ABB - Installation Products MB238ADJ - Single Gang Adjustable Wall Box, 38 Cubic Inches, 3.28 Inches Long x 4.01 Inches Wide x 3.52 Inches Deep, 1/2 Inch Knockouts, Pre-Galvanized Steel, For use with 4 Inch Square Boxes
ABB - Installation Products

MB238ADJ

UPC: 034481193449


Documents & Media
BrochureSpecification SheetManufacturer Product Website

Contact for Pricing

Minimum Qty: 12

Multiplier: 12

*Contact for lower quantities*

Overview

The ABB MB238ADJ Single Gang Adjustable Wall Box delivers precise depth adjustment and robust electrical enclosure for demanding installations. Engineered for compatibility with 4-inch square boxes, this pre-galvanized steel device box offers 38 cubic inches of internal volume (4.01" W x 3.28" H x 3.52" D) to accommodate complex wiring configurations. Its unique Adjust-A-Box® system allows installers to fine-tune box depth after wall covering installation via a simple screw adjustment, eliminating the need for pre-installation measurements and reducing callbacks. Designed for versatility, the MB238ADJ supports multiple cable types including non-metallic cable, flexible metal cable, and EMT conduit, with eight strategically placed 1/2-inch knockouts for efficient conduit routing. A pre-installed ground screw ensures immediate grounding capability, while integrated clamps secure non-metallic cable runs. The box mounts square and secure to studs, maintaining alignment even after depth adjustments. Ideal for commercial, industrial, and residential applications where wall thickness varies or future modifications are anticipated, this adjustable wall box simplifies retrofits and new construction alike. Its pre-galvanized steel construction resists corrosion in moisture-prone environments, extending service life in harsh conditions. With a standard carton weight of 17.60 lbs and packaging for 12 units, the MB238ADJ balances performance with logistical efficiency for electrical contractors managing large-scale projects.
  • 38 cubic inches internal volume (4.01" W x 3.28" H x 3.52" D)
  • Adjust-A-Box® system enables post-installation depth adjustment via screw mechanism
  • Eight 1/2-inch knockouts for EMT, MC cable, and flexible metal conduit
  • Pre-installed ground screw and integrated non-metallic cable clamps
  • Compatible with 4-inch square boxes; mounts securely to studs

Specifications

Application
Accommodates non-metallic cable (NMSC), flexible cable (ACC/MC) and EMT (Conduit)
Color
Silver
Cubic Capacity
38 in3
Depth
3.52 in
Depth
89.408 mm
Knockouts
8
Material
Steel
Material Quality
Steel
Number Of Outlet
1
Size
3.28 Inches Length x 4.01 Inches Width x 3.52 Inches depth
Special Features
Patented adjustment screw
Type
Outlet 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)
1.410 L
Package Weight (Metric)
0.640 kg
Single Gang Adjustable Wall Box, 20 Cubic Inches, 3.28 Inches Long x 2.20 Inches Wide x 3.52 Inches Deep, 1/2 Inch Knockouts, Pre-Galvanized Steel, For use with 4 Inch Square Boxes, pack of 6, for Retail

MB120ADJ-6R

Single Gang Adjustable Wall Box, 20 Cubic Inches, 3.28 Inches Long x 2.20 Inches Wide x 3.52 Inches Deep, 1/2 Inch Knockouts, Pre-Galvanized Steel, For use with 4 Inch Square Boxes, pack of 6, for Retail
Octagon Box, 15.8 Cubic Inches, 4 Inch Diameter x 1-1/2 Inches Deep, 1/2 Inch and 3/4 Inch Knockouts, Red, Pre-Galvanized Steel, Drawn Construction, For use with Conduit

54151 1/23/4RD

Octagon Box, 15.8 Cubic Inches, 4 Inch Diameter x 1-1/2 Inches Deep, 1/2 Inch and 3/4 Inch Knockouts, Red, Pre-Galvanized Steel, Drawn Construction, For use with Conduit
Octagon Box, 22.5 Cubic Inches, 4 Inch Diameter x 2-1/8 Inches Deep, 1/2 Inch and 3/4 Inch Knockouts, Red, Pre-Galvanized Steel, Drawn Construction, For use with Conduit

54171-1234RD

Octagon Box, 22.5 Cubic Inches, 4 Inch Diameter x 2-1/8 Inches Deep, 1/2 Inch and 3/4 Inch Knockouts, Red, Pre-Galvanized Steel, Drawn Construction, For use with Conduit
Square Box, 30.3 Cubic Inches, 4 Inch Square x 2-1/8 Inches Deep, 3/4 Inch Eccentric Knockouts, Pre-Galvanized Steel, Welded Construction, with CV Bracket, For use with Conduit

52171 CV 3/4

Square Box, 30.3 Cubic Inches, 4 Inch Square x 2-1/8 Inches Deep, 3/4 Inch Eccentric Knockouts, Pre-Galvanized Steel, Welded Construction, with CV Bracket, For use with Conduit
Square Box, 30.3 Cubic Inches, 4 Inch Square x 2-1/8 Inch Deep, 1/2 Inch and 3/4 Inch Eccentric Knockouts, Galvanized Steel, Welded Construction, SSX Wrap Mount Bracket and 10-1/2 Inch #12 AWG Solid Ground Wire Pigtail, For Use with Conduit

52171-EW-SSX-SP

Square Box, 30.3 Cubic Inches, 4 Inch Square x 2-1/8 Inch Deep, 1/2 Inch and 3/4 Inch Eccentric Knockouts, Galvanized Steel, Welded Construction, SSX Wrap Mount Bracket and 10-1/2 Inch #12 AWG Solid Ground Wire Pigtail, For Use with Conduit
Square Box, 29.5 Cubic Inches, 4-11/16 Inches Square x 1-1/2 Inches Deep, 1/2 Inch and 3/4 Inch Eccentric Knockouts, Pre-Galvanized Steel, Welded Construction, with Metal Stud Bracket, For use with Conduit

72151 MS 1/2 3/4

Square Box, 29.5 Cubic Inches, 4-11/16 Inches Square x 1-1/2 Inches Deep, 1/2 Inch and 3/4 Inch Eccentric Knockouts, Pre-Galvanized Steel, Welded Construction, with Metal Stud Bracket, For use with Conduit
Square Box, 42 Cubic Inches, 4-11/16 Inches Square x 2-1/8 Inches Deep, 1/2 Inch and 3/4 Inch Eccentric Knockouts, Pre-Galvanized Steel, Welded Construction, with Metal Stud Bracket, For use with Conduit

72171 MS 1/2 3/4

Square Box, 42 Cubic Inches, 4-11/16 Inches Square x 2-1/8 Inches Deep, 1/2 Inch and 3/4 Inch Eccentric Knockouts, Pre-Galvanized Steel, Welded Construction, with Metal Stud Bracket, For use with Conduit
Square Box, 30.3 Cubic Inches, 4 Inch Square x 2-1/8 Inch Deep, 1/2 Inch and 3/4 Inch Eccentric Knockouts, Pre-Galvanized Steel, Welded Construction, MS Bracket and Armored Cable Clamp (C-3), For use with armored/metal clad cable.

52171 MSX

Square Box, 30.3 Cubic Inches, 4 Inch Square x 2-1/8 Inch Deep, 1/2 Inch and 3/4 Inch Eccentric Knockouts, Pre-Galvanized Steel, Welded Construction, MS Bracket and Armored Cable Clamp (C-3), For use with armored/metal clad cable.

Frequently Asked Questions

What is the volume of the MB238ADJ box?

The MB238ADJ box has a volume of 38 cubic inches.

What types of cables can the MB238ADJ accommodate?

The MB238ADJ accommodates non-metallic cable, flexible metal cable, and EMT.

What is the size of the MB238ADJ box?

The MB238ADJ box measures 4.01 inches wide, 3.28 inches high, and 3.52 inches deep.

How does the Adjust-A-Box allow for depth adjustment?

The Adjust-A-Box features a patented design that enables depth adjustment with the turn of a screw.

How many knockouts does the MB238ADJ have?

The MB238ADJ has 8 knockouts for ½ inch cable.

What is included with the MB238ADJ box?

The MB238ADJ box comes with a pre-installed ground screw.

What is the standard package weight of the MB238ADJ?

The standard package weight of the MB238ADJ is 17.60 lbs.

How many units are in a standard package of MB238ADJ?

There are 12 units in a standard package of MB238ADJ.

Is the MB238ADJ suitable for high-voltage applications?

Yes, the MB238ADJ accommodates both high- and low-voltage applications.

Can the MB238ADJ be removed for wall access?

Yes, the MB238ADJ can be removed easily to enable inner wall access.

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.