SEPCO S1020RT Zinc-Plated Stee...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$7.89
SEPCO S1020RT Zinc-Plated Steel Raintight Conduit Coupling

SEPCO S1020RT Zinc-Plated Steel Raintight Conduit Coupling

(No reviews yet) Write a Review

Model: S1020RT

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

$7.89
Adding to cart… The item has been added
Free Shipping on orders over $199
We price match and offer bulk discounts! Click Add to Quote. It's quick and easy.
✨
Earn points with this purchase! You can redeem points for giftcards, iPads, XBox's and more. View Rewards
Free Keying on all locks
You may also like

SEPCO S1020RT Zinc-Plated Steel Raintight Conduit Coupling

The SEPCO S1020RT Raintight Conduit Coupling joins two sections of conduit into a single, secure raceway for outdoor and wet-location electrical work. Machined from zinc-plated steel for strong corrosion and rust resistance, this coupling is available in 1-1/2" and 3-1/2" trade sizes to fit a range of conduit runs. Its raintight design helps keep moisture out of the conduit system at the connection point, making the S1020RT a dependable, code-compliant choice for extending or repairing conduit runs on commercial, industrial, and residential projects exposed to the elements.

Key Features

  • Trade Size Range: Available in 1-1/2" and 3-1/2" sizes to match a variety of conduit runs.
  • Durable Construction: Zinc-plated steel body provides strong corrosion and rust resistance for long-term reliability in outdoor and industrial environments.
  • Raintight Design: Weathertight coupling seal is built to help keep moisture out of the conduit run at the joint, supporting outdoor and wet-location conduit installations.
  • Coupling Configuration: Connects two lengths of conduit into one continuous raceway, creating a secure mechanical and electrical connection between conduit sections.
  • Zinc-Plated Finish: The zinc-plated surface adds an extra layer of protection against corrosion, helping the coupling hold up to repeated outdoor exposure.
  • Model S1020RT: Part of the SEPCO raintight coupling lineup, making it easy to identify and specify for conduit projects that call for a raintight fitting.

Certifications & Compliance

  • Raintight Design – Suitable for Outdoor and Wet-Location Conduit Installations

Technical Specifications

  • Trade Size: 1-1/2" - 3-1/2"

Typical Applications

  • Commercial and Industrial Electrical Installations
  • Conduit and Raceway Systems
  • Outdoor and Wet-Location Conduit Runs
  • Conduit Repair and Extension Projects
  • New Construction and Renovation Wiring

Why SEPCO?

SEPCO builds conduit fittings like the S1020RT coupling from zinc-plated steel to deliver dependable corrosion resistance and raintight performance where it matters most, across 1-1/2" and 3-1/2" trade sizes. For electrical professionals who need conduit hardware that can stand up to outdoor and wet-location conditions without sacrificing a secure, code-compliant connection, the SEPCO S1020RT coupling is a straightforward, reliable choice backed by solid zinc-plated steel construction. Stocking the S1020RT alongside the rest of the SEPCO raintight fitting lineup helps keep outdoor and wet-location conduit installations consistent from job to job.

Manufacturer Resources

SEPCO Product Catalog

Product Specs

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

SEPCO S1020RT – Frequently Asked Questions

1) Can I use the SEPCO S1020RT coupling outdoors or in a wet location?
Yes. The S1020RT is a raintight coupling built to keep moisture out of the raceway at the joint, which is what outdoor and wet-location conduit runs call for. The body is zinc-plated steel for corrosion and rust resistance under repeated weather exposure.
2) What coupling should I use instead of the SEPCO S1020RT in a corrosive chemical or coastal environment?
The SEPCO S1020RT is a zinc-plated steel raintight coupling intended for outdoor and wet-location conduit runs. Where the atmosphere is chemically aggressive rather than just wet, the Ocal CPL Series rigid steel conduit coupling adds a PVC-coated gray exterior over the steel body, which puts a plastic jacket between the fitting and the environment instead of relying on plating alone. Both join two rigid conduit sections into one continuous raceway, so the choice comes down to whether zinc plating or a PVC coating matches the exposure on your site.
3) Is the nVent CADDY ERC twist coupling a substitute for a SEPCO S1020RT raintight coupling?
They are not interchangeable. The nVent CADDY 2G9S10WB is an ERC series twist coupling for metallic conduit, supplied in packs of 100 for high-volume repetitive work. The SEPCO S1020RT is a zinc-plated steel raintight coupling built to keep moisture out of the conduit joint in outdoor and wet-location runs, in 1-1/2 inch and 3-1/2 inch trade sizes. If the joint needs to be raintight, specify the S1020RT; the ERC twist coupling is a different connection method and is not described as a raintight fitting.
4) Does a raintight coupling give me electrical continuity, or do I still need a bonding jumper?
The S1020RT makes both a mechanical and an electrical connection between the two conduit sections, joining them into one continuous raceway. Whether your installation also requires a bonding jumper depends on the system and the inspector's call on that specific run, not on the coupling itself.
5) Will a zinc-plated steel coupling hold up in a corrosive or chemical environment?
Zinc plating on steel handles general outdoor weather exposure and rust well, which is what the S1020RT is built for. For chemically aggressive or severely corrosive areas, a PVC-coated fitting is the usual answer instead; the Ocal CPL Series rigid steel coupling is PVC-coated gray for that duty.
6) I need to join two conduit lengths that cannot be turned. Is this the right fitting?
A threaded coupling like the S1020RT needs at least one conduit end to rotate into it, so it suits extending a run, repairing a cut section, or new work where you can turn the pipe. Where neither end can be turned, use a compression or twist-on type coupling instead, such as the nVent CADDY ERC twist coupling for metallic conduit.
7) Will the SEPCO S1020RT work on a repair where I am splicing into an existing conduit run?
Yes, that is one of its intended uses. The coupling is made for extending or repairing conduit runs as well as new construction and renovation wiring, and the raintight joint means you can do that repair on an exposed outdoor run without opening a water path into the raceway.
8) Will an Ocal CPL coupling thread onto the same conduit as a SEPCO S1020RT?
Both are couplings for rigid steel conduit runs, so they serve the same role of joining two conduit sections into one raceway. The practical difference is the exterior: the Ocal CPL Series is PVC-coated gray rigid steel, while the SEPCO S1020RT is zinc-plated steel in a raintight configuration offered in 1-1/2 inch and 3-1/2 inch trade sizes. Match the trade size of your conduit and, if you are extending an existing PVC-coated system, stay with the coated fitting so the corrosion protection is continuous.
9) Can I buy a single SEPCO raintight coupling, or do these only come in bulk packs?
The SEPCO S1020RT is ordered by trade size, 1-1/2 inch or 3-1/2 inch, as an individual coupling rather than a fixed bulk carton. By contrast, some twist couplings ship only in quantity, like the nVent CADDY ERC 2G9S10WB which is a pack of 100.
How fast can I get the SEPCO S1020RT 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 S1020RT come with a warranty?
Absolutely. The SEPCO S1020RT 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 S1020RT?
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 S1020RT from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.
!