Eaton Crouse-Hinds 4" Square C...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$51.09
$1.09

Eaton Crouse-Hinds 4" Square Cover, Steel, Flat with 1/2" KO

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Model: TP478
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$51.09
$1.09
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Eaton Crouse-Hinds 4" Square Cover, Steel, Flat with 1/2" KO

Professional-Grade Steel Square Cover for Versatile Electrical Box Applications

The Eaton Crouse-Hinds 4" Square Cover, Steel, Flat with 1/2" KO is a professional-grade electrical cover engineered for reliable protection of 4" square electrical boxes. This steel construction cover delivers superior durability and code compliance for commercial, industrial, and residential electrical installations requiring a clean, flat profile with convenient knockout access.

Key Features & Benefits

Superior Steel Construction

  • Heavy-duty steel material - Provides exceptional strength and impact resistance for long-term protection
  • Corrosion-resistant finish - Ensures reliable performance in various environmental conditions
  • Professional-grade thickness - Maintains structural integrity under mechanical stress and temperature variations
  • Precision manufacturing - Guarantees proper fit and secure mounting on standard 4" square boxes

Versatile Design Features

  • Flat profile design - Creates a clean, finished appearance suitable for exposed installations
  • Pre-punched 1/2" knockout - Enables quick conduit or cable connections without field modifications
  • Standard 4" dimensions - Compatible with all standard 4" square electrical boxes and mounting systems
  • Removable knockout design - Maintains cover integrity when knockout is not needed

Installation Efficiency

  • Standard mounting holes - Accepts #8-32 screws for secure attachment to electrical boxes
  • Lightweight construction - Simplifies handling and installation while maintaining strength
  • Field-removable knockout - Allows on-site customization for specific wiring requirements

Technical Specifications

This square cover features 4" x 4" dimensions with a flat profile measuring 0.06" in height, constructed from durable steel with professional-grade finish. The integrated 1/2" knockout provides convenient access for conduit connections while maintaining NEC/CEC compliance standards. The cover weighs 0.31 pounds and is designed for ordinary/non-hazardous locations with standard #8-32 mounting screw compatibility.

Installation Process

  1. Verify electrical box is properly installed and wiring connections are complete
  2. Remove knockout if conduit or cable connection is required using appropriate knockout removal tools
  3. Position cover over 4" square electrical box ensuring proper alignment with mounting holes
  4. Install #8-32 mounting screws through cover into box mounting threads
  5. Tighten screws evenly to ensure flat, secure mounting without over-torquing
  6. Verify cover is flush and properly seated against box rim for optimal protection

Applications

Perfect for:

  • Commercial Buildings - Office complexes, retail spaces, and professional facilities requiring clean cover solutions
  • Industrial Facilities - Manufacturing plants, warehouses, and processing facilities with exposed electrical systems
  • Residential Projects - Custom homes, apartments, and condominiums with 4" square box installations
  • Institutional Applications - Schools, hospitals, and government buildings requiring durable electrical protection
  • Junction Box Protection - Wire splicing locations requiring accessible yet protected connections
  • Equipment Connections - Motor control centers, panel feeders, and distribution equipment interfaces
  • Conduit Transition Points - Locations requiring direction changes or conduit size modifications
  • Temporary Access Points - Future expansion locations with removable knockout convenience

Square Cover System Benefits

Square covers provide superior protection compared to round covers due to their larger coverage area and multiple mounting points, ensuring better mechanical stability and environmental protection. The flat design eliminates protruding elements that could interfere with equipment placement or create safety hazards in high-traffic areas, while the steel construction offers enhanced fire resistance and impact protection compared to plastic alternatives.

Why Choose Steel Construction?

Steel square covers deliver unmatched durability and longevity in demanding electrical environments. The material's superior strength-to-weight ratio provides excellent protection against mechanical damage while maintaining easy handling during installation. Steel's natural fire resistance and electromagnetic shielding properties make it the preferred choice for professional electrical contractors who demand reliable, long-term performance in critical electrical system applications.

Manufacturer Resources

Product Specs

Area Classification:
Ordinary/Non-Hazardous Locations
Box Size:
4"
Product Height:
.06 in
Product Length Depth:
4 in
Product Weight:
.31 lb
Product Width:
4 in
Standards Type:
NEC/CEC
Product Type:
Square Cover
Product Group:
Electrical Covers
Department:
Electrical
Product Subgroup:
Square Cover
Product Details:
Flat, with 1/2" KO
Product Material:
Steel

Crouse-Hinds TP478 – Frequently Asked Questions

How fast can I get the Crouse-Hinds TP478 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 Crouse-Hinds TP478 come with a warranty?
Absolutely. The Crouse-Hinds TP478 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 Crouse-Hinds TP478?
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 Crouse-Hinds TP478 from ZenSupply?
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