ABB - Installation Products 3-MB - Three Gang Masonry Box, 71.0 Cubic Inches, 3-3/4 Inches Long x 5-1/2 Inches Wide x 3-1/2 Inches Deep, 1/2 Inch and 3/4 Inch Concentric Knockouts, Galvanized Steel, Welded Construction, For use with Conduit
ABB - Installation Products

3-MB

UPC: 781720004959


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Overview

The ABB 3-MB Three Gang Masonry Box is engineered for robust electrical installations in demanding industrial and commercial environments. This high-quality enclosure, manufactured by ABB - Installation Products, offers superior durability and reliability for conduit applications. Constructed from heavy-duty galvanized steel with a precision welded design, the 3-MB ensures exceptional strength and resistance to corrosion, making it ideal for long-term performance in challenging settings. With a substantial internal volume of 71.0 cubic inches, this three-gang masonry box provides ample space for wiring, connections, and the management of multiple conduit runs. Its generous dimensions of 3-3/4 inches long by 5-1/2 inches wide by 3-1/2 inches deep accommodate complex electrical layouts. The box features strategically placed 1/2 inch and 3/4 inch concentric knockouts, offering versatile and flexible conduit entry options to suit various installation requirements. This feature simplifies the connection process and ensures compatibility with a wide range of conduit sizes. Designed specifically for masonry applications, the ABB 3-MB ensures secure and stable mounting within concrete, brick, or block walls. Its welded construction guarantees structural integrity and a professional finish. This electrical box is an essential component for professionals seeking reliable and efficient solutions for power distribution, control systems, and data cabling in industrial facilities, commercial buildings, and infrastructure projects. Key features include: * **Material:** Galvanized Steel for enhanced durability and corrosion resistance. * **Construction:** Welded for superior strength and longevity. * **Capacity:** 71.0 Cubic Inches, providing ample space for wiring and connections. * **Dimensions:** 3-3/4" L x 5-1/2" W x 3-1/2" D. * **Knockouts:** 1/2" and 3/4" concentric knockouts for flexible conduit entry. * **Application:** Specifically designed for use with conduit in masonry installations.
  • Durable galvanized steel construction for corrosion resistance.
  • Welded design ensures superior strength and longevity.
  • 71.0 cubic inch capacity provides ample wiring space.
  • Includes 1/2 inch and 3/4 inch concentric knockouts for flexible conduit connections.
  • Designed for secure and reliable installation in masonry applications.

Specifications

Application
For use with conduit
Color
Silver
Construction
Welded
Cubic Capacity
71 cu in
Knockouts
16
Material
Galvanized Steel
Material
Steel
Number Of Outlet
3
Size
3-3/4 Inches Length x 5-1/2 Inches Width x 3-1/2 Inches Depth
Size
71.0 Cubic Inches, 3-3/4 Inches Long x 5-1/2 Inches Wide x 3-1/2 Inches Deep
Standard
UL E2969
Standard
UL E2969 / UL E2969
Type
Masonry Boxes
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)
1.500 L
Package Weight (Metric)
0.680 kg
Single Gang Masonry Box, 22.0 Cubic Inches, 3-3/4 Inches Long x 1-7/8 Inches Wide x 3-1/2 Inches Deep, 1/2 Inch and 3/4 Inch Concentric Knockouts, Galvanized Steel, Welded Construction, For use with Conduit

1-MB

Single Gang Masonry Box, 22.0 Cubic Inches, 3-3/4 Inches Long x 1-7/8 Inches Wide x 3-1/2 Inches Deep, 1/2 Inch and 3/4 Inch Concentric Knockouts, Galvanized Steel, Welded Construction, For use with Conduit
Four Gang Masonry Box, 93.5 Cubic Inches, 3-3/4 Inches Long x 7-3/8 Inches Wide x 3-1/2 Inches Deep, 1/2 Inch and 3/4 Inch Concentric Knockouts, Galvanized Steel, Welded Construction, For use with Conduit

4-MB

Four Gang Masonry Box, 93.5 Cubic Inches, 3-3/4 Inches Long x 7-3/8 Inches Wide x 3-1/2 Inches Deep, 1/2 Inch and 3/4 Inch Concentric Knockouts, Galvanized Steel, Welded Construction, For use with Conduit
Four Gang Shallow Masonry Box, 64.0 Cubic Inches, 3-3/4 Inches Long x 7-3/8 Inches Wide x 2-1/2 Inches Deep, 1/2 Inch and 3/4 Inch Concentric Knockouts, Galvanized Steel, Welded Construction, For use with Conduit

4-MBS

Four Gang Shallow Masonry Box, 64.0 Cubic Inches, 3-3/4 Inches Long x 7-3/8 Inches Wide x 2-1/2 Inches Deep, 1/2 Inch and 3/4 Inch Concentric Knockouts, Galvanized Steel, Welded Construction, For use with Conduit
Gangable Masonry Box, 64.0 Cubic Inches, 3-3/4 Inches Long x 7-3/8 Inches Wide x 2-1/2 Inches Deep, 1/2 Inch and 3/4 Inch Knockouts, Pre-Galvanized Steel, For use with Conduit

GW 425 G

Gangable Masonry Box, 64.0 Cubic Inches, 3-3/4 Inches Long x 7-3/8 Inches Wide x 2-1/2 Inches Deep, 1/2 Inch and 3/4 Inch Knockouts, Pre-Galvanized Steel, For use with Conduit
Single Gang Masonry Box, 16.5 Cubic Inches, 3-3/4 Inches Long x 1-7/8 Inches Wide x 2-1/2 Inches Deep, 1/2 Inch and 3/4 Inch Concentric Knockouts, Galvanized Steel, Welded Construction, For use with Conduit

1-MBS

Single Gang Masonry Box, 16.5 Cubic Inches, 3-3/4 Inches Long x 1-7/8 Inches Wide x 2-1/2 Inches Deep, 1/2 Inch and 3/4 Inch Concentric Knockouts, Galvanized Steel, Welded Construction, For use with Conduit
Two Gang Masonry Box, 46.8 Cubic Inches, 3-3/4 Inches Long x 3-3/4 Inches Wide x 3-1/2 Inches Deep, 1/2 Inch and 3/4 Inch Concentric Knockouts, Galvanized Steel, Welded Construction, For use with Conduit

2-MB

Two Gang Masonry Box, 46.8 Cubic Inches, 3-3/4 Inches Long x 3-3/4 Inches Wide x 3-1/2 Inches Deep, 1/2 Inch and 3/4 Inch Concentric Knockouts, Galvanized Steel, Welded Construction, For use with Conduit
Octagon Concrete Box, 41 Cubic Inches, 4 Inch Diameter x 3-1/2 Inch Depth, 3/4 Inch and 1 Inch Knockouts, Pre-Galvanized Steel, Drawn Construction, For use with Conduit

54561 3/4 1

Octagon Concrete Box, 41 Cubic Inches, 4 Inch Diameter x 3-1/2 Inch Depth, 3/4 Inch and 1 Inch Knockouts, Pre-Galvanized Steel, Drawn Construction, For use with Conduit
Octagon Concrete Box, 58 Cubic Inches, 4 Inch Diameter x 5 Inch Depth, 1/2 Inch and 3/4 Inch Knockouts, Pre-Galvanized Steel, Drawn Construction, For use with Conduit

54581 1/2 3/4

Octagon Concrete Box, 58 Cubic Inches, 4 Inch Diameter x 5 Inch Depth, 1/2 Inch and 3/4 Inch Knockouts, Pre-Galvanized Steel, Drawn Construction, For use with Conduit

Frequently Asked Questions about ABB - Installation Products

How are Thomas and Betts products typically installed?

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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.