
In electrical engineering, LB is a term used to refer to a specific configuration of a conduit body, which is used to join sections of conduit (also known as a pipe). The LB conduit body is used to route electrical wires through surfaces, often from the outside of a structure through the wall and to the inside. It is characterised by its L shape and the position of its access point, which is on the back of the body, opposite the cover. This type of conduit body is essential for following safety codes, such as those dictated by the Occupational Safety and Health Administration (OSHA).
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What You'll Learn

LB is an electrical fitting
Conduit bodies are junctures that connect the protective raceways that transport electrical wires between destinations. They are used to conceal wires and prevent damage from moisture, humidity, heat, corrosion, and other physical damage. The LB conduit body is one of several types, including LR (ell right), LL (ell left), T (tee), C (cee), and SLB (service ell back).
Electricians use LB conduit bodies to route electrical wires through surfaces, often from the outside of a structure through the wall and to the inside. The LB conduit body has two conduit hubs and forms a right angle. The access point is on the back of the body, opposite the cover. This allows electricians to redirect conduits along the same plane.
In the context of a 240V motor, LB can also refer to "live connection 2 (120V)".
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LB allows wires to be routed through surfaces
LB stands for "L-type conduit body" and is used to refer to electrical fittings that allow for a 90-degree change in the direction of wires. The letter "L" indicates an L-shape, and the "B" specifies that the exit point of the wire is at the back of the body.
Conduit bodies are junctures that connect the protective raceways that transport electrical wires between destinations. They are used to conceal wires and prevent damage from moisture, humidity, heat, corrosion, and other physical damage.
The LB conduit body is one of the most common types, featuring two conduit hubs that form a right angle. The access point for an LB conduit body is on the back of the body, opposite the cover. This design allows electricians to route wires through surfaces, often from the outside of a structure through the wall and to the inside.
Using the appropriate conduit body type is essential for adhering to Occupational Safety and Health Administration (OSHA) codes. The LB conduit body provides pull, splice, and tap access, and its non-conductive and durable material prevents rust.
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LB is a type of conduit body
The letter 'L' in LB indicates an L-shape, with the second letter describing the direction the wire exits relative to its entry point. LB stands for "L-type conduit body", with the access point on the back of the body, opposite the cover. It forms a right angle and includes two conduit hubs. Electricians use LB conduit bodies to route electrical wires through surfaces, often from the outside of a structure through the wall and to the inside.
The LB conduit body is one of several types of conduit bodies, including LR, LL, T, X, C, and SLB. These conduit bodies differ in shape and the direction of the wire exit. For example, the LR conduit body also forms an L-shape but has an exit point on the right side of the body, while the LL conduit body exits on the left.
Using the appropriate type of conduit body for a specific application is essential to following relevant codes and ensuring safety. Conduit bodies provide protection for electrical wires, shielding them from moisture, humidity, heat, corrosion, and physical damage. They also feature removable covers, allowing electricians to easily access and feed electrical wires.
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LB is a live connection
LB is also used to refer to an L-type conduit body, which is a type of electrical fitting used with conduits or EMT that allows for a 90-degree change in direction. The "L" in LB stands for "el", indicating a 90-degree turn, while the "B" stands for "back", indicating that the outlet or inlet is on the back of the conduit body. This type of conduit body is used to route electrical wires through surfaces, often from the outside of a structure through the wall and to the inside.
Conduit bodies are junctures that connect the protective raceways that transport electrical wires between destinations. They are used to conceal wires, prevent damage, and redirect the raceway. The raceway protects the wire from moisture, humidity, heat, corrosion, and other physical damage.
It is important to note that there are various types of conduit bodies, each with unique features and applications. For example, some conduit bodies are straight, while others form a right angle. Some have multiple conduit hubs, creating a T or X shape, while others have a single hole to form a termination point.
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LB is an abbreviation for L-type conduit body
LB stands for "L-type conduit body". It is one of the six common conduit body types, which are used to connect and protect electrical wires. Conduit bodies are available in different shapes and sizes, with the first letter describing its shape and the second letter describing the direction the wire exits relative to its entry point.
The letter "L" in LB indicates an L-shape, while the letter "B" describes the direction of the wire exit, which in this case is "back". An LB conduit body 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, such as from the outside of a structure through the wall and to the inside. This type of conduit body allows for a 90-degree change in the direction of the wire.
Conduit bodies are essential in electrical wiring as they act as a connecting component and provide protection for the wires. They help to conceal the wires, prevent damage, and protect them from moisture, humidity, heat, corrosion, and other physical damage.
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Frequently asked questions
LB is a specific configuration of what's called a "conduit body," which is used to join sections of conduit (AKA "pipe"). The LB opens on the face directly opposite the short side opening. 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.
Conduit bodies are junctures that connect the protective raceways that transport electrical wire between destinations. They 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.
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. There are six common conduit body types: LR, LL, LB, T, X, and SLB.
























