Carlon 4-Inch Square 2-Gang No...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$4.98
Carlon 4-Inch Square 2-Gang Non-Metallic Outlet Box Cover

Carlon 4-Inch Square 2-Gang Non-Metallic Outlet Box Cover

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Model: A420

In Stock (leaves warehouse same day if ordered before 3pm ET)

$4.98
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Thomas & Betts Outlet Box Cover 4-Inch Square 0.5-Inch Raised 2-Gang Non-Metallic

Professional Electrical Box Cover Solution

The Thomas & Betts Outlet Box Cover delivers reliable electrical box protection for 4-inch square electrical installations. This non-metallic outlet box cover provides dependable performance designed for electrical contractors, industrial facilities, and commercial installations, offering the trusted performance and quality that professionals expect from America's established electrical infrastructure manufacturer.

Professional Features & Benefits

Electrical Box Protection

  • 4-Inch Square Design - Provides complete coverage for standard 4-inch square electrical boxes with precise fit and professional appearance
  • 0.5-Inch Raised Profile - Accommodates device mounting and wiring connections while maintaining proper electrical clearances
  • 2-Gang Configuration - Supports dual device installations for switches, outlets, and electrical components in commercial and residential applications
  • Non-Metallic Construction - Delivers reliable electrical insulation properties and corrosion resistance for long-term electrical system protection

Professional Installation

  • Square Shape Compatibility - Engineered for precise fit with standard 4-inch square electrical boxes and mounting systems
  • UL Listed Performance - Meets electrical safety standards for professional electrical installations and code compliance
  • Volume Capacity - Provides 6.1 cubic inches of internal volume for proper wire management and electrical connections

Technical Specifications

Product Type: Outlet Box Cover, Shape: Square, Material: Non-Metallic, Department: Electrical, Product Group: Electrical Boxes, Product Subgroup: Box Covers, Color: Blue, Volume: 6.1 cubic inches, Standards: UL E11461, Number of Gangs: 2-Gang Configuration, Raised Profile: 0.5-Inch

Installation & Usage

  1. Verify proper 4-inch square electrical box installation and secure mounting
  2. Ensure all electrical connections are properly terminated and positioned within box volume
  3. Position cover over electrical box ensuring proper alignment with mounting holes
  4. Secure cover using appropriate electrical box mounting screws
  5. Verify proper fit and electrical clearances for device installations
  6. Test electrical connections and ensure proper grounding per electrical codes

Professional Applications

Ideal for:

  • Commercial Electrical Systems - Office buildings, retail facilities, and commercial construction projects requiring reliable electrical box protection
  • Industrial Installations - Manufacturing facilities, warehouses, and industrial electrical systems with 4-inch square box requirements
  • Residential Construction - New home construction and electrical renovations requiring professional-grade electrical box covers
  • Electrical Contractor Applications - Professional electrical installations requiring UL-listed electrical box protection components
  • Facility Maintenance - Electrical system upgrades and maintenance projects in commercial and industrial facilities
  • Electrical Infrastructure Projects - Large-scale electrical installations requiring standardized electrical box protection solutions
  • Switch and Outlet Installations - Dual device mounting applications requiring 2-gang electrical box cover protection
  • Code Compliance Projects - Electrical installations requiring UL-listed components for electrical code compliance

Non-Metallic Construction Advantage

Thomas & Betts non-metallic construction provides excellent electrical insulation properties and corrosion resistance, making this outlet box cover ideal for electrical applications where metallic components may present grounding concerns or corrosive environment challenges, while maintaining the structural integrity and professional appearance required for commercial and industrial electrical installations.

Why Choose Thomas & Betts Quality?

Thomas & Betts brings decades of established experience in electrical infrastructure solutions, with a commitment to professional quality standards and trusted reliability that electrical contractors and facility managers depend on. This outlet box cover represents the company's dedication to providing electrical components that meet rigorous electrical safety standards while delivering the consistent performance and durability that professional electrical installations require.

Manufacturer Resources

Spec Sheet

Product Specs

Idea Granular Category Code Igcc:
4425 >> Electrical box covers
Department:
Electrical
Product Type:
Outlet Box Covers
Number Of Knockouts:
0
Product Material:
Non-Metallic
Product Color:
Blue
Standards:
UL E11461
Product Shape:
Square
Product Group:
Boxes & Enclosures
Product Subgroup:
Box Covers

Carlon A420 – Frequently Asked Questions

1) Will the Carlon A420 cover fit a standard 4-inch square box?
Yes. The Carlon A420 is a square, two-gang raised cover made to sit on a standard 4-inch square box and line up with the box's mounting holes. It is non-metallic and blue, matching Carlon's non-metallic box line.
2) What is the difference between the Carlon A420 and A421 box covers?
Raised depth is the only difference. The A420 is a 1/2 inch raised cover; the A421 is 5/8 inch raised. Pick the deeper 5/8 inch version when your devices and conductors need a little more room or when the cover has to make up extra depth to the finished wall surface.
3) How much box fill volume does the 1/2 inch raised 4-inch square two-gang cover add?
The 1/2 inch raised cover adds 6.1 cubic inches of volume, which counts toward your box fill calculation on top of the box itself. That extra volume is often what lets a crowded two-gang 4-inch square box pass fill.
4) Can I mount two switches or receptacles on the Carlon A420 cover?
Yes, it is a two-gang cover, so you can mount two devices side by side (any combination of switches, receptacles, or similar devices) on a single 4-inch square box.
5) Does the A420 cover come with knockouts for conduit?
No. The cover has zero knockouts, so it is a solid two-gang device cover only. Any conduit or cable entry has to come through the box itself, not the cover.
6) Why use a non-metallic cover instead of a steel raised cover on a 4-inch square box?
Non-metallic is the choice where a metal cover would create grounding concerns or corrode, such as damp or chemically aggressive areas, and it pairs naturally with non-metallic PVC boxes and raceway. If your box is steel and part of a metallic grounding path, a matching steel raised cover is the more conventional pick.
7) Are mounting screws included with the Carlon A420 cover?
Install calls for securing the cover with appropriate electrical box mounting screws, so plan on using the screws supplied with the box or standard 6-32 box screws rather than assuming they come with the cover.
How fast can I get the Carlon A420 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Carlon A420 come with a warranty?
Absolutely. The Carlon A420 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Carlon A420?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Carlon A420 from ZenSupply?
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