Limit switches are used to detect the presence or absence of an object or to limit the travel of a machine element. Allen Bradley 802T limit switches are electromechanical devices that are used in a variety of applications. In this article, we will discuss the wiring diagram for the Allen Bradley 802T limit switch.
What Is a Limit Switch?
A limit switch is a device that is used to detect the presence or absence of an object or to limit the travel of a machine element. It is an electromechanical device that consists of an actuator and a set of contacts. When the actuator is activated, it moves the contacts to either an open or closed position.
Limit switches are commonly used in industrial applications. They can be used to detect the position of a machine element, such as a valve or gate, and to limit the travel of that element. They can also be used to detect the presence or absence of an object, such as a part on a production line.
Allen Bradley 802T Limit Switch Overview
The Allen Bradley 802T limit switch is a popular model that is used in a variety of applications. It is a compact switch that is designed to be mounted on a machine or in a panel. The switch has a rugged construction that makes it suitable for use in harsh environments.
The 802T limit switch has a variety of features, including:
- Compact size
- Rugged construction
- Choice of actuator styles
- Choice of contacts
- Choice of mounting options
Wiring Diagram for Allen Bradley 802T Limit Switch
The wiring diagram for the Allen Bradley 802T limit switch depends on the specific model and application. However, there are some general guidelines that can be followed.
Step 1: Determine the Actuator Style
The first step in wiring an Allen Bradley 802T limit switch is to determine the actuator style. The actuator is the part of the switch that is used to detect the presence or absence of an object. There are several types of actuators available for the 802T limit switch, including:
- Plunger
- Roller
- Whisker
The choice of actuator will depend on the specific application. Once the actuator style has been determined, the wiring diagram can be created.
Step 2: Determine the Contact Configuration
The second step in wiring an Allen Bradley 802T limit switch is to determine the contact configuration. The contacts are the part of the switch that are used to make or break an electrical connection. There are several types of contacts available for the 802T limit switch, including:
- Normally open (NO)
- Normally closed (NC)
- Changeover (CO)
The choice of contact configuration will depend on the specific application. Once the contact configuration has been determined, the wiring diagram can be created.
Step 3: Determine the Wiring Connections
The third step in wiring an Allen Bradley 802T limit switch is to determine the wiring connections. The switch has a set of terminals that are used to connect the switch to the electrical circuit. The wiring connections will depend on the specific model and application.
It is important to follow the wiring diagram carefully to ensure that the switch is wired correctly. Incorrect wiring can result in the switch not functioning properly and can even cause damage to the switch or the electrical circuit.
FAQs
What is an Allen Bradley 802T limit switch?
An Allen Bradley 802T limit switch is an electromechanical device that is used to detect the presence or absence of an object or to limit the travel of a machine element. It is a compact switch that is designed to be mounted on a machine or in a panel. The switch has a rugged construction that makes it suitable for use in harsh environments.
What are the features of the Allen Bradley 802T limit switch?
The features of the Allen Bradley 802T limit switch include a compact size, rugged construction, choice of actuator styles, choice of contacts, and choice of mounting options.
How do I wire an Allen Bradley 802T limit switch?
To wire an Allen Bradley 802T limit switch, you need to determine the actuator style, contact configuration, and wiring connections. Follow the wiring diagram carefully to ensure that the switch is wired correctly. Incorrect wiring can result in the switch not functioning properly and can even cause damage to the switch or the electrical circuit.
| Actuator Style | Contact Configuration | Wiring Connections |
|---|---|---|
| Plunger | NO | Connect the common terminal to the power source, and the normally open terminal to the load. |
| Roller | NC | Connect the common terminal to ground, and the normally closed terminal to the load. |
| Whisker | CO | Connect the common terminal to the power source, the normally open terminal to the load, and the normally closed terminal to ground. |
