Key features include:
- Innovative Design: Triple pre-wired socket with protective flap, offering tool-free quick connection and color coding for simplified installation.
- Robustness and Watertightness: Certified IP55 and IK08, resistant to dust, water splashes, and impacts, making it ideal for all environments.
- Technical Specifications: Complete product in anthracite finish, made of halogen-free thermoplastic, with a nominal voltage of 250V and current of 16A.
- Easy Installation: Horizontal surface mounting with a rigid plate and flexible rear seal to compensate for surface irregularities.

Figure 1.1: Front view of the Legrand Plexo 070066 Triple Weatherproof Socket.

Figure 1.2: Close-up view of an open socket with protective flap.
2. Safety Information
Please read all safety instructions carefully before installation and use. Failure to follow these instructions may result in electric shock, fire, or serious injury.
- Electrical Safety: Installation must be performed by a qualified electrician in accordance with local electrical codes and regulations.
- Power Disconnection: Always disconnect power at the main circuit breaker before performing any installation, maintenance, or troubleshooting.
- Water Protection: The product is IP55 rated, meaning it is protected against dust ingress and low-pressure water jets from any direction. Ensure all seals and covers are properly secured after installation to maintain this rating.
- Impact Protection: The product is IK08 rated, providing protection against mechanical impacts. However, avoid excessive force or dropping the unit.
- Material: Made from halogen-free thermoplastic. Do not expose to extreme heat sources or open flames.
- Usage: Do not overload the sockets. Ensure the total current drawn by connected devices does not exceed 16A.
3. Package Contents
Verify that all components are present before beginning installation:
- Legrand Plexo 070066 Triple Weatherproof Socket (Anthracite)
- Mounting Plate (integrated)
- Flexible Rear Seal (integrated)
- Support Encastre 1P Grif Anth (Mounting support, if applicable for specific installation types)
- Installation Guide (this document)
4. Setup and Installation
The Legrand Plexo 070066 is designed for horizontal surface mounting. Follow these steps for a secure and compliant installation:
- Preparation:
- Ensure the main power supply to the installation area is switched off at the circuit breaker.
- Identify the desired mounting location. The surface should be as flat as possible, though the flexible rear seal can compensate for minor irregularities.
- Mounting the Base:
- Separate the front cover from the base unit if necessary.
- Position the base unit on the wall and mark the drilling points for the mounting screws.
- Drill holes and insert appropriate wall plugs (not supplied).
- Secure the base unit to the wall using screws, ensuring it is level and firmly attached. The rigid plate and flexible rear seal will help create a tight fit.
- Wiring Connection:
- The socket is pre-wired for quick, tool-free connection.
- Carefully remove the necessary detachable membranes to allow cable entry, maintaining the IP55 rating.
- Connect the electrical cables (Live, Neutral, Earth) to the corresponding terminals. The terminals are color-coded for easy identification. Ensure all connections are secure.
- Verify that no bare wires are exposed and that the cable glands are tightened to maintain watertightness.
- Final Assembly:
- Reattach the front cover to the base unit, ensuring all clips or screws are securely fastened.
- Confirm that the protective flaps over each socket are functioning correctly and close tightly.
- Testing:
- Restore power at the main circuit breaker.
- Test each socket with a suitable electrical appliance to ensure proper operation.

Figure 4.1: Rear view of the socket showing mounting points and cable entry options.
5. Operating Instructions
Using the Legrand Plexo 070066 socket is straightforward:
- Opening the Flap: Lift the protective flap covering the desired socket.
- Connecting an Appliance: Insert the plug of your electrical appliance into the socket. Ensure it is fully inserted.
- Disconnecting an Appliance: Gently pull the plug out of the socket.
- Closing the Flap: After disconnecting an appliance, ensure the protective flap is closed securely to maintain the IP55 rating and protect against dust and water.
Important: Do not force plugs into the sockets. If a plug does not fit, it may be incompatible or damaged. Do not use damaged plugs or appliances.
6. Maintenance
The Legrand Plexo 070066 socket requires minimal maintenance to ensure long-term performance and safety.
- Cleaning:
- Before cleaning, always disconnect power to the socket at the circuit breaker.
- Wipe the exterior surfaces with a soft, damp cloth. Do not use abrasive cleaners, solvents, or harsh chemicals, as these can damage the plastic finish and seals.
- Ensure the socket is completely dry before restoring power.
- Inspection:
- Periodically inspect the socket for any signs of damage, such as cracks, discoloration, or loose components.
- Check that the protective flaps close securely and that the seals are intact.
- If any damage is observed, disconnect power immediately and have the unit inspected or replaced by a qualified electrician.
- Seals: The flexible rear seal and internal seals are crucial for maintaining the IP55 rating. Do not tamper with or remove these seals.
7. Troubleshooting
If you encounter issues with your Legrand Plexo 070066 socket, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No power from the socket. |
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| Protective flap does not close properly. |
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| Water ingress observed. |
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For issues not listed here or if problems persist, contact Legrand customer support or a qualified electrician.
8. Specifications
| Feature | Detail |
|---|---|
| Model Number | 070066 |
| Brand | Legrand |
| Type | Triple Weatherproof Pre-wired Surface-Mounted Socket |
| Voltage | 250 Volts |
| Current | 16 Amperes |
| Total Sockets | 3 |
| Ingress Protection (IP) Rating | IP55 (Dust protected, protected against low-pressure water jets) |
| Impact Protection (IK) Rating | IK08 (Protected against 5 joules impact) |
| Material | Halogen-free Thermoplastic |
| Color | Anthracite |
| Mounting Type | Surface-mounted, Horizontal |
| Dimensions (L x W x H) | 22.6 x 8.2 x 6.2 cm (approx. 8.9 x 3.2 x 2.4 inches) |
| Weight | 400 grams (approx. 0.88 lbs) |
| Country of Origin | France |
9. Warranty and Support
Legrand products are manufactured to high-quality standards and are covered by a manufacturer's warranty. For specific warranty terms and conditions, please refer to the documentation provided with your purchase or visit the official Legrand website.
For technical assistance, product inquiries, or to report a fault, please contact Legrand customer support:
- Website: www.legrand.com
- Contact Information: Refer to the "Contact Us" section on the Legrand website for local support numbers and email addresses.
When contacting support, please have your product model number (070066) and purchase details readily available.
