Crouse-Hinds Copper-Free Alumi...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$5.13
Crouse-Hinds Copper-Free Aluminum Explosionproof Dust-Ignitionproof Reducing Bushing

Crouse-Hinds Copper-Free Aluminum Explosionproof Dust-Ignitionproof Reducing Bushing

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Model: RE21SA

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

$5.13
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Crouse-Hinds RE42-SA Explosionproof Copper-Free Aluminum Reducing Bushing

The Crouse-Hinds RE42-SA is a Copper-Free Aluminum reducing bushing engineered to transition conduit runs from a 3/4" hub down to a 1-1/4" conduit connection while maintaining explosionproof and dust-ignitionproof integrity. Built for use in hazardous location electrical systems, this bushing allows electricians to adapt between conduit sizes without sacrificing the enclosure's protective rating. Its copper-free aluminum construction makes it suitable for environments where copper content restrictions apply, and the rugged design is intended for long-term service in demanding industrial installations. As a threaded reducing bushing, the RE42-SA provides a secure, code-compliant transition point in classified raceway systems where mismatched conduit or hub sizes must be joined without compromising protection ratings.

Key Features

  • Trade Size: 3/4" x 1-1/4" reducing configuration for adapting between two conduit or hub sizes on a single fitting.
  • Durable Construction: Copper-Free Aluminum body resists corrosion while meeting copper-content restrictions common in hazardous or classified environments.
  • Explosionproof Design: Rated Explosionproof for use in areas where ignitable gases or vapors may be present, helping contain any internal arcing or sparking.
  • Dust-Ignitionproof Protection: Constructed to prevent the entry of combustible dust that could otherwise be ignited by internal electrical components.
  • Reducing Bushing Function: Provides a secure mechanical transition between mismatched conduit or hub sizes, maintaining a continuous, code-compliant raceway system.
  • Threaded Fitting: Designed to thread securely into compatible Crouse-Hinds enclosures and conduit systems for a tight, dependable connection.

Certifications & Compliance

  • Explosionproof Rated
  • Dust-Ignitionproof Rated

Technical Specifications

  • Product Type: Bushing
  • Product Material: Copper-Free Aluminum
  • Trade Size: 3/4" x 1-1/4"
  • Rating: Explosionproof, Dust-Ignitionproof

Typical Applications

  • Hazardous Location Electrical Installations
  • Conduit and Raceway Size Transitions
  • Industrial and Petrochemical Facilities
  • Explosionproof Enclosure Wiring Systems
  • Dust-Ignitionproof Equipment Enclosures

Why Crouse-Hinds?

Crouse-Hinds is a trusted name in hazardous location electrical products, and the RE42-SA reducing bushing reflects that standard with its Copper-Free Aluminum construction and Explosionproof, Dust-Ignitionproof design. Electricians and facility engineers rely on components like this to maintain the protective integrity of classified electrical systems while allowing practical conduit size transitions between a 3/4" hub and a 1-1/4" conduit run. Choosing a Crouse-Hinds fitting helps ensure compatibility, durability, and code-compliant performance in demanding industrial environments where hazardous atmospheres and combustible dust must be contained.

Manufacturer Resources

Product Specs

Product Type:
Bushing
list_batch:
CRS-20260917
Department:
Electrical
Product Subgroup:
Conduit Fittings
Product Group:
Conduit & Raceway

Crouse-Hinds RE21SA – Frequently Asked Questions

1) What sizes does the Crouse-Hinds RE copper-free aluminum reducing bushing come in?
Two reducing combinations are offered: 3/4 inch x 1/2 inch (RE21SA) and 3/4 inch x 1-1/4 inch (RE42-SA). Both are threaded copper-free aluminum bushings for hazardous location raceway transitions.
2) Can I use a reducing bushing in a Class I or dust hazardous area without losing the enclosure rating?
That is the point of the RE series bushing. It is rated explosionproof and dust-ignitionproof, so it threads into a compatible Crouse-Hinds enclosure hub or conduit and keeps the classified system's protection intact while changing trade size. A standard non-classified reducer would break that rating.
3) I have a 1-1/4 inch conduit run and a 3/4 inch enclosure hub. Which part number do I order?
The RE42-SA is the one. It transitions from a 3/4 inch hub down to a 1-1/4 inch conduit connection in a single threaded fitting. If instead your conduit is 1/2 inch, order the RE21SA (3/4 inch x 1/2 inch).
4) Why specify a copper-free aluminum fitting instead of a standard aluminum or steel one?
Copper-free aluminum is what gets specified where copper content is restricted, which is common in petrochemical and other classified areas, and it resists corrosion in those environments. The RE reducing bushings are copper-free aluminum bodies for exactly that reason.
5) Is this the same thing as the bushing used in a cable bender?
No. The Crouse-Hinds RE is a threaded conduit reducing bushing for hazardous location raceways. A part like the Greenlee 3037AV is a replacement bushing for the 730EBB cable bender, a tool component with no electrical or classified-area function. They are not interchangeable.
6) Can a Greenlee 3037AV bushing be used in place of a Crouse-Hinds RE42-SA reducing bushing?
No. The Greenlee 3037AV is a replacement bushing for the 730EBB cable bender, a wear part for a bending tool rather than a conduit fitting. The Crouse-Hinds RE42-SA is a threaded copper-free aluminum reducing bushing that transitions a 3/4 inch hub to a 1-1/4 inch conduit connection while maintaining explosionproof and dust-ignitionproof integrity in classified raceway systems. The word bushing is doing two different jobs here, so if you are reducing conduit sizes inside a hazardous location enclosure, the RE42-SA is the part, and for the smaller step the same family offers the RE21SA in 3/4 inch x 1/2 inch.
7) Does a threaded explosionproof reducing bushing need a sealing compound or gasket?
The RE bushing relies on its threaded engagement for the connection, so it threads directly into the mating hub or fitting with no separate gasket called out. Nothing else is supplied with the bushing.
8) Where are these Crouse-Hinds reducing bushings typically installed?
Industrial and petrochemical facilities, explosionproof enclosure wiring, dust-ignitionproof equipment enclosures, and any spot where a classified conduit or raceway run changes trade size.
How fast can I get the Crouse-Hinds RE21SA 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 RE21SA come with a warranty?
Absolutely. The Crouse-Hinds RE21SA 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 RE21SA?
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 RE21SA from ZenSupply?
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