Leviton 2731 30 Amp, 480 Volt 3-Phase Locking Plug Instruction Manual

1. Introduction

This manual provides detailed instructions for the safe and proper installation, operation, and maintenance of your Leviton 2731 30 Amp, 480 Volt 3-phase, NEMA L16-30P Locking Plug. Please read this manual thoroughly before beginning any work with the device.

2. Safety Instructions

WARNING: SHOCK HAZARD. To avoid risk of serious injury or death, turn power off at the circuit breaker before wiring any electrical device.

• Always ensure power is disconnected before installation or maintenance.
• Use appropriate personal protective equipment (PPE) when working with electrical components.
• All wiring must comply with national and local electrical codes.
• If unsure about any part of the installation, consult a qualified electrician.

3. Product Overview

The Leviton 2731 is an industrial-grade, grounding, locking plug designed for 30 Amp, 480 Volt 3-phase applications. It features rugged nylon construction for durability and one-piece contacts to reduce friction and overheating.

3.1. Components

The plug consists of a body housing, a faceplate with locking blades, and a strain relief mechanism.

3.2. Product Images

Figure 1: Front view of the Leviton 2731 Locking Plug, showing the robust black body and the brass locking blades.

Figure 2: Side view of the Leviton 2731 Locking Plug, highlighting the white strain relief and the screws for assembly.

Figure 3: Close-up of the faceplate, showing the NEMA L16-30P, 30A, 480V markings, which indicate the plug's configuration, amperage, and voltage.

4. Setup and Wiring Instructions

Follow these steps to properly wire your Leviton 2731 Locking Plug. Ensure all safety precautions are observed.

4.1. Preparation

1. Before wiring, ensure the power to the cable is OFF at the circuit breaker.
2. Identify the NEMA configuration, amperage, and voltage stamped on the faceplate of the plug.
3. Using a Phillips head screwdriver, loosen the quick screws on the faceplate and remove the faceplate from the body housing.
4. Loosen the two strain relief screws on the strain relief.
5. Feed your cable through the strain relief and the body housing.

4.2. Wire Stripping

6. Strip the cord jacket according to the diagram found on the instruction sheet. Your leads should be roughly 1.5 inches long.
7. Remove the cord jacket to expose the individual wires.
8. Cut the green (ground) wire to be approximately 1 inch long.
9. Strip all remaining wires approximately 5/8 of an inch using wire strippers.

4.3. Wire Connection

10. Loosen all terminal screws on the faceplate. The green ground screw is in the center of the device.
11. Insert the green (ground) wire into the wire well of the green ground screw terminal and tighten the terminal screw.
12. Insert the white (neutral) wire into the wire well of the silver terminal screw and tighten the terminal screw.
13. Connect the remaining three wires into the wire wells of the brass terminals and tighten the terminal screws.

4.4. Assembly

14. Slide the faceplate into the body housing, aligning the channel guide on the body housing with the faceplate.
15. Tighten the quick screws on the faceplate.
16. Tighten both screws on the strain relief to secure the cable.

4.5. Wiring Demonstration Video

5. Operating Instructions

Once properly wired, the Leviton 2731 Locking Plug is ready for use. Insert the plug into a compatible NEMA L16-30R receptacle and twist to lock it securely in place. Ensure a firm connection before applying power.

6. Maintenance

Regular inspection of the plug and cable is recommended to ensure safe operation. Check for any signs of wear, damage, or loose connections. Clean the exterior with a dry cloth as needed. Do not use abrasive cleaners or solvents.

7. Troubleshooting

7.1. No Power

• Ensure the circuit breaker supplying power to the receptacle is in the ON position.
• Verify all wire connections within the plug are secure and properly terminated.
• Check the receptacle for proper wiring and functionality.

7.2. Loose Connection

• Ensure the plug is fully inserted and twisted into the receptacle to engage the locking mechanism.
• Check the strain relief screws to ensure the cable is securely clamped.
• Inspect the internal wire terminals for tightness.

8. Specifications

9. Warranty and Support

Leviton's industrial grade plugs and connectors are backed by a lifetime warranty, ensuring long-lasting reliability and superior performance.

For technical support, troubleshooting assistance, or warranty claims, please visit the official Leviton website or contact their customer service department. You can find more information and products at the Leviton Store on Amazon.