SEPCO 27BI4OL Insulated Ground...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$27.49
SEPCO 27BI4OL Insulated Grounding Bushing with Aluminum Lug, Zinc-Plated Malleable Iron, 3-Inch

SEPCO 27BI4OL Insulated Grounding Bushing with Aluminum Lug, Zinc-Plated Malleable Iron, 3-Inch

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Model: 27BI4OL

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

$27.49
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SEPCO Insulated Grounding Bushing with Aluminum Lug, Zinc-Plated Malleable Iron, 3-Inch

SEPCO’s Insulated Grounding Bushing is designed for reliable conduit termination and grounding continuity in electrical raceway systems. Constructed from zinc-plated malleable iron for corrosion resistance and mechanical strength, this 3-Inch bushing features an open-side aluminum lug that simplifies bonding jumper connections without requiring the bushing to be removed from the conduit. The molded insulated throat protects conductor insulation from abrasion as wires pass through the fitting, helping installers maintain a clean, code-conscious termination point at panelboards, enclosures, and equipment housings. This bushing is a practical, dependable choice for electricians and contractors who need a durable grounding fitting for commercial, industrial, and light-duty raceway work.

Key Features

  • Trade Size: Sized for 3-Inch conduit, ensuring a proper, secure fit within standard rigid or IMC raceway systems.
  • Durable Construction: Zinc-plated malleable iron body resists corrosion and rust while providing the mechanical strength needed for demanding installation environments, indoors or out.
  • Insulated Grounding Design: The insulated throat shields conductor insulation from abrasion and cutting at the point where wires exit the conduit, reducing the risk of nicked or damaged conductors over time.
  • Open Side Aluminum Lug: Features an open-side aluminum grounding lug that allows a bonding jumper conductor to be attached, adjusted, or removed without disturbing the conduit connection itself, saving installation time.
  • Finish: Zinc-plated finish adds an extra layer of corrosion protection, supporting long-term reliability in typical raceway environments.
  • Grounding Continuity: Provides a mechanical and electrical bonding path between conduit and enclosure, supporting proper equipment grounding practices.

Technical Specifications

  • Refer to manufacturer documentation for complete technical specifications.

Typical Applications

  • Conduit and Raceway Grounding
  • Panelboard and Load Center Wiring
  • Commercial and Industrial Electrical Installations
  • Equipment Bonding and Grounding Systems
  • Service Entrance and Enclosure Terminations
  • Renovation and New Construction Projects

Why SEPCO?

SEPCO builds grounding and bonding fittings from durable, corrosion-resistant materials to support code-conscious electrical work. The zinc-plated malleable iron construction of this insulated grounding bushing stands up to the mechanical demands of raceway installation, while the open-side aluminum lug design reflects a focus on practical, field-friendly hardware that saves installers time on the job. For electrical professionals who need a dependable bushing that combines corrosion resistance, insulated conductor protection, and a flexible grounding lug in one fitting, SEPCO offers a solid, no-nonsense solution built for everyday raceway work.

Manufacturer Resources

SEPCO Product Catalog

Product Specs

list_batch:
SEP-20260911
Product Type:
Grounding Bushing
Product Finish:
Zinc-Plated
Department:
Electrical
Product Group:
Grounding & Bonding
Product Subgroup:
Grounding & Bonding
Product Material:
Malleable Iron
Product Size:
3-Inch

SEPCO 27BI4OL – Frequently Asked Questions

1) Can I attach a bonding jumper without pulling the bushing off the conduit?
That is the point of the open-side lug. The aluminum grounding lug on the 27BI4OL is open-sided, so a bonding jumper can be landed, adjusted, or removed without breaking the conduit connection. Useful when you are bonding several raceways into one enclosure and reworking jumper routing after the fact.
2) Does this bushing protect the conductors where they leave the conduit?
Yes. The molded insulated throat shields conductor insulation from abrasion and cutting at the point wires exit the fitting, which is what keeps a pulled conductor from getting nicked on a metal edge over time. It is an insulated grounding bushing, so you get the conductor protection and the bonding point in one fitting rather than adding a separate insulating bushing.
3) Is a zinc-plated malleable iron bushing suitable for damp or outdoor raceway runs?
The body is malleable iron with a zinc-plated finish for corrosion resistance, and the description calls out use indoors or out in demanding installation environments. Malleable iron also gives you the mechanical strength to take wrench torque on a 3-inch fitting without cracking, which is where plastic or die-cast bodies get you into trouble.
4) Do I still need a locknut, or does this bushing do the whole termination?
The 27BI4OL is the grounding and insulating bushing that goes on the conduit end at the enclosure. You supply the bonding jumper conductor yourself, sized per your equipment grounding requirements, and land it in the aluminum lug. The bushing itself provides the mechanical and electrical bonding path between conduit and enclosure.
5) What is the exact part number to order for the 3-inch SEPCO insulated grounding bushing with lug?
Order SEPCO 27BI4OL. That is the manufacturer part number for the 3-inch insulated grounding bushing with the open-side aluminum lug, zinc-plated malleable iron body. One model, no finish or handing options to specify.
6) Where would an electrician typically use this grounding bushing on a job?
Standard spots are panelboard and load center feeds, service entrance and enclosure terminations, and equipment bonding on commercial and industrial raceway. It gives you a defined bonding point at the box where a 3-inch conduit lands, on new construction or a renovation where you are re-terminating existing raceway.
How fast can I get the SEPCO 27BI4OL 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 SEPCO 27BI4OL come with a warranty?
Absolutely. The SEPCO 27BI4OL 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 SEPCO 27BI4OL?
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 SEPCO 27BI4OL from ZenSupply?
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