1. Product Overview
The Cooper CS6369 50A Locking Receptacle is a heavy-duty electrical component designed for demanding applications. This 125/250V, 3-Pole, 4-Wire single phase receptacle is compatible with power cable wire ranging from 4 AWG to 8 AWG. It features robust construction and is UL Listed and CSA Approved, ensuring safety and reliability for your electrical connections.

Image 1: The Cooper CS6369 50A Locking Receptacle, showcasing its robust design.
2. Safety Information
WARNING: Electrical shock hazard. Improper installation or use can result in serious injury or death. Always follow these safety guidelines:
- Installation should only be performed by a qualified electrician in accordance with all national and local electrical codes.
- Always disconnect power at the circuit breaker or fuse box before installing, servicing, or removing the receptacle.
- Ensure all wiring connections are secure and properly insulated.
- Do not exceed the specified voltage and amperage ratings of the receptacle.
- Use only compatible plugs and wiring.
3. Setup and Installation
3.1. Wiring Requirements
The CS6369 receptacle is designed for use with 4 AWG to 8 AWG power cable wire. Ensure that the wire gauge used meets the requirements for your specific application and local electrical codes.
3.2. Mounting the Receptacle
- Disconnect Power: Turn off the power supply at the main circuit breaker before beginning any installation.
- Prepare Wires: Strip approximately 3/4 inch of insulation from the ends of the power wires.
- Connect Wires: Connect the appropriate wires to the terminals on the receptacle. The terminals are typically marked for Line 1, Line 2, Neutral, and Ground. Ensure a tight and secure connection for each wire.

Image 2: Close-up view of the receptacle's internal wiring terminals for proper connection.
- Mount Receptacle: Secure the receptacle into a compatible electrical box using the provided mounting screws. Ensure it is firmly seated.
3.3. Connecting the Cover
Once the receptacle is wired and mounted, attach a suitable cover (e.g., a weatherproof cover for outdoor use) over the receptacle and electrical box. This protects the internal components and ensures safety.

Image 3: The CS6369 receptacle shown with a compatible protective cover installed.
4. Operating Instructions
To use the Cooper CS6369 Locking Receptacle:
- Insert Plug: Align the blades of the compatible locking plug with the slots on the receptacle.
- Twist to Lock: Insert the plug fully and then twist it clockwise until it locks securely into place. This ensures a stable and reliable electrical connection.
- Remove Plug: To disconnect, twist the plug counter-clockwise to unlock it, then pull it straight out from the receptacle.
5. Maintenance
Regular maintenance helps ensure the longevity and safe operation of your receptacle:
- Visual Inspection: Periodically inspect the receptacle for any signs of damage, wear, discoloration, or loose connections.
- Cleanliness: Keep the receptacle free from dust, dirt, and moisture. Use a dry, non-abrasive cloth for cleaning. Ensure power is disconnected before cleaning.
- Secure Connections: If accessible and safe to do so (with power disconnected), periodically check that all wire connections are tight.
6. Troubleshooting
If you encounter issues with your CS6369 Locking Receptacle, consider the following:
- No Power: Check the circuit breaker or fuse for the circuit. Ensure it is not tripped or blown. Verify all wiring connections are secure.
- Loose Connection: If the plug feels loose or power is intermittent, ensure the plug is fully inserted and twisted to the locked position. Inspect the receptacle for any damage to the internal contacts.
- Difficulty Inserting Plug: Ensure you are using a compatible locking plug (CS6365C or equivalent). Check for any obstructions in the receptacle slots.
- Overheating: If the receptacle feels hot to the touch, immediately disconnect power and investigate the cause. This could indicate an overload, loose connection, or faulty wiring. Consult a qualified electrician.
7. Specifications
| Feature | Value |
|---|---|
| Manufacturer | Cooper |
| Part Number | CS6369 |
| Item Model Number | CS6369 |
| Amperage | 50 Amp |
| Voltage | 125/250V |
| Phase | Single Phase |
| Poles/Wires | 3-Pole, 4-Wire |
| Compatible Plug | CS6365C |
| Compatible Cable Wire | 4 AWG to 8 AWG |
| Material | Plastic (Heavy-duty) |
| Color | Aluminum |
| Certification | CSA, UL |
| Item Package Quantity | 1 |
| Date First Available | June 1, 2011 |
8. Warranty and Support
For warranty information, technical support, or any questions regarding your Cooper CS6369 50A Locking Receptacle, please contact Cooper customer service directly. Refer to the product packaging or the official Cooper website for the most current contact details and warranty terms.
Manufacturer: Cooper
Website: Visit the Cooper Store on Amazon