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Conduit bodies are junctures that connect the protective raceways that transport electrical wire between destinations. There are multiple types of conduit bodies, each redirecting wires in a unique way. Using the appropriate conduit body type for an application is essential to following relevant codes that the Occupational Safety and Health Administration (OSHA) dictates.

What Is a Conduit Body?

A conduit body is a connecting component for two pieces of conduit. When electricians run wires along a surface, they use conduits to conceal the wires and prevent damage. A conduit is a pipe that forms a channel or raceway for electrical wires. The raceway protects the wire from moisture, humidity, heat, corrosion and other physical damage. Conduit bodies allow electricians to change the direction the raceway travels.

The conduit body acts as a joint, allowing the raceway to bend and project in a different direction. An electrician feeds wire through a hole on one end and out of another. Each type features a removable cover that allows the electrician to more easily access and feed electrical wires. A gasket between the cover and the body prevents moisture from entering.

Some conduit bodies are straight, while others form a right angle. Some include more than one conduit hub to create a T or X shape that sends or receives wires from two different directions. Other conduit bodies feature one hole to form a termination point.

Types of Conduit Bodies

There are various types of conduit bodies. Primary differences between types include the material and shape.

Metal conduit bodies comprise a metallic material and include connection points for metal conduits. These bodies’ holes are either threaded or unthreaded hubs. Threaded hubs allow the electrician to screw the conduit into the body. Unthreaded hubs feature a set screw that tightens to hold the conduit to the body.

There are also polyvinyl chloride (PVC) conduit bodies for PVC conduits. Some PVC conduit bodies feature threaded hubs, while others require glue to bind the conduit to the body. OSHA requires metal conduits for aboveground commercial environments.

Regardless of material, each conduit body falls into a category depending on two factors — its shape and the location of its removable plate. Conduit body type descriptions include one or two letters. The first letter describes its shape. The letter L indicates an L shape, while T and X each describe corresponding shapes. The second letter describes the direction the wire exits relative to its entry point. There are six common conduit body types:

• LR
• LL
• LB
• T
• X
• Type C

LR Conduit Body

An LR conduit body is a variation with two conduit hubs. LR conduit bodies form an L shape that allows the electrician to adjust the raceway’s orientation by 90 degrees. They accept electrical wire through a conduit hub at the top, then direct it out through a second conduit hub on the right. This allows electricians to redirect conduits along the same plane.

LL Conduit Body

An LL conduit body is another two-hub version that forms an L shape. It diverts the raceway at a 90-degree angle and has an exit point on the left side of the body. The electrician feeds wires from an access point on top of the body and out to the left. Like LR conduit bodies, LL bodies redirect conduits on the same plane.

LB Conduit Body

An LB conduit body is the third type that forms a right angle and includes two conduit hubs. The access point on an LB conduit body is on the back of the body on the opposite side of the cover. Electricians often use LB conduit bodies to route electrical wires through surfaces, often from the outside of a structure through the wall and to the inside.

T-Shaped Conduit Body

The T-shaped conduit body is the first type with more than two conduit hubs. A T-shaped body has two conduit hubs that mirror each other and one that points at a 90-degree angle from the other two. T-shaped conduit bodies allow electricians to either merge wires from two different locations or route wires from one source to two separate locations.

X-Shaped Conduit Body

An X-shaped conduit body has four hubs that accept and redirect electrical wires. Each X-shaped conduit body features two sets of parallel conduit hubs. Establishing a juncture for four separate conduit raceways simplifies the processes of installing and maintaining electrical wires.

Type C Conduit Body

Type C conduit bodies connect two conduits in a straight line. There are openings at the top and bottom for conduits to connect with the body. While Type C conduit bodies do not alter the direction that the wires travel, they feature removable plates to create serviceable points along the raceway.

 

 

Explore the AerosUSA Conduit Body Inventory

AerosUSA is a leading provider of metal conduits and accessories like conduit bodies in Harrisburg, Pennsylvania. Our inventory features each common type of conduit body to correspond with industrial conduits used in numerous settings. We encourage you to browse our online catalog to order conduits and accessories or submit a contact form for more information on the products you need.

If you want to learn more, please visit our website square-lock sus flexible metal conduit.

Reviewed for accuracy by: George Sims.

George Sims is an engineering and service-oriented leader in Cable Protection and Cable Management Products. Focus is on 100% commitment to customer satisfaction. AerosUSA is a small, agile, independent company whose focus is on our customers.

Understanding the Different Types of Electrical Conduit Fittings

Cabex India

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4 min read

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Aug 22, 2023

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Introduction

Electrical conduits play a crucial role in the safe and organized distribution of electrical wiring within buildings and structures. They provide protection to the wiring from physical damage, moisture, and other environmental factors, ensuring the safety and reliability of electrical systems. In this blog, we will explore the different types of electrical conduit, their uses, and the factors to consider when choosing the right conduit for your needs. Electrical conduit is a system of pipes, tubes, or channels that protect and route electrical wiring.Electrical conduits are used in residential, commercial, and industrial settings to maintain the integrity and safety of electrical installations.

What is Electrical Conduit

Electrical conduit serves as a protective enclosure for electrical wires, preventing them from being damaged due to environmental factors, mechanical stress, or other hazards. It also allows for organized cable management, making it easier to install, maintain, and replace wiring when necessary. Conduits come in various materials and sizes to cater to different applications and requirements.

Types of Electrical Conduit

1. PVC Conduit

PVC (Polyvinyl Chloride) conduit is a popular choice due to its affordability and corrosion resistance. It is suitable for both indoor and outdoor installations and is commonly used in residential electrical systems. PVC conduit is available in different sizes and can be easily cut and assembled using solvent cement.

2. Rigid Metal Conduit (RMC)

RMC is a heavy-duty conduit made of galvanized steel or aluminum. It offers excellent protection against physical damage and is commonly used in commercial and industrial applications. RMC is ideal for locations where wiring is exposed to potential impact or corrosive environments.

3. Electrical Metallic Tubing (EMT)

EMT is a lightweight conduit made of thin-walled galvanized steel or aluminum. It is easy to bend and install, making it a popular choice for exposed electrical installations. EMT is commonly used in residential and commercial applications where flexibility and cost-effectiveness are important.

4. Flexible ConduitFlexible Conduit

Flexible conduits, such as flexible metal conduit (FMC) and liquidtight flexible conduit (LFMC), offer versatility in routing wires in tight spaces or areas with frequent movement. FMC is typically used indoors, while LFMC is suitable for both indoor and outdoor applications where moisture resistance is required.

5. Intermediate Metal Conduit (IMC)

IMC is a thicker-walled conduit made of galvanized steel. It provides a balance between the strength of RMC and the flexibility of EMT. IMC is often used in areas where mechanical protection and ease of installation are priorities.

6. Liquidtight Flexible Conduit (LFMC)

LFMC, often referred to as “sealtight” conduit, is designed to prevent the ingress of moisture and liquids. It is commonly used in areas where wiring may be exposed to water, oil, or other liquids. LFMC is available in both metallic and non-metallic forms.

Factors to Consider When Choosing Electrical Conduit

Environmental Conditions:

Consider the environment where the conduit will be installed, including exposure to moisture, chemicals, and extreme temperatures.

Installation Method:

Some conduits are more suitable for specific installation methods, such as buried, exposed, or concealed installations.

Wiring Size:

Choose a conduit that accommodates the size and number of wires you need to run.

Mechanical Protection:

Select a conduit that provides adequate protection against physical impact and damage.

Corrosion Resistance:

Depending on the environment, choose a conduit material that offers corrosion resistance to ensure long-term durability.

Cost and Budget:

Different conduit types vary in cost, so consider your budget when making a choice.

Installation Tips

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