Relays are important components of electrical circuits that allow you to control a high current circuit with a low current signal. They consist of an electromagnet and a set of contacts that are mechanically linked to the magnet. When the magnet is energized, the contacts close, allowing current to flow through the high current circuit.
Relays require a socket or base to securely hold them in place and provide connection points for the wires. This article will discuss the wiring diagram for an 11 pin relay base, which is used in many industrial and automation applications.
11 Pin Relay Base Overview
The 11 pin relay base consists of 11 pins arranged in a circular pattern. Six pins are used for the coil connections, and the remaining five pins are used for the contact connections. The pins are numbered clockwise from the top, starting with pin 1.
The coil connections are typically marked as A1 and A2, and the contact connections are marked with labels indicating their function (e.g., NO for Normally Open and NC for Normally Closed).
Wiring Connections
The wiring connections for the 11 pin relay base will vary depending on the specific application, but the following diagram provides a general overview:
| Pin Number | Connection |
|---|---|
| 1 | NC contact 2 |
| 2 | NO contact 2 |
| 3 | NC contact 1 |
| 4 | NO contact 1 |
| 5 | Common contact |
| 6 | NO contact 4 |
| 7 | NC contact 4 |
| 8 | NO contact 3 |
| 9 | NC contact 3 |
| 10 | A2 coil connection |
| 11 | A1 coil connection |
The coil connections are typically connected to a low current control circuit, such as a PLC or other control device. When the control circuit sends a signal to energize the coil, the contacts of the relay will change state.
FAQs
What is the difference between NO and NC contacts?
NO contacts are Normally Open, meaning that they are not connected when the relay is de-energized. When the relay is energized, the contacts close and allow current to flow through the circuit. NC contacts are Normally Closed, meaning that they are connected when the relay is de-energized. When the relay is energized, the contacts open and interrupt the flow of current.
What is the purpose of an 11 pin relay base?
The 11 pin relay base provides a secure mounting point for the relay and allows for easy wiring connections. It also provides a standardized connection point that can be used with multiple types of relays, making it a versatile component for many applications.
How is the 11 pin relay base wired in a typical control circuit?
In a typical control circuit, the coil connections of the 11 pin relay base are connected to a low current control circuit. The contacts of the relay are then connected to the high current circuit that needs to be controlled. When the control circuit sends a signal to energize the relay coil, the contacts of the relay will change state and allow current to flow through the high current circuit.
What types of applications use 11 pin relays?
11 pin relays are commonly used in industrial and automation applications, such as control panels, motor controls, and machine automation. They are often used to control high current circuits that require a low current control signal.
What are some common problems with relay wiring?
Common problems with relay wiring include incorrect wiring connections, loose or faulty connections, and incorrect voltage or current ratings. It is important to carefully follow the wiring diagram for your specific application and to ensure that all connections are secure and properly rated for the voltage and current requirements of your circuit.
Conclusion
The 11 pin relay base is an important component in many industrial and automation applications. Understanding the wiring diagram for this component is essential for proper installation and operation. By following the tips and information provided in this article, you can ensure that your 11 pin relay base is wired correctly and functions as intended.
