1. Product Overview
The Wiremold NMW2-D Nonmetallic Raceway Outlet Box is designed for extending electrical circuits or communication cabling in small surface nonmetallic raceway systems. This solution allows for the addition of fixtures and outlets without the need to disturb drywall, plaster, or insulation. Its low-profile, two-piece design offers a clean appearance that blends with various decors. The nonmetallic material is easier to cut than traditional metal raceway and can be painted or stained to match your interior.

Image 1: Wiremold NMW2-D Nonmetallic Raceway Outlet Box in a typical installation setting.

Image 2: Low profile and customizable solution for extending power and data.
2. Safety Information
WARNING: Always turn off power at the circuit breaker or fuse box before beginning any electrical work. Failure to do so may result in serious injury or death.
- Verify that all power to the outlet you will be working on is off using a voltage detector.
- Consult a qualified electrician if you are unsure about any steps or local electrical codes.
- Ensure all connections are secure before restoring power.
- This product is intended for indoor, dry location use only.
3. What's in the Box
Your Wiremold NMW2-D Nonmetallic Raceway Outlet Box package includes:
- 1 Legrand - Wiremold NMW2-D Raceway Outlet Box
- Accessory pack (includes anchors, screws, wire clips, and joint covers)
4. Tools Required
The following tools are recommended for installation:
- Standard & Long Nose Pliers
- PVC Cutter or Fine Tooth Hacksaw
- Wire Snips
- Wire Stripper
- Standard & Phillips Head Screwdriver
- Tape Measure
- Level & Chalk Line
- Utility Knife
- Drill
- Voltage Detector
5. Setup and Installation
Follow these steps to install your Wiremold NMW2-D Nonmetallic Raceway Outlet Box:
- Turn Off Power: Locate the appropriate circuit breaker for the existing outlet you will be working on and turn off the power.
- Verify Power is Off: Use a voltage detector to confirm that there is no power to the outlet.
- Prepare Starter Box: Using a utility knife, remove the knockouts in the back of the starter box base that match the raceway size you are using. For a clean look, twist the scored knockout inward when removing it.
- Remove Existing Components: Carefully remove the original faceplates and pull out the existing electrical device (outlet or switch) from the wall box.
- Attach Starter Box Base: Securely attach the starter box base over the existing electrical box using the provided screws.
- Measure and Cut Raceway: Measure the required lengths for your raceway runs. Cut the raceway using either a fine-tooth hacksaw or a PVC cutter.
- Install Raceway Bases: Position the raceway bases next to the starter box base. Drill through the raceway base and into the wall to install the anchors provided in the accessory pack. For horizontal runs, space anchors approximately 18 inches apart, and install an anchor half an inch from each end.
- Secure Raceway Bases: Secure the raceway bases to the wall using the provided screws.
- Install Extension Box Base: Install the extension box base where the new power outlet will be located, following the same anchoring and securing steps as for the raceway bases.
- Run Power Wires: Carefully run the power wires along each raceway base. Use the provided wire clips to secure the wires inside the base.
- Make Electrical Connections: Make all necessary electrical connections for the new outlet. Ensure all wires are properly stripped and connected to the correct terminals (hot, neutral, ground).
- Trim Raceway Cover and Install Elbows: Trim the raceway cover as needed to accommodate inside corners, flat elbows, or other fittings. Snap the raceway covers over the bases. Install corner elbows and joint covers if necessary to complete the runs.
- Attach Box Covers and Faceplates: Attach the box covers and faceplates to the starter and extension boxes.
- Restore Power: Once all components are securely installed and connections are verified, turn the power back on at the circuit breaker.
Installation Videos
For a visual guide to the installation process, please refer to the following official videos:
Video 1: Official 'Wiremold Non-Metallic Raceway - How to Install' guide from Wiremold/Legrand. This video demonstrates the complete installation process for the non-metallic raceway system.
Video 2: 'Legrand - Wiremold NMW35 Nonmetallic Raceway Extra Deep Outlet Box' installation overview. This video provides additional insights into installing a Wiremold nonmetallic raceway box.

Image 3: Securing the raceway base to the wall during installation.

Image 4: How the Wiremold raceway system works with different components.
6. Operation
Once properly installed and power is restored, the Wiremold NMW2-D Nonmetallic Raceway Outlet Box functions as a standard electrical outlet. Simply plug in your devices as you would with any wall outlet.
7. Maintenance
The Wiremold NMW2-D Nonmetallic Raceway Outlet Box requires minimal maintenance. Keep the surface clean by wiping with a damp cloth. If you wish to customize its appearance, the raceway can be painted or stained. When staining, use only water or latex-based stains to ensure proper adhesion and finish.

Image 5: The raceway is paintable with latex-based paint to match your decor.
8. Troubleshooting
- No Power to Outlet:
- Check the circuit breaker to ensure power is on.
- Verify all electrical connections are secure within the outlet box and raceway.
- Ensure the voltage detector showed no power before installation, indicating a proper power cut-off.
- Loose Raceway/Box:
- Ensure all screws and anchors are properly installed and tightened.
- If the wall material is soft, consider using different anchors suitable for the substrate.
9. Specifications
| Feature | Detail |
|---|---|
| Product Dimensions | 1 x 3 x 4.75 inches |
| Item Weight | 6.4 ounces |
| Model Number | NMW2-D |
| Brand | Wiremold |
| Color | White |
| Material | Nonmetallic (with metal mounting components) |
| Style | Outlet + Box |
| Installation Type | DIY |

Image 6: Dimensions of the low-profile raceway design.

Image 7: Fill capacity chart for different wire types.
10. Warranty and Support
This Wiremold product is backed by a manufacturer's warranty. For specific warranty details, technical support, or to inquire about replacement parts, please visit the official Legrand Wiremold website or contact their customer service department. Keep your purchase receipt for warranty claims.
Manufacturer: Legrand Wiremold
Website: www.legrand.us/wiremold