Introduction
This manual provides comprehensive instructions for the installation, operation, and maintenance of the Hubbell HUBCA320 Cover and Hinge. This product is designed to protect electrical outlets in various applications, ensuring safety and durability.
Safety Information
WARNING: Risk of Electric Shock. Always disconnect power before installing or servicing electrical components.
- Ensure power to the electrical circuit is turned off at the main breaker before any installation or maintenance.
- Consult a qualified electrician if you are unsure about any installation steps or electrical wiring.
- Follow all local and national electrical codes and regulations.
- Do not use this product if it appears damaged or defective.
Package Contents
Verify that all items are present before beginning installation:
- One (1) Hubbell HUBCA320 Cover and Hinge Unit
- One (1) Instruction Guide (this document)
Installation Instructions
The Hubbell HUBCA320 Cover and Hinge is designed for use with specific Hubbell electrical receptacles. Refer to the compatible model numbers listed below to ensure proper fit and function.
Compatible with Grainger Item Numbers:
- 5Z930, 5Z932, 5Z933, 1VCK1, 1VCJ8
Compatible with Hubbell Mfr. Model Numbers:
- HBL316R4W, HBL316C4W, HBL316R6W, HBP316C6W, HBL320R4W, HBL320C4W, HBL320R6W, HBP320R6W, HBL320R7W, HBL320C7W
- Step 1: Disconnect Power. Ensure power to the electrical circuit is turned off at the main breaker before proceeding.
- Step 2: Remove Existing Cover. Carefully remove any existing cover plate from the electrical receptacle.
- Step 3: Align Cover and Hinge. Align the HUBCA320 Cover and Hinge with the mounting holes of the electrical receptacle. Position the hinge mechanism as desired for convenient access.
- Step 4: Secure the Unit. Secure the cover and hinge using appropriate screws (screws are typically provided with the receptacle, not included with this cover). Do not overtighten the screws, as this may damage the unit or the receptacle.
- Step 5: Verify Functionality. Verify that the cover opens and closes smoothly and provides adequate protection to the receptacle when closed.
- Step 6: Restore Power. Once installation is complete and verified, restore power to the electrical circuit at the main breaker.

Image: The Hubbell HUBCA320 Cover and Hinge, shown in gray, featuring its robust design and integrated hinge for protecting electrical outlets. This image illustrates the product's appearance and key components.
Operation
To access the electrical receptacle, gently lift the cover using the integrated hinge. The cover is designed to provide protection to the receptacle when in the closed position, shielding it from dust, debris, and accidental contact.
Maintenance
Regular maintenance ensures the longevity and proper function of your Hubbell HUBCA320 Cover and Hinge.
- Inspection: Periodically inspect the cover and hinge for any signs of damage, cracks, or excessive wear. Replace the unit if significant damage is observed.
- Cleaning: Clean the surface of the cover with a soft, damp cloth. Do not use abrasive cleaners, harsh chemicals, or solvents, as these may damage the finish or material.
- Fastener Check: Periodically check the mounting screws for tightness. Loose screws can affect the cover's stability and protection.
- Hinge Function: Ensure the hinge operates freely without obstruction. If the hinge feels stiff, clean any accumulated dirt or debris. A small amount of silicone-based lubricant can be applied if necessary, avoiding contact with electrical components.
Troubleshooting
Refer to the table below for common issues and their potential solutions.
| Issue | Possible Cause | Solution |
|---|---|---|
| Cover does not close properly | Obstruction or misalignment | Check for debris around the hinge or cover edges. Loosen mounting screws slightly, adjust alignment, then retighten. |
| Hinge feels stiff or squeaks | Dirt accumulation or lack of lubrication | Clean the hinge mechanism thoroughly. Apply a small amount of silicone lubricant to the hinge pivot points if needed. |
| Cover appears loose after installation | Mounting screws are not tight enough | Ensure power is off, then carefully tighten the mounting screws. Do not overtighten. |
Specifications
- Model Number: HUBCA320
- Brand: Hubbell Wiring Device-Kellems
- Product Dimensions: 8 x 4 x 11 inches
- Item Weight: 1.44 ounces
- Country of Manufacture: United States
- Date First Available: August 19, 2013
Warranty and Support
For warranty information, technical assistance, or to inquire about replacement parts, please contact Hubbell Wiring Device-Kellems directly. Refer to the official Hubbell website for the most current contact details and support resources.
Manufacturer: Hubbell Wiring Device-Kellems
Website: www.hubbell.com







