Relays are essential components in modern electronic devices and appliances. They are used to switch high-power loads with low-power control signals. The 14089936 relay is a popular model used in various applications. In this article, we will discuss the wiring diagram for this relay and its applications.
What is a Relay?
A relay is an electrically operated switch that uses an electromagnet to control the switching of a circuit. It consists of a coil and one or more contacts that can be normally open or normally closed. When the coil is energized, it attracts the contacts, closing or opening the circuit. Relays provide electrical isolation between the control circuit and the load circuit, allowing different voltage levels to be used without causing damage to the control circuit.
Types of Relays
There are various types of relays, including:
| Type | Description |
|---|---|
| Electromagnetic relays | Uses an electromagnet to control the contacts |
| Reed relays | Uses a spring-loaded metal reed to control the contacts |
| Solid-state relays | Uses a semiconductor device to control the switching |
The 14089936 relay is an electromagnetic relay that operates at 12 volts.
Wiring Diagram for 14089936 Relay
The wiring diagram for the 14089936 relay is shown below:
The relay has five terminals: two for the coil and three for the contacts. The coil terminals are labeled as Coil+ and Coil-. The contact terminals are labeled as Common, Normally Open (NO), and Normally Closed (NC).
Wiring Instructions
The wiring instructions for the 14089936 relay are as follows:
- Connect one end of the Coil+ terminal to the positive terminal of the power supply.
- Connect the other end of the Coil- terminal to the negative terminal of the power supply.
- Connect the Common terminal to the positive terminal of the load.
- Connect the NO terminal to the negative terminal of the load.
- Connect the NC terminal to the negative terminal of the power supply.
Applications of 14089936 Relay
The 14089936 relay is commonly used in various applications, including:
- Automotive applications: It is used in cars, trucks, and other vehicles to control various electrical systems, such as lights, horns, and fans.
- Industrial applications: It is used in factories and plants to control machinery and equipment, such as motors, pumps, and heaters.
- HVAC applications: It is used in heating, ventilation, and air conditioning systems to control fans and compressors.
FAQ
Here are some frequently asked questions about the 14089936 relay:
What is the maximum current rating of the contacts?
The contacts of the relay have a maximum current rating of 30 amperes.
What is the maximum voltage rating of the contacts?
The contacts of the relay have a maximum voltage rating of 250 volts AC/DC.
What is the coil resistance of the relay?
The coil resistance of the relay is approximately 80 ohms.
Can the relay be used to switch DC loads?
Yes, the relay can be used to switch both AC and DC loads.
What is the operating temperature range of the relay?
The operating temperature range of the relay is -40°C to +85°C.
Conclusion
The 14089936 relay is a versatile component that can be used in various applications. By following the wiring diagram and instructions provided in this article, you can effectively control high-power loads using a low-power signal. Whether you are an electronics hobbyist or a professional engineer, understanding relays is essential for designing and building electronic circuits.
