A 120V 3 wire prox switch is a device that is used to detect the presence of objects without coming into physical contact with them. It is often used in industrial applications, such as in conveyor belts, assembly lines, and other manufacturing processes. In this article, we will discuss the wiring diagram for a 120V 3 wire prox switch.
What is a 120V 3 Wire Prox Switch?
A 120V 3 wire prox switch is a device that uses electromagnetic fields to detect the presence of objects. It is also known as an inductive proximity sensor. These sensors are designed to detect metal objects, but they can also detect non-metallic objects that have a high dielectric constant, such as liquids and plastics.
The 120V 3 wire prox switch is a type of inductive proximity sensor that operates on a 120V AC power supply. It has three wires: a brown wire, a blue wire, and a black wire. The brown wire is the hot wire, the blue wire is the neutral wire, and the black wire is the output wire.
Wiring Diagram for a 120V 3 Wire Prox Switch
The wiring diagram for a 120V 3 wire prox switch is relatively simple. The brown wire is connected to the hot wire of the power supply, the blue wire is connected to the neutral wire of the power supply, and the black wire is connected to the load or the device that needs to be controlled.
Here is a table that summarizes the wiring connections:
| Wire Color | Connection |
|---|---|
| Brown | Hot wire of power supply |
| Blue | Neutral wire of power supply |
| Black | Load or device that needs to be controlled |
FAQs
What is the function of a 120V 3 wire prox switch?
A 120V 3 wire prox switch is used to detect the presence of objects without coming into physical contact with them. It is often used in industrial applications, such as in conveyor belts, assembly lines, and other manufacturing processes, to detect the presence of metal objects or objects with a high dielectric constant.
What is the difference between a 2 wire and a 3 wire prox switch?
A 2 wire prox switch has two wires: a power wire and an output wire. The power wire is connected to a power source, and the output wire is connected to a load or a device that needs to be controlled. A 3 wire prox switch, on the other hand, has an additional wire for the neutral connection.
Can a 120V 3 wire prox switch be used with a DC power supply?
No, a 120V 3 wire prox switch is designed to operate on a 120V AC power supply. If you need to use a prox switch with a DC power supply, you will need to use a DC prox switch.
What is the maximum distance at which a 120V 3 wire prox switch can detect an object?
The maximum detection distance of a 120V 3 wire prox switch depends on the size, shape, and material of the object being detected, as well as the sensing range of the particular model of the switch. Typically, the maximum detection distance ranges from a few millimeters to several centimeters.
What is the difference between a normally open and a normally closed 120V 3 wire prox switch?
A normally open prox switch is one that is open when no object is detected, and it closes when an object is detected. A normally closed prox switch, on the other hand, is one that is closed when no object is detected, and it opens when an object is detected.
When choosing a prox switch, you should consider whether you need a normally open or a normally closed switch based on the requirements of your particular application.
