Thomas & Betts Insulated Groun...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$44.65
Thomas & Betts Insulated Grounding Bushing - 8-2/0 AWG Wire Range

Thomas & Betts Insulated Grounding Bushing - 8-2/0 AWG Wire Range

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Model: 3861

In Stock (leaves warehouse same day if ordered before 3pm ET)

$44.65
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Thomas & Betts 1-1/2 Inch Insulated Grounding Bushing with 8-2/0 Wire Range

Professional Electrical Grounding Solution for Secure Connections

The Thomas & Betts 1-1/2 inch insulated grounding bushing delivers reliable electrical grounding performance with malleable iron construction. Designed to accommodate wire sizes from 8 AWG to 2/0 AWG, this professional-grade bushing provides secure grounding connections for electrical installations requiring dependable performance and code compliance.

Professional Features & Benefits

  • 1-1/2 Inch Size: Provides proper fit for standard conduit applications with secure mounting capability.
  • 8-2/0 AWG Wire Range: Accommodates multiple wire sizes for versatile installation flexibility and compatibility.
  • Malleable Iron Construction: Delivers exceptional durability and corrosion resistance for long-term reliability.
  • Insulated Design: Provides electrical isolation while maintaining proper grounding functionality and safety.
  • Professional Grade: Engineered for commercial and industrial applications requiring dependable grounding performance.
  • Code Compliant: Meets electrical installation standards for proper grounding system integration.

Technical Specifications

  • Department: Electrical
  • Material: Malleable Iron
  • Number Of Batteries: 0
  • Product Group: Miscellaneous
  • Product Subgroup: Brushes
  • Product Type: Grounding Bushings & Accessories

Professional Applications

  • Commercial Electrical Installations
  • Industrial Facility Grounding Systems
  • Residential Service Panel Applications
  • Professional Electrical Contractor Projects
  • Code-Compliant Grounding Solutions
  • Conduit System Integration
  • Electrical Safety Applications

Why Choose Thomas & Betts Quality?

Thomas & Betts delivers proven reliability through malleable iron construction and professional-grade engineering. This insulated grounding bushing provides the durability and performance electrical professionals trust for critical grounding applications, ensuring long-term system integrity and code compliance.

Manufacturer Resources

Product Specs

Number Of Batteries:
0
Product Group:
Grounding & Bonding
Department:
Electrical
Product Subgroup:
Grounding & Bonding
Product Material:
Malleable Iron
Product Type:
Grounding Bushing

Thomas & Betts 3861 – Frequently Asked Questions

1) What conduit sizes does the Thomas & Betts insulated grounding bushing come in?
Three trade sizes are offered: 1/2 inch (part 3861), 1-1/2 inch (part 3884), and 4 inch (part 3864). Pick the one matching the trade size of the rigid or IMC conduit threads it is landing on, since the bushing threads onto the conduit end inside the enclosure.
2) What size ground wire can I land in this grounding bushing?
The lay-in lug accepts 8 AWG through 2/0 AWG copper. That covers the bonding jumper sizes typical of most feeder and branch circuit conduit runs. If your equipment grounding conductor is larger than 2/0, this bushing's lug will not take it.
3) Do I need an insulated grounding bushing or will a plain insulated bushing do?
If you only need to protect conductor insulation at the conduit end, a plain insulated bushing is enough. Use this style when you also have to bond the raceway, such as on service raceways, at concentric or eccentric knockouts, or where a bonding jumper has to run from the conduit to the enclosure ground bar. It does both jobs in one fitting: insulated throat plus a lug that takes 8 to 2/0 AWG.
4) Is this grounding bushing metal or plastic?
The body is malleable iron, with an insulated throat. The iron carries the bond path from the conduit to the lug, and the insulating liner protects conductor insulation where wires pull over the bushing edge. It is not an all-plastic bushing.
5) Will the 4 inch grounding bushing take the same wire range as the 1/2 inch?
Yes. All three sizes, 1/2 inch, 1-1/2 inch, and 4 inch, use the same 8 AWG to 2/0 AWG lug range. The difference between them is the conduit thread size, not the conductor capacity, so a 4 inch raceway bonded with this fitting is still limited to 2/0 at the lug.
6) Is a bonding jumper included with this bushing?
No. The bushing gives you the lug; the bonding jumper itself is a separate conductor you supply, sized per your grounding requirements and landed in the 8 to 2/0 AWG lug. Plan on a length of copper plus a termination at the enclosure ground bar to finish the connection.
7) Can I order just the 1-1/2 inch grounding bushing by part number?
Yes. The 1-1/2 inch Thomas & Betts insulated grounding bushing is part number 3884. The 1/2 inch is 3861 and the 4 inch is 3864, so ordering by that number gets you the exact trade size without relying on a size description.
8) Will malleable iron grounding bushings hold up in a damp industrial plant?
Malleable iron is the standard body material for this class of fitting and is used in commercial and industrial grounding work. For continuously wet or corrosive process areas, spec a fitting in a material rated for that environment instead.
How fast can I get the Thomas & Betts 3861 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Thomas & Betts 3861 come with a warranty?
Absolutely. The Thomas & Betts 3861 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Thomas & Betts 3861?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
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