Crouse-Hinds PLG Square Head C...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$22.86
Eaton Crouse-Hinds Square Head PLG Conduit Plug - Steel Rigid/IMC

Crouse-Hinds PLG Square Head Conduit Plug, Steel or Copper-Free Aluminum, Rigid/IMC - Class I Division 1 Hazardous Location

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Model: PLG65

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

$22.86
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Crouse-Hinds Square Head Conduit Plug for Rigid/IMC

Professional hazardous location conduit sealing solution

The Crouse-Hinds Square Head Steel Conduit Plug delivers reliable conduit sealing for Rigid/IMC applications in hazardous and classified locations. Engineered with steel construction and square head design, this conduit plug provides secure installation and dependable performance in Class I, Division 1 environments where safety and code compliance are critical.

Professional Features & Benefits

  • Class I, Division 1 Rating: Certified for use in hazardous locations where ignitable concentrations of flammable gases or vapors may be present under normal operating conditions.
  • Steel or Copper-Free Aluminum: Steel, or copper-free aluminum on SA catalog numbers. Durable material provides long-lasting performance and resistance to environmental conditions in industrial applications.
  • Square Head Design: Square head configuration enables secure installation and removal with standard tools for efficient maintenance and service.
  • Rigid/IMC Compatibility: Specifically designed for use with rigid steel conduit and intermediate metal conduit systems for versatile installation options.
  • NEC/CEC Compliance: Meets National Electrical Code and Canadian Electrical Code standards for proper electrical installation practices.
  • Hazardous Location Approved: Engineered specifically for hazardous and classified location applications where standard components may not be suitable.

Technical Specifications

  • Area Classification: Hazardous/Classified Locations
  • Conduit Type: Rigid/IMC
  • Nec Hazardous Rating: Class I, Division 1
  • Product Details: Square head
  • Standards Type: NEC/CEC

Professional Applications

  • Petrochemical Processing Facilities
  • Oil and Gas Operations
  • Chemical Manufacturing Plants
  • Refineries and Tank Farms
  • Paint Spray Booths
  • Solvent Handling Areas
  • Hazardous Material Storage

Why Choose Crouse-Hinds Quality?

Crouse-Hinds delivers proven reliability in hazardous location electrical components with NEC/CEC compliant design and steel construction built for demanding industrial environments. Trust Crouse-Hinds for dependable conduit sealing solutions that meet the highest safety standards in classified locations.

Manufacturer Resources

Product Specs

Area Classification:
Hazardous/Classified Locations
Conduit Type:
Rigid/IMC
Product Details:
Square head
Standards Type:
NEC/CEC
Department:
Electrical
Product Type:
Conduit Plug
Product Subgroup:
Conduit Fittings
Product Group:
Conduit & Raceway
Hazardous Location Equipment:
Conduit Fittings, Unions & Plugs
Nec Hazardous Rating:
Class I, Division 1
Nec Hazardous Rating:
Class I, Division 2
Nec Hazardous Rating:
Class II, Division 1
Nec Hazardous Rating:
Class II, Division 2
Nec Hazardous Rating:
Class III
Nec Hazardous Group:
Group C
Nec Hazardous Group:
Group D
Nec Hazardous Group:
Group E
Nec Hazardous Group:
Group F
Nec Hazardous Group:
Group G

Crouse-Hinds PLG65 – Frequently Asked Questions

1) What trade sizes does the Crouse-Hinds PLG square head conduit plug come in?
The PLG square head plug runs from 1/2 inch through 4 inch trade size: 1/2 (PLG15), 3/4 (PLG25), 1 (PLG35), 1-1/4 (PLG45), 1-1/2 (PLG55), 2 (PLG65), 2-1/2 (PLG75), 3 (PLG85), 3-1/2 (PLG95) and 4 inch (PLG105). Order by the trade size of the hub or fitting opening you are closing off, not by the conduit you were running.
2) What does the SA suffix mean on a Crouse-Hinds PLG plug?
SA is the copper-free aluminum version instead of steel. Same square head plug, same trade size, different body material. Copper-free aluminum is what you specify where the atmosphere attacks steel or where a facility spec calls out non-ferrous, non-copper-bearing hardware. SA is offered in 3/4 (PLG25 SA), 2 (PLG65 SA), 3 (PLG85 SA), 3-1/2 (PLG95 SA) and 4 inch (PLG105 SA). The remaining sizes are steel only.
3) Can I use this plug to close an unused hub in a Class I Division 1 area?
Yes, that is exactly what it is for. The PLG plug carries a Class I, Division 1 hazardous rating, so it can close an unused conduit opening in an area where ignitable gas or vapor concentrations can be present under normal operation. A standard hardware-store pipe plug is not an equivalent substitute in a classified area.
4) Will a Crouse-Hinds PLG plug thread into IMC as well as rigid steel conduit?
Yes. The PLG is built for Rigid/IMC systems, so it threads into either rigid steel conduit or intermediate metal conduit, along with the tapered NPT hubs on hazardous-location fittings and enclosures. It is not intended for EMT, which is not threaded.
5) Does the PLG conduit plug meet NEC and Canadian code requirements?
The PLG plug is built to NEC/CEC standards, which is what lets it be used on both US and Canadian installations without swapping product lines. For classified areas the governing point is the Class I, Division 1 rating, and the plug carries it.
6) Is a conduit plug the same thing as a sealing fitting for hazardous locations?
No, and they are not interchangeable. The PLG plug closes an unused threaded opening. A seal fitting is what you pour compound into to block the passage of gas and flame along a conduit run carrying conductors, and the code requires those at boundaries and at enclosures regardless of how many spare hubs you plug. If your open hub has wire going through it, you need a seal, not a plug.
7) Which PLG plug do I order for a paint spray booth or solvent handling area?
Any PLG in the trade size matching the opening will do for those areas, since the whole PLG line is rated Class I, Division 1 and the line is called out for spray booths, solvent handling, refineries, tank farms and chemical plants. Where the solvent or atmosphere is hard on steel, go to the copper-free aluminum SA version, available in 3/4, 2, 3, 3-1/2 and 4 inch.
8) Why a square head plug instead of a recessed or hex plug?
The square head takes a standard wrench from the outside, so a maintenance tech can back it out and re-seal an opening without special drivers or getting inside a fitting. That matters on refinery and process piping where plugs get pulled repeatedly for pressure testing or future circuit additions. A recessed-socket plug sits flush and is the better pick where the head would catch on passing traffic.
How fast can I get the Crouse-Hinds PLG65 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 Crouse-Hinds PLG65 come with a warranty?
Absolutely. The Crouse-Hinds PLG65 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 Crouse-Hinds PLG65?
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 Crouse-Hinds PLG65 from ZenSupply?
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