Thomas & Betts Anti-Short Bush...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$50.42
$0.42
Thomas & Betts 391 BUSHING-SIZES 14-4, 12-3, 6-1, 4-1

Thomas & Betts Anti-Short Bushings Non-Metallic Multi-Size Pack (14-4, 12-3, 6-1, 4-1)

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Model: 391
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In Stock (leaves warehouse same day if ordered before 3pm ET)

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Thomas & Betts Anti-Short Bushings Non-Metallic Multi-Size Pack

Professional conduit protection for multiple wire gauge applications

Thomas & Betts anti-short bushings provide essential protection for electrical conductors at conduit terminations. This non-metallic multi-size pack includes bushings for wire sizes 14-4, 12-3, 6-1, and 4-1, delivering reliable insulation and protection against sharp conduit edges that could damage wire insulation.

Professional Features & Benefits

  • Non-Metallic Construction: Provides excellent electrical insulation and corrosion resistance for long-term reliability in diverse environments.
  • Multi-Size Pack: Includes bushings for wire sizes 14-4, 12-3, 6-1, and 4-1, offering versatility for various gauge requirements in a single package.
  • Anti-Short Protection: Prevents wire insulation damage from sharp conduit edges, reducing the risk of electrical shorts and system failures.
  • Professional Grade Quality: Thomas & Betts engineering ensures consistent performance and durability in commercial and residential applications.
  • Easy Installation: Designed for quick and secure placement at conduit terminations without special tools or complex procedures.
  • Code Compliance: Meets electrical installation standards for proper conductor protection at conduit entry points.

Technical Specifications

  • Department: Electrical
  • Material: Non-Metallic
  • Number Of Batteries: 0
  • Product Group: Conduit & Fittings
  • Product Subgroup: Bushings
  • Product Type: Anti-Short Bushings

Professional Applications

  • Residential electrical installations and service upgrades
  • Commercial building electrical systems
  • Industrial facility conduit terminations
  • Electrical panel and junction box connections
  • Service entrance and meter socket applications
  • Maintenance and repair operations
  • New construction electrical rough-in work

Why Choose Thomas & Betts Quality?

Thomas & Betts delivers proven reliability in electrical components with consistent manufacturing standards and professional-grade materials. These anti-short bushings provide dependable conductor protection, ensuring electrical system integrity and code compliance for long-term performance in demanding applications.

Manufacturer Resources

Product Specs

Number Of Batteries:
0
Product Group:
Conduit & Raceway
Product Type:
Anti-Short Bushing
Department:
Electrical
Product Subgroup:
Flexible Conduit & Fittings
Product Material:
Non-Metallic

Thomas & Betts 391 – Frequently Asked Questions

1) What wire sizes do the Thomas & Betts 391 anti-short bushings cover?
The Thomas & Betts 391 pack covers four wire size ranges: 14-4, 12-3, 6-1 and 4-1. That means one pack handles small branch circuit conductors through heavier feeder sizes, so you aren't buying four separate boxes to finish a job that mixes 14 AWG home runs with 4 AWG feeders.
2) What is an anti-short bushing actually for, and do I need one at a flexible conduit termination?
An anti-short bushing (electricians call it a red head) seats inside the cut end of flexible conduit so the conductors ride on plastic instead of the sharp spiral edge the cutter leaves behind. Without it the insulation can chafe through and short to the raceway. The 391 bushings are made for exactly that spot, placed at conduit terminations going into panels, junction boxes, meter sockets and service entrances.
3) Are the 391 bushings plastic or metal?
Non-metallic. That is the point of the part, the insulating body is what separates the copper from the cut metal edge, and it also means nothing in the bushing corrodes in a damp pull box or an exterior panel.
4) Is a multi-size bushing pack a better buy than single-size for a maintenance truck?
For MRO and service work, yes. A single-size box only helps when every termination on the job uses the same conductor size, which is rarely true on repairs and panel changes. The 391 pack carries 14-4, 12-3, 6-1 and 4-1 in one package, so a maintenance tech or property maintenance crew can cover a branch circuit repair and a feeder splice out of the same bin. If you are rough-in on new construction running one conduit size all day, a single-size box is the simpler stock item.
5) What is the Thomas & Betts part number for the multi-size anti-short bushing pack?
Order it as Thomas & Betts 391. That single part number is the multi-size non-metallic pack covering 14-4, 12-3, 6-1 and 4-1 wire sizes, which matters if you are a distributor cross-referencing against a customer's spec and need the exact catalogue designation rather than a size-specific number.
6) Do I need any special tool to install Thomas & Betts anti-short bushings?
No tools. The bushing pushes into the cut end of the conduit and is held captive once the connector is tightened down over it. Thomas & Betts lists the 391 as placed at conduit terminations without special tools or extra procedures, which is why most crews stock a tub of them on the truck.
7) Can I use the 391 anti-short bushings on both residential and commercial electrical work?
Both. Thomas & Betts lists the 391 bushings for residential installations and service upgrades, commercial building systems and industrial facility conduit terminations. The part does the same job in all three, it is the conductor size that decides which bushing out of the pack you reach for.
How fast can I get the Thomas & Betts 391 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 391 come with a warranty?
Absolutely. The Thomas & Betts 391 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 391?
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
Why buy the Thomas & Betts 391 from ZenSupply?
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