1. Introduction
This manual provides essential information for the safe installation, operation, and maintenance of the Leviton 2445 Industrial Grade Flanged Inlet Locking Receptacle. This device is designed for specific power distribution applications requiring a secure, non-grounding connection.
The Leviton 2445 is an industrial-grade, non-grounding flanged inlet locking receptacle, featuring a durable nylon body and face, and a white finish. It is configured for L18-20P applications with 4 wires, suitable for 120/208 Volt STAR 3-phase systems at 20 Amperes.
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 and must comply with all national and local electrical codes.
- Always disconnect power before installation, inspection, or maintenance.
- Ensure all wiring connections are secure and correctly terminated.
- Do not exceed the specified electrical ratings (20 Amperes, 120/208 Volts).
- This device is non-grounding. Ensure your application is compatible with a non-grounding system.
- Use only with compatible L18-20P locking plugs.
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. Product Overview
The Leviton 2445 is a flanged inlet locking receptacle designed for robust industrial use. Its key features include:
- Body/Face Material: Durable Nylon
- Color: White
- Configuration: L18-20P
- Wiring: 4-wire, 4-pole
- Grounding: Non-grounding type
- Voltage Rating: 120/208 V STAR 3-Phase
- Current Rating: 20 Amperes

Figure 1: Leviton 2445 Flanged Inlet Locking Receptacle. This image displays the white nylon body of the receptacle with the L18-20P pin configuration clearly visible, designed for secure electrical connections.
4. Setup and Installation
Installation of the Leviton 2445 receptacle requires adherence to electrical safety standards and local codes. If you are not familiar with electrical wiring, consult a qualified electrician.
Installation Steps:
- Disconnect Power: Locate the circuit breaker or fuse controlling the power to the installation area and turn it OFF. Verify power is off using a voltage tester.
- Prepare Mounting Surface: Ensure the mounting surface is clean, flat, and provides adequate support for the receptacle.
- Mount the Receptacle: Position the flanged inlet and secure it to the mounting surface using appropriate fasteners (not included).
- Wire Connections: Connect the four wires from the electrical supply to the corresponding terminals on the L18-20P receptacle. Refer to the wiring diagram for the L18-20P configuration. Ensure all connections are tight and secure. This is a non-grounding device.
- Secure Wiring: Ensure all wires are neatly routed and secured within the enclosure, preventing strain on the terminals.
- Restore Power: Once installation is complete and all connections are verified, turn the power back ON at the circuit breaker or fuse box.
5. Operating Instructions
The Leviton 2445 Flanged Inlet Locking Receptacle is designed for simple and secure connection with compatible L18-20P locking plugs.
Connecting a Plug:
- Align the blades of the L18-20P plug with the slots in the receptacle.
- Insert the plug fully into the receptacle.
- Twist the plug clockwise until it locks securely into place. This ensures a positive and reliable connection.
Disconnecting a Plug:
- Twist the plug counter-clockwise to unlock it from the receptacle.
- Pull the plug straight out from the receptacle.
6. Maintenance
Regular inspection and basic maintenance will ensure the longevity and safe operation of your Leviton 2445 receptacle.
- Periodic Inspection: Regularly inspect the receptacle for any signs of physical damage, such as cracks, discoloration, or loose components. Check for any signs of overheating.
- Cleaning: Disconnect power before cleaning. Use a dry, soft cloth to wipe the exterior of the receptacle. Do not use abrasive cleaners or solvents.
- Connection Check: Periodically, with power disconnected, verify that all wire connections are still tight and secure. Loose connections can lead to overheating and potential hazards.
7. Troubleshooting
If you encounter issues with your Leviton 2445 receptacle, consider the following troubleshooting steps. Always disconnect power before inspecting or attempting repairs.
- No Power to Connected Device:
- Check the circuit breaker or fuse for the circuit. Reset if tripped or replace if blown.
- Ensure the plug is fully inserted and locked into the receptacle.
- Verify that the wiring connections at the receptacle are secure (power off).
- Test the connected device with another known working power source.
- Plug Does Not Lock Securely:
- Ensure you are using a compatible L18-20P locking plug.
- Inspect the plug blades and receptacle slots for any obstructions or damage.
- Overheating or Burning Smell:
- Immediately disconnect power.
- This indicates a serious issue. Do not use the receptacle. Contact a qualified electrician for inspection and repair or replacement.
If problems persist after following these steps, contact a qualified electrician or Leviton customer support.
8. Specifications
| Brand | Leviton |
| Model Number | 2445 |
| Product Type | Flanged Inlet Locking Receptacle |
| Product Grade | Industrial |
| Amperage | 20 Amps |
| Voltage Rating | 120/208 V STAR 3-Phase |
| Plug Format | NEMA L18-20P |
| Number of Wires | 4 |
| Number of Poles | 4 |
| Grounding Type | Non-Grounding |
| Body/Face Material | Nylon |
| Color | White |
| Product Dimensions | 2 x 1.75 x 4 inches |
| Item Weight | 2.4 ounces |
| Approvals/Standards | UL 498, CSA C22.2, NOM 057, FS WC596 |
| UPC | 078477806296 |
9. Warranty Information
Leviton's industrial grade locking devices, including the 2445 Flanged Inlet Locking Receptacle, are backed by a manufacturer's lifetime warranty. This warranty covers defects in materials and workmanship under normal use and service. For specific terms and conditions, please refer to the official Leviton warranty documentation or contact Leviton customer support.
10. Support
For technical assistance, installation questions, or warranty claims, please contact Leviton customer support. It is recommended to have your product model number (2445) and purchase information available when contacting support.
You can find contact information on the official Leviton website: www.leviton.com
