ABB - Installation Products 3876 - 2-1/2 Inch Threaded Insulated Grounding Bushing, Aluminum, Electro Zinc Plated, Wire Range 14 to 4, Thermoplastic Insulator for Use with Rigid/IMC Conduit
ABB - Installation Products

3876

UPC: 786210038766

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Installation InstructionsSpecification SheetManufacturer Product Website

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Multiplier: 5

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Overview

The ABB 3876 is a 2-1/2 inch threaded insulated grounding bushing designed for use with rigid and intermediate metal conduit (IMC). Manufactured by ABB Installation Products, this bushing provides essential grounding and wire protection in electrical installations. The body is constructed from durable aluminum, offering excellent conductivity and resistance to corrosion. A robust electro zinc plating further enhances its protective qualities, ensuring longevity in various industrial settings. This grounding bushing features a thermoplastic insulator that effectively shields conductors from abrasion and damage as they pass through the conduit opening. This insulation is critical for maintaining the integrity of wiring and preventing short circuits or electrical hazards. The design accommodates wire ranges from 14 AWG to 4 AWG, making it suitable for a variety of electrical circuit sizes. Key specifications include: * **Conduit Size:** 2-1/2 inch threaded * **Material:** Aluminum body with electro zinc plating * **Insulator:** Thermoplastic * **Wire Range:** 14 AWG to 4 AWG * **Compatibility:** Rigid conduit and IMC * **Manufacturer:** ABB - Installation Products * **SKU:** 3876
  • 2-1/2 inch threaded connection for rigid/IMC conduit
  • Durable aluminum construction with electro zinc plating
  • Thermoplastic insulator protects conductors from abrasion
  • Accommodates wire sizes from 14 AWG to 4 AWG
  • Ensures safe and compliant electrical grounding

Specifications

Application
For Quick Installation of Bonding Jumper to Multiple Metal Conduits (Rigid and IMC)
Material
Aluminum
Material
Malleable Iron
Size
2-1/2 Inch
Size
2 1/2 Inch
Standard
UL E3060, CSA
Type
Grounding Bushings & Accessories
Package Dimensions (L x W x H)
6 IN x 4.5 IN x 4 IN
Package Dimensions (L x W x H)
15.24 cm x 11.43 cm x 10.16 cm
Package Weight (Imperial)
0.5600 L
Package Weight (Metric)
0.2540 kg
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How to Install the 3870 Series Threaded Grounding Bushing

This guide provides step-by-step instructions for installing the 3870 Series Threaded Grounding Bushing, including securing it to conduit and connecting the bonding jumper.

Estimated time: 15m

Tools needed:

Screwdriver

Supplies needed:

Conduit, Bonding jumper, Copper or aluminum wire

  1. Thread the bushing onto the conduit

    Thread the grounding bushing onto the conduit until it bottoms. If necessary, the bushing may be backed off slightly to align the lay-in lug in the desired position.

  2. Secure the bushing

    Tighten the set screw to firmly secure the bushing onto the conduit.

  3. Install bonding jumper and connect wire

    Install a bonding jumper (not supplied) into the lay-in lug. Torque the wire clamping screw to the values specified in the provided torque table for the specific wire gauge and material (copper or aluminum).

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.

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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.

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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?

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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.