ABB - Installation Products PLG4-TB - Recessed Plugs, Gray Iron, Threads (NPT) 1-1/4 Inch with Flush Head for Hazardous and Non Hazardous Locations
ABB - Installation Products

PLG4-TB

UPC: 786210057514

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Overview

The ABB Installation Products PLG4-TB recessed plug is a gray iron threaded closure designed to seal 1-1/4 inch NPT conduit hubs in electrical enclosures. This flush-head plug provides a smooth, low-profile surface once installed, eliminating protrusions that could snag cables or interfere with adjacent components. The gray iron construction delivers corrosion resistance and mechanical strength suitable for both hazardous and non-hazardous industrial environments, including chemical processing, refineries, and manufacturing plants. The PLG4-TB features National Pipe Thread (NPT) threads with a minimum of five full threads per catalog specifications, ensuring a secure mechanical connection with standard conduit fittings. Its integral bushing prevents wire damage during installation and use. The plug meets UL 886 and CSA C22.2 No. 30 standards for hazardous location suitability, including Class I, Division 1 & 2, Groups A-D; Class II, Division 1, Groups E-G; and Class III environments. The gray finish provides a neutral appearance compatible with most industrial equipment. Ideal for closing unused conduit entries in explosion-proof and dust-ignition-proof systems, the PLG4-TB maintains enclosure integrity while preventing environmental ingress. Its recessed design is particularly valuable in space-constrained installations where surface obstructions must be minimized. Compatible with heavy-wall threaded conduit systems, this plug serves as a permanent or temporary closure solution during installation or maintenance operations. Technical specifications include 1-1/4 inch NPT thread size, gray iron material, and flush-head mounting.
  • 1-1/4 inch NPT thread size with minimum five full threads
  • Gray iron construction for corrosion resistance and durability
  • Flush head design minimizes surface protrusions
  • Integral bushing prevents wire damage during installation
  • Gray color for a neutral appearance in industrial settings.

Specifications

Application
To Plug an Unused Threaded Conduit Opening
Color
Gray
Environmental Conditions
For Hazardous and Non-Hazardous Locations
Family Color
Gray
Material
Gray Iron
Material Quality
Iron
Mounting Type
Recessed with Flush Head
Size
1-1/4 Inch
Size
1-1/4 Inch (NPT)
Standard
UL E193396, CSA
Type
Recessed Plugs for Rigid/IMC Conduit
Package Dimensions (L x W x H)
7.3 IN x 5.2 IN x 9 IN
Package Dimensions (L x W x H)
18.542 cm x 13.208 cm x 22.86 cm
Package Weight (Imperial)
0.3200 L
Package Weight (Metric)
0.1450 kg
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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.