SEPCO S1110 Zinc-Plated Steel ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$0.38
SEPCO S1110 Zinc-Plated Steel EMT Set-Screw Conduit Connector, 1/2" - 4"

SEPCO S1110 Zinc-Plated Steel EMT Set-Screw Conduit Connector, 1/2" - 4"

(No reviews yet) Write a Review

Model: S1110

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

$0.38
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 S1110 Zinc-Plated Steel EMT Set-Screw Conduit Connector, 1/2" to 4"

The SEPCO S1110 is a zinc-plated steel EMT set-screw connector engineered to terminate Electrical Metallic Tubing (EMT) conduit runs at boxes, panels, and enclosures across commercial and industrial wiring systems. This connector is available in trade sizes ranging from 1/2" to 4", covering the full range of EMT conduit sizes electricians encounter on the job site. The steel body delivers the mechanical strength expected of a quality conduit fitting, while the zinc-plated finish helps resist corrosion from routine job-site handling, storage, and everyday installation conditions. A set-screw connection method lets installers create a secure, tool-tightened mechanical joint between EMT conduit and the enclosure without soldering, giving electrical contractors a dependable, easy-to-install option across every trade size in the S1110 line.

Key Features

  • Trade Size Range: Available in trade sizes from 1/2" to 4" to match a wide range of EMT conduit runs.
  • Durable Construction: Zinc-plated steel body combines the mechanical strength of steel with added corrosion resistance for long-term reliability in EMT conduit installations.
  • Set-Screw Connection: Set-screw design allows a secure, tool-tightened mechanical connection between EMT conduit and the connected box, panel, or enclosure, without soldering.
  • EMT Compatibility: Purpose-built connector for Electrical Metallic Tubing (EMT), designed to terminate tubing cleanly and squarely at the connection point.
  • Straight Connector Configuration: Joins EMT conduit runs to boxes, panels, and enclosures in a raceway system.
  • Zinc-Plated Finish: Plated finish helps protect the steel body from corrosion during storage, handling, and installation, extending service life.
  • Job-Site Ready: Steel-and-zinc construction is sized to hold up to the wear and tear of everyday electrical rough-in and finish work across every trade size in the range.

Technical Specifications

  • Connection Type: Set Screw
  • Trade Size: 1/2" - 4"

Typical Applications

  • Commercial and Industrial Electrical Installations
  • EMT Conduit and Raceway Systems
  • Panelboard, Junction Box, and Enclosure Wiring
  • Lighting and Power Circuit Terminations
  • New Construction and Renovation Electrical Projects

Why SEPCO?

SEPCO builds the S1110 connector from zinc-plated steel, available across trade sizes from 1/2" to 4", to give electrical contractors a durable, corrosion-resistant fitting for EMT conduit terminations. The set-screw connection method offers a straightforward, reliable way to secure conduit to boxes, panels, and enclosures on commercial and industrial jobs where dependable, properly installed connections matter. For electricians who need a steel EMT connector that holds up on the job site across a full range of conduit sizes, the SEPCO S1110 line is built to get the connection done right.

Manufacturer Resources

SEPCO Product Catalog

Product Specs

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

SEPCO S1110 – Frequently Asked Questions

1) Will a SEPCO S1110 set-screw connector work on rigid or IMC conduit, or only EMT?
EMT only. The S1110 is built specifically for Electrical Metallic Tubing, where the tubing slides into the connector and a set screw clamps it. Rigid and IMC are threaded conduit and need a threaded fitting or a threaded-to-EMT coupling instead, so don't substitute this connector on a rigid run.
2) What trade sizes does the SEPCO S1110 EMT connector come in, and which part number is which?
Ten trade sizes cover the whole EMT range: 1/2 inch (S1110), 3/4 inch (S1111), 1 inch (S1112), 1-1/4 inch (S1112A), 1-1/2 inch (S1112B), 2 inch (S1112C), 2-1/2 inch (S1112D), 3 inch (S1112E), 3-1/2 inch (S1112E1) and 4 inch (S1112F). The size called out is the EMT trade size, so order to match the tubing, not the knockout.
3) Will a zinc-plated steel EMT connector hold up outdoors or in a damp mechanical room?
The zinc plating on the steel body resists corrosion from handling, storage and normal installation conditions, which is what it is built for. It is not a raintight fitting though, because a set-screw body is not sealed against water entry. For wet or outdoor locations use a raintight compression connector; keep the S1110 on interior dry-location work.
4) Set-screw or compression EMT connectors, which should I use for my job?
Set screw, like the SEPCO S1110, is the standard indoor dry-location choice: fastest to install, just slide the EMT in and tighten the screw with a flat driver or nut driver. Compression connectors are what you reach for in damp, wet or outdoor locations and where a concrete pour or wash-down is involved. If the run is inside a building in a dry location, the set-screw version does the job with less labor.
5) Is the SEPCO S1110 a straight connector or an offset/90 degree fitting?
Straight. The S1110 configuration terminates an EMT run square into a box, panel or enclosure knockout. If you need to bring conduit up a wall and into the bottom of a panel without a bend, that calls for an offset connector, not this one.
6) I'm standardizing fittings across a building with EMT runs from 1/2 inch branch circuits up to 4 inch feeders. Can one connector line cover all of it?
Yes, the S1110 family spans 1/2 inch through 4 inch in ten trade sizes, all zinc-plated steel with the same set-screw method, so an MRO or facilities crew can stock one line instead of mixing brands and connection types. Finish and material are consistent across every size, which keeps the look and the install procedure the same from branch circuit to feeder.
7) Does the SEPCO S1110 EMT connector come with a locknut, and do I need anything else to install it?
The S1110 is a two-piece style fitting, connector body plus locknut, which threads through the enclosure knockout and tightens from inside. Beyond that you need no solder and no special tool kit: a flat-blade or nut driver sets the screw on the EMT, and the tubing should be cut and reamed square so it seats fully in the connector throat.
8) Are SEPCO S1110 connectors steel or die-cast zinc?
Steel body with a zinc-plated finish, not die cast. That matters on larger feeder sizes and in rough rough-in conditions, where a cast body is easier to crack if the conduit gets levered. The plating is for corrosion protection during storage, handling and install.
How fast can I get the SEPCO S1110 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 S1110 come with a warranty?
Absolutely. The SEPCO S1110 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 S1110?
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 S1110 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.
!