SEPCO S40664 Zinc-Plated Steel...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$2.84
SEPCO S40664 Zinc-Plated Steel Insulated Conduit Connector, 1-1/4" to 2-1/2" Trade Sizes

SEPCO S40664 Zinc-Plated Steel Insulated Conduit Connector, 1-1/4" to 2-1/2" Trade Sizes

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Model: S4063

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

$2.84
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SEPCO S40664 Zinc-Plated Steel Insulated Conduit Connector, 1-1/4" to 2-1/2" Trade Sizes

The SEPCO S40664 Insulated Conduit Connector is built from zinc-plated steel for dependable performance in electrical conduit and raceway systems, and it is available in trade sizes from 1-1/4" to 2-1/2" to match a range of conduit runs. Designed as an insulated connector, it helps protect conductors at connection points while providing the strength and corrosion resistance of a durable zinc-plated steel housing. This connector is suited for professional electrical installations where a solid, code-conscious connection point is required between conduit sections or enclosures, and SEPCO offers it across the full 1-1/4" to 2-1/2" trade size range to fit varied job requirements.

Key Features

  • Trade Size Range: Available in sizes from 1-1/4" to 2-1/2" to fit a variety of conduit and raceway configurations.
  • Durable Construction: Zinc-plated steel body offers corrosion resistance and long-term mechanical strength for demanding job-site conditions.
  • Insulated Design: Integral insulation helps guard conductors at the connection point, reducing the risk of abrasion, grounding faults, or short circuits as wires pass through.
  • Connector Function: Engineered to join conduit, raceway, or enclosure sections, helping maintain a continuous, secure electrical pathway.
  • Zinc-Plated Finish: The plated steel finish is intended to resist rust and corrosion over the life of the installation.
  • Professional-Grade Build: Manufactured for use by licensed electricians and contractors on commercial, industrial, and residential projects.
  • Compatible Hardware: Sized and configured to work alongside standard conduit, boxes, and enclosures commonly found on electrical job sites.

Technical Specifications

  • Trade Size: 1-1/4" - 2-1/2"

Typical Applications

  • Commercial and Industrial Electrical Installations
  • Conduit and Raceway Systems
  • Panelboard and Enclosure Wiring Connections
  • Renovation and New Construction Electrical Work
  • Residential Electrical Contracting

Why SEPCO?

SEPCO builds its insulated connectors from zinc-plated steel to give electrical contractors a connector that combines mechanical durability with reliable insulation at the connection point, available across the full 1-1/4" to 2-1/2" trade size range. For professionals who need dependable conduit and raceway hardware they can install with confidence, SEPCO electrical products are engineered to hold up to the rigors of daily job-site use and the practical realities of running conduit in the field. ZenSupply stocks the SEPCO S40664 connector family for contractors, facility managers, and electrical wholesalers who want a straightforward, durable connector backed by a manufacturer that understands the day-to-day demands of the trade.

Manufacturer Resources

SEPCO Product Catalog

Product Specs

list_batch:
SEP-20260911
Product Type:
Conduit Connector
Product Finish:
Zinc-Plated
Department:
Electrical
Product Group:
Conduit & Raceway
Product Subgroup:
Conduit Fittings
Product Material:
Zinc-Plated Steel

SEPCO S4063 – Frequently Asked Questions

1) What trade sizes does the SEPCO S40664 insulated conduit connector come in?
Two orderable trade sizes: 1-1/4 inch (MPN S4063) and 2-1/2 inch (MPN S4065D). Match the size to the conduit run you are terminating, not to the knockout, since the connector threads into the enclosure opening sized for that trade size.
2) Why use an insulated conduit connector instead of a standard uninsulated one?
The insulated version has an integral insulating throat, so conductors pulled through the connector bear against insulation rather than bare metal. That reduces abrasion on conductor insulation and the grounding faults or shorts that follow. On larger raceway terminations, where conductors are heavy and the pull is harder on the wire jacket, that throat is the reason electricians specify insulated over plain.
3) Is a zinc-plated steel conduit connector suitable for damp or industrial areas?
The body is zinc-plated steel, which gives mechanical strength plus a plated finish meant to resist rust and corrosion over the life of the install. That suits it to commercial and industrial conduit and raceway work. For continuously wet, chemical, or corrosive exposure, electricians typically step up to a non-ferrous or coated fitting instead of plated steel.
4) Will this connector fit a standard panelboard knockout?
Yes, within its size. The S40664 connector is sized and configured to work with standard conduit, boxes, and enclosures, so a 1-1/4 inch connector lands in a 1-1/4 inch knockout and the 2-1/2 inch in a 2-1/2 inch opening. Common uses are panelboard and enclosure wiring connections and joining conduit sections on new construction or renovation work.
5) I need a 3/4 inch or 1 inch insulated connector. Does the S40664 cover that?
No. The S40664 family runs 1-1/4 inch to 2-1/2 inch only, and the two stocked sizes are 1-1/4 inch and 2-1/2 inch. For smaller branch-circuit raceway you need a different insulated connector sized for that trade size.
6) Can I use the SEPCO insulated connector on residential service work, or is it commercial only?
Both. SEPCO lists it for commercial, industrial, and residential electrical contracting, including renovation and new construction. Property managers and MRO buyers standardizing a building on one fitting line can use the same connector across panel feeds and branch raceway runs within the 1-1/4 to 2-1/2 inch range.
How fast can I get the SEPCO S4063 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 S4063 come with a warranty?
Absolutely. The SEPCO S4063 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 S4063?
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 S4063 from ZenSupply?
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