What is EMT conduit specifically

An electrical conduit is a protective tube designed to enclose electrical wires for a wide range of building and structural applications. It also safeguards electrical wiring against moisture, impact, chemical vapors, and damage from animals.

Electrical Metallic Tubing (EMT)

Electrical Metallic Tubing (EMT) is a widely used unbending conduit, typically constructed from galvanized steel or aluminum. Referred to as a thin-walled conduit, it is lighter and thinner than Rigid Metal Conduit (RMC). While EMT is rigid, it can be easily bent on-site using a tube bender.

EMT is installed using fittings and couplings secured by compression-type fasteners or setscrews for full protection. Unlike Intermediate Metal Conduit (IMC) and RMC, EMT is not threaded. Standard sizes range from 1 to 1.5 inches. It is commonly used for exposed indoor wiring in light commercial and residential buildings, making it critical to install it with specialized watertight fittings.

Applications

EMT, also known as thin-wall conduit, is a listed circular steel raceway that is unthreaded and nominally 10 feet in length. It is available in trade sizes from 1/2 to 4 inches and must be corrosion-protected on both the interior and exterior surfaces.

EMT is installed with listed compression or set-screw couplings and connectors. Some EMT features an integral set-screw coupling on one end, available in trade sizes 1-1/4 to 4 inches.

Features

• Hot-dipped galvanized inside and out for superior corrosion protection, including metal-to-metal contact and galvanic corrosion resistance.

• Manufactured from high-strength steel with an electric resistance welded seam.

• Clear post-galvanizing coating on the exterior for extra corrosion protection.

• Smooth interior surface for effortless, trouble-free wire pulling.

• Flawless internal and external surfaces with a smooth welded seam.

• Excellent ductility for uniform field bending and cutting.