ABB - Installation Products 478 - Square Box Surface Cover, 4 Inch Square, 1/8 Inch Raised, Galvanized Steel, For One Four-Wire Twist Lock Receptacle, Opening 1.594 Inch Diameter
ABB - Installation Products

478

UPC: 781720006663


Documents & Media
Specification SheetManufacturer Product Website

Contact for Pricing

Minimum Qty: 100

Multiplier: 100

*Contact for lower quantities*

Overview

The ABB SKU 478 4-inch square galvanized steel surface cover is a precision-engineered electrical mounting solution designed for secure and protective installation of one four-wire twist lock receptacle in industrial, commercial, and construction environments. Constructed from durable galvanized steel, this cover delivers superior corrosion resistance and long-term performance, even in harsh or corrosive conditions. The 4-inch square dimensions and 1/8-inch raised profile ensure a precise fit over standard electrical boxes, providing a clean, professional appearance while maintaining proper clearance for receptacle access and maintenance. The precisely machined opening, measuring 1.594 inches in diameter, is specifically sized to accommodate one four-wire twist lock receptacle, ensuring a snug and secure fit that prevents dust, debris, and accidental contact. This surface cover is ideal for power distribution panels, manufacturing facilities, construction sites, and commercial buildings where reliable protection of electrical components is critical. The robust galvanized steel construction resists environmental factors such as moisture, chemicals, and physical impact, contributing to the longevity and safety of your electrical infrastructure. With a focus on dimensional accuracy and material durability, the SKU 478 meets the demanding requirements of electrical contractors, maintenance professionals, and facility managers seeking dependable, long-lasting electrical components. Its compatibility with standard electrical installations and adherence to professional installation practices make it a trusted choice for maintaining robust electrical systems in both indoor and outdoor applications.
  • 4-inch square galvanized steel construction for superior corrosion resistance
  • 1/8-inch raised profile ensures precise fit and proper clearance
  • Pre-machined 1.594-inch diameter opening for one four-wire twist lock receptacle
  • Ideal for industrial, commercial, and construction environments
  • Durable design resists moisture, chemicals, and physical impact

Specifications

Application
For one four-wire twist-lock receptacle
Color
Silver
Finish
Pre-Galvanized
Material
Galvanized Steel
Material
Steel
Mounting Type
Surface Mount
Poles
4
Series
478
Shape
Square
Size
4 Inches
Size
4" Square
Special Features
Each cover individually packaged with the necessary screws for mounting
Type
Outlet Box Covers
Package Dimensions (L x W x H)
0.01 IN x 0.01 IN x 0.01 IN
Package Dimensions (L x W x H)
0.0254 cm x 0.0254 cm x 0.0254 cm
Package Weight (Imperial)
0.200 L
Package Weight (Metric)
0.091 kg
Square Box Surface Cover, 5 Cubic Inches, 4 Inch Square x 1/2 Inch Deep, Galvanized Steel, For use with One Toggle Switch

RS 9

Square Box Surface Cover, 5 Cubic Inches, 4 Inch Square x 1/2 Inch Deep, Galvanized Steel, For use with One Toggle Switch
Flat Four-Square Cover

FA-403

Flat Four-Square Cover
General Electric Service entrance. Modular meter accessories and renewal parts. Blank meter socket cover - steel.

TMCB322A

General Electric Service entrance. Modular meter accessories and renewal parts. Blank meter socket cover - steel.
Square Box Surface Cover, 4 Inch Square, 1/8 Inch Raised, Galvanized Steel, For One GFI Receptacle

479-GFI

Square Box Surface Cover, 4 Inch Square, 1/8 Inch Raised, Galvanized Steel, For One GFI Receptacle
Square Box Surface Cover, 4 Inch Square, 1/8 Inch Raised, Galvanized Steel, For One Toggle Switch in Center

480-BW

Square Box Surface Cover, 4 Inch Square, 1/8 Inch Raised, Galvanized Steel, For One Toggle Switch in Center
Square Box Surface Cover, 4 Inch Square, 1/8 Inch Raised, Galvanized Steel, For One GFI Receptacle and One Toggle Switch in Center

481-BW

Square Box Surface Cover, 4 Inch Square, 1/8 Inch Raised, Galvanized Steel, For One GFI Receptacle and One Toggle Switch in Center
Square Box Surface Cover, 4 Inch Square, 1/8 Inch Raised, Galvanized Steel, For One GFI Receptacle and One Duplex Receptacle in Center

482-NEC

Square Box Surface Cover, 4 Inch Square, 1/8 Inch Raised, Galvanized Steel, For One GFI Receptacle and One Duplex Receptacle in Center
Square Box Surface Cover, 4 Inch Square, 1/8 Inch Raised, Galvanized Steel, For Two Toggle Switches

476

Square Box Surface Cover, 4 Inch Square, 1/8 Inch Raised, Galvanized Steel, For Two Toggle Switches

Frequently Asked Questions

What material is the surface cover made from?

The surface cover is constructed from galvanized steel, providing superior corrosion resistance and durability.

What are the dimensions of the surface cover?

The cover measures 4 inches square with a 1/8-inch raised profile.

How many receptacles does this cover accommodate?

This cover is designed for one four-wire twist lock receptacle.

What size opening does this cover accommodate?

The cover features a precisely machined opening measuring 1.594 inches in diameter, designed for one four-wire twist lock receptacle.

Is this cover suitable for outdoor use?

Yes, the galvanized steel construction and raised design make it suitable for both indoor and outdoor applications where protection from dust and moisture is required.

Frequently Asked Questions about ABB - Installation Products

How are Thomas and Betts products typically installed?

Thomas and Betts products are installed using a variety of methods tailored to specific applications, including the use of flexible cords and cable fittings, non-metallic cable glands, and armored cable fittings. Proper selection of fittings is crucial to match the cable type and installation environment, ensuring durability and preventing physical damage. Tools such as the Blackburn® Comfort Crimp® and HEX-FLEX® systems enhance installation efficiency and reliability, reducing labor time and ensuring secure connections.

What accessories are available for Thomas and Betts products?

Thomas and Betts offers a comprehensive range of accessories for their products, including various cord and cable fittings, non-metallic cable glands, service entrance cable fittings, and armored cable fittings. Their accessories are designed to enhance installation efficiency and ensure compatibility with different cable types and environmental conditions, providing reliable connections for a wide array of applications.

What environmental ratings do Thomas and Betts products have?

Thomas and Betts products feature robust environmental ratings, including NEMA Type 1, 2, 3, 4, 4X, 12, and 13 certifications, as well as IEC 60529 IP66 protection. These ratings ensure that their products are designed to withstand harsh industrial environments, with capabilities to resist dust, water, and corrosion, and operate effectively in a wide temperature range.

What communication protocols do Thomas and Betts products support?

Thomas and Betts products support a wide range of industrial communication protocols, including Ethernet, DeviceNet, PROFIBUS, Modbus, CANopen, and others. This extensive compatibility ensures seamless integration and reliable communication across various industrial automation systems, catering to diverse application needs.

What are the key features of Thomas and Betts products?

Thomas and Betts products are known for their innovative designs, high performance, and compliance with industry standards such as the National Electrical Code and Underwriters' Laboratories. They offer a comprehensive range of rugged and reliable electrical fittings, including liquidtight and dust-tight connections, which enhance installation efficiency and reduce overall project costs. Their products are engineered for durability in harsh environments, ensuring long-term reliability and lower installed costs.

What are the main product lines offered by Thomas and Betts?

Thomas and Betts offers a comprehensive range of product lines including electrical connectors, cable management systems, grounding and bonding solutions, and industrial automation components. Their products are designed for durability and reliability in demanding industrial environments, ensuring optimal performance and safety across various applications.

What technical support does Thomas and Betts offer?

Thomas and Betts offers comprehensive technical support, including access to field application engineers for onsite training and installation assistance. Their technical support staff is available to address inquiries related to product specifications and installation practices, ensuring optimal performance and safety of electrical systems. Additionally, they provide a variety of training programs to enhance the knowledge and skills of users in the field.

What industries and applications are Thomas and Betts products used for?

Thomas and Betts products are utilized across various industries including electrical construction, industrial automation, telecommunications, and utilities. Their extensive range of cord and cable fittings, electrical boxes, and metal framing systems are designed for applications that require durability and reliability in harsh environments, ensuring optimal performance in both permanent and temporary installations.

What certifications and standards do Thomas and Betts products comply with?

Thomas and Betts products comply with critical international certifications including UL (Underwriters Laboratories), CSA (Canadian Standards Association), and CE (European Community). Our products are designed to meet rigorous industrial standards such as NEMA enclosure ratings and IEC 60529 IP ratings, ensuring safety and reliability across various industrial applications.

What are the main product lines offered by Ocal?

Ocal offers a comprehensive range of corrosion-resistant conduit systems, including PVC-coated conduit and fittings, conduit bodies, hazardous location fittings, and strut accessories. Their products are designed to provide superior corrosion protection, featuring a hot-dipped galvanizing process and UL listed Type 4X PVC-coated conduit bodies, ensuring durability in the most demanding environments.