SEPCO P1 Die Cast Zinc Slotted...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1.05
SEPCO P1 Die Cast Zinc Slotted Plug with NPT Threads

SEPCO P1 Die Cast Zinc Slotted Plug with NPT Threads

(No reviews yet) Write a Review

Model: P1

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

$1.05
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 P1 Die Cast Zinc Slotted Plug with NPT Threads

The SEPCO P1 Die Cast Zinc Slotted Plug is a rugged threaded closure fitting engineered to seal unused openings in conduit bodies, enclosures, junction boxes, and other raceway hardware. Manufactured from die-cast zinc for corrosion resistance, dimensional stability, and long-term durability, this slotted plug features 1/2-Inch NPT threads for a secure, tapered-thread fit into standard tapped openings. Its slotted head accepts a standard screwdriver for quick installation and removal, making it a practical, low-cost solution for electricians closing out spare knockouts, hubs, or conduit body access openings on commercial and industrial raceway and enclosure systems. The compact, low-profile design keeps the finished installation neat while maintaining a tight, debris-resistant seal at the threaded opening.

Key Features

  • Trade Size: 1/2-Inch NPT threading fits standard tapped conduit body, box, and enclosure openings.
  • Durable Construction: Die-cast zinc body resists corrosion, impact, and wear for long service life in electrical installations.
  • Threaded Connection: NPT tapered threads draw up tight for a secure, snug fit that helps keep out dust, moisture, and debris.
  • Slotted Head Design: Accepts a standard slotted screwdriver for fast, tool-ready installation and removal without special hardware.
  • Compact Closure Fitting: Low-profile plug design seals spare openings without adding bulk to the enclosure or conduit body.
  • Reusable Fitting: The slotted plug can be removed and reinstalled if a sealed opening is later put back into service, adding flexibility for future wiring changes.

Technical Specifications

  • Refer to manufacturer documentation for complete technical specifications.

Typical Applications

  • Conduit Body and Fitting Openings
  • Electrical Enclosure and Panel Knockouts
  • Commercial and Industrial Raceway Systems
  • Spare Hub and Access Port Sealing
  • New Construction and Retrofit Electrical Work

Why SEPCO?

SEPCO builds this slotted plug from die-cast zinc to deliver a dependable, corrosion-resistant closure for electrical raceway and enclosure systems. Its 1/2-Inch NPT threaded fit and slotted-head design make it a straightforward, reliable choice for electricians who need a secure seal on unused conduit, box, or fitting openings without sourcing a heavier or more expensive fitting. Keeping a stock of these plugs on hand simplifies job-site work whenever a spare opening needs to be closed out cleanly and reliably. Choose SEPCO for consistent, code-ready electrical hardware built for professional installations.

Manufacturer Resources

SEPCO Product Catalog

Product Specs

list_batch:
SEP-20260911
Product Type:
Conduit Plug
Connection Type:
Threaded
Configuration:
Slotted
Department:
Electrical
Product Group:
Conduit & Raceway
Product Subgroup:
Conduit Fittings
Product Material:
Zinc Die-Cast
Product Size:
1/2"

SEPCO P1 – Frequently Asked Questions

1) Will the SEPCO P1 plug thread into a 1/2 inch tapped hub on a conduit body or enclosure?
Yes. The P1 is a 1/2 inch NPT plug, so it threads into any standard 1/2 inch tapped opening, whether that is a hub on a conduit body, a tapped boss on an enclosure, or a fitting access port. The threads are tapered NPT, so they draw up tight as you turn them in rather than bottoming out on a shoulder.
2) Can I use the SEPCO P1 plug in an untapped knockout in a panel?
No. The P1 needs threads to bite into. A plain punched knockout in sheet metal has no thread, so a tapered NPT plug has nothing to engage. For an open knockout in a panel or box you want a snap-in or screw-together knockout seal sized to the hole. Use the P1 where the opening is already tapped, such as a threaded conduit body opening or a tapped hub.
3) What material is the SEPCO P1 conduit plug made of, and will it hold up outdoors or in a damp industrial area?
Die-cast zinc. Zinc resists corrosion and takes impact without deforming, which is why it is a common body material for closure fittings in commercial and industrial raceway work. On NPT threads the taper itself is what keeps dust, moisture and debris out of the opening, so the joint stays tight as long as it is drawn up properly.
4) What tool do I need to install the SEPCO P1 plug?
A standard flat-blade screwdriver. The P1 has a slotted head, so there is no square drive, hex socket or wrench flat to deal with. That also means it comes back out easily if the opening is put back into service later for a wiring change.
5) Should I use a slotted plug like the SEPCO P1 or a recessed-head plug?
The P1 is the low-profile slotted type: the head sits flush and close to the surface, which keeps it from catching on anything and keeps the finished enclosure looking clean. A recessed or square-drive plug is what you reach for when you want more torque or a tamper-less obvious head. For routine closing of spare 1/2 inch openings on conduit bodies and enclosures, the slotted plug is the straightforward pick and needs no special driver.
6) How do I order the right SEPCO plug, and what is the part number?
Order it as SEPCO P1. That single model covers the 1/2 inch NPT die-cast zinc slotted plug, so there is no finish or head-style option to specify. Larger openings take a different SEPCO plug number, not a variation of the P1.
7) Is the SEPCO P1 slotted plug reusable if I need to open that hub back up?
Yes. It backs out with a screwdriver and goes back in, so a hub you close out today can be returned to service when wiring changes. That is worth knowing for property managers and facility crews who close spare openings on panels now and add circuits later.
How fast can I get the SEPCO P1 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 P1 come with a warranty?
Absolutely. The SEPCO P1 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 P1?
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 P1 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.
!