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Electrical Conduit Couplings

Conduit couplings are used to connect sections of conduit together, providing a secure, continuous pathway for electrical wiring. They are essential in maintaining the integrity of a conduit system and are available in various types, such as threaded couplings for rigid metal conduit (RMC) and compression or set screw couplings for electrical metallic tubing (EMT). Shop confidently with LiveWire Supply, where fast, flexible shipping is available for every order. We carry a variety of conduit couplings from major brands like Crouse-Hinds.

Since 2005, LiveWire Electrical Supply has been providing quality parts and fast shipping for in-stock products—including hard-to-find conduit accessories. Need help finding products? For 24/7 sales assistance, call 1-650-692-0700.

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Showing 1–48 of 75 results

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Showing 1–48 of 75 results

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Frequently Asked Questions

LiveWire Electrical Supply is your trusted source for hard-to-find electrical supplies, offering a wide selection of circuit breakers, fuses, safety switches, and industrial control products—all ready to ship the same day. With real-time stock and price checks, you can easily find what you need at competitive prices, whether for residential, commercial, or industrial projects. Our experts are available to assist with part identification and technical support, while our expedited shipping options and free UPS Ground shipping on qualifying orders ensure fast delivery. For 24/7 assistance and personalized support, call 1-650-692-0700.

What is the difference between an EMT connector and an EMT coupling?

An EMT connector is used to join the end of an electrical metallic tubing (EMT) conduit to a box, panel, or enclosure, providing a secure attachment and maintaining electrical continuity. In contrast, an EMT coupling is used to join two separate sections of EMT conduit together in a straight run, extending the conduit pathway while ensuring a continuous electrical and mechanical connection. Essentially, connectors attach conduit to enclosures, while couplings join conduit sections to each other.

Are EMT and IMC connectors interchangeable?

No, EMT and IMC connectors are not interchangeable. EMT (Electrical Metallic Tubing) connectors are specifically designed for the thinner walls and compression or set screw attachment methods of EMT conduit, while IMC (Intermediate Metal Conduit) connectors are built to handle the thicker, threaded walls of IMC conduit. Using the wrong connector can lead to a weak or unsafe connection that does not comply with electrical codes. Always use connectors that are specifically rated and designed for the conduit type you are working with to ensure proper installation and safety.

Can you use EMT compression connectors on rigid conduit?

No, EMT compression connectors should not be used on rigid conduit. EMT connectors are specifically designed for the thinner walls of Electrical Metallic Tubing (EMT) and may not properly fit or secure rigid conduit, which has thicker walls and different mechanical properties. Rigid conduit requires connectors that are designed to handle its threaded or compression fittings, ensuring a secure and code-compliant installation. Using EMT connectors on rigid conduit can compromise the safety and reliability of the conduit system and may violate electrical codes.

Which coupling type handles vibration best?

Threaded couplings generally handle vibration best, as they provide a secure and mechanically strong connection that is less likely to loosen or shift under vibration. These couplings are commonly used with rigid metal conduit (RMC) and intermediate metal conduit (IMC) in industrial settings where equipment or environmental conditions generate significant vibration. Additionally, set screw couplings with locking features can be used for EMT in moderate vibration conditions, but threaded couplings remain the preferred choice for high-vibration environments.

When should I use set screws vs. compression couplings?
Set screw couplings are typically used for indoor applications in dry locations where quick and easy installation is needed, such as in commercial buildings. They provide a secure mechanical connection for Electrical Metallic Tubing (EMT) but are less watertight than compression couplings. Compression couplings, on the other hand, should be used in locations where a more secure and moisture-resistant seal is required, such as outdoor or damp environments. Compression fittings ensure a tighter fit and are generally preferred when higher mechanical strength or a weatherproof connection is needed. Always follow local code requirements for specific applications.

Shipping and Returns

Easy Returns
You may return items within 30 days of delivery for a refund. Please view our return policy here.

FREE Shipping on orders over $100

We offer one to five-day delivery in the United States. The variation depends on the chosen shipping speed and the warehouse location for the product(s). Please view our shipping policy here.

Same-Day Shipping

We strive to ship out your items within one business day. The shipping process may take up to 5 business days on some occasions. Feel free to contact us if your order is time sensitive. Call 1-650-692-0700 or email sales@livewiresupply.com for help.

Limited Warranty

Warranty Gurantee
LiveWire certifies that every product shipped out of stock, by manufacturers and by fulfillment partners will be free of functional defects for one (1) year. If any part is found with functional defects during the warranty period, LiveWire will send out a replacement item for free. Warranty items must be returned to LiveWire for inspection and must be postmarked within the warranty period.

Contact our support team by emailing support@livewiresupply.com or calling 1-650-692-0700 during normal business hours for help with your warranty claim.

Disclaimer: Livewire Electrical Supply is not affiliated with, authorized by, or acting as a representative for the brands showcased on our platform. Please be aware that products sold by Livewire Electrical Supply do not include the original manufacturer’s warranty. All trademarks, brand names, and logos featured on this website belong to their respective owners. It’s important to note that this website is not endorsed, sanctioned, or approved by any of the manufacturers or trademark holders mentioned.

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LiveWire Electrical Supply PO Box 4221 Burlingame, CA 94011

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