Relay switches are integral components of electronic circuits that enable the controlled switching of electrical loads. The 1070 B Relay Switch is one of the most popular models, revered for its reliability, durability, and ease of use. However, many people find it challenging to wire this exceptional device. In this article, we will provide a comprehensive guide and wiring diagram that will help you understand the 1070 B Relay Switch wiring requirements and how to install it correctly.
What is a Relay Switch?
A relay switch is a device that enables you to control a high-current, high-voltage circuit with a low-current, low-voltage control signal. It works by using an electromagnetic coil to open or close contacts that switch power to the load. Relay switches are essential to automate complex systems by controlling various functions such as lighting, HVAC systems, and industrial motors.
Relays come in different sizes, shapes, and performance capabilities. However, they all have four fundamental elements: a coil, a set of contacts, a spring, and an armature. The coil is an electromagnet that produces a magnetic field when a current passes through it. The armature is a piece of metal attached to the contacts that moves when the coil is energized, making or breaking the circuit. The spring maintains contact between the armature and the relay body when the coil is not energized, ensuring reliability and stable operation.
1070 B Relay Switch Wiring Requirements
The 1070 B Relay Switch is a double-pole, double-throw (DPDT) relay. It has two sets of normally open (NO) and normally closed (NC) contacts that can switch up to 10Amps of current, making it suitable for various applications that require high current switching. To wire the 1070 B Relay Switch correctly, you need to understand its wiring requirements.
Pin Configuration
Before we dive into the wiring diagram, let’s look at the pin configuration of the 1070 B Relay Switch. This relay switch has eight pins, arranged in two rows of four each. The pins in the top row are numbered 11, 12, 14, and 15, while those in the bottom row are numbered 21, 22, 24, and 25.
Pin 11 is the coil positive (A1), pin 21 is the coil negative (A2), pin 14 is the common terminal of the normally open (NO) contacts, pin 24 is the common terminal of the normally closed (NC) contacts, pin 12 is the NO contact for the first pole, pin 22 is the NC contact for the first pole, pin 15 is the NO contact for the second pole, and pin 25 is the NC contact for the second pole.
Wiring Diagram
Here is a wiring diagram that shows how to wire the 1070 B Relay Switch correctly. Follow these instructions precisely, and you will have a working relay with no issues.
| Pin No | Function | Wire color |
|---|---|---|
| 11 | Coil positive (A1) | Red |
| 21 | Coil negative (A2) | Black |
| 14 | Common terminal of the normally open (NO) contacts | Green |
| 24 | Common terminal of the normally closed (NC) contacts | Brown |
| 12 | NO contact for the first pole | Orange |
| 22 | NC contact for the first pole | Blue |
| 15 | NO contact for the second pole | Yellow |
| 25 | NC contact for the second pole | Gray |
As shown in the diagram, you need to connect the coil positive (A1) to the positive terminal of the power supply, and the coil negative (A2) to the negative terminal of the power supply. Connect the common terminal of the normally open (NO) contacts (pin 14) to the positive side of your load, and the common terminal of the normally closed (NC) contacts (pin 24) to the negative side of your load. Finally, connect the NO contact of the first pole (pin 12) to the NO contact of the second pole (pin 15) and connect the NC contact of the first pole (pin 22) to the NC contact of the second pole (pin 25).
FAQ about 1070 B Relay Switch Wiring
Q: What is the maximum current that the 1070 B Relay Switch can switch?
The 1070 B Relay Switch can switch up to 10Amps of current.
Q: How do I wire the 1070 B Relay Switch?
Follow the wiring diagram provided in this article. Connect the coil positive (A1) to the positive terminal of the power supply, and the coil negative (A2) to the negative terminal of the power supply. Connect the common terminal of the normally open (NO) contacts (pin 14) to the positive side of your load, and the common terminal of the normally closed (NC) contacts (pin 24) to the negative side of your load. Finally, connect the NO contact of the first pole (pin 12) to the NO contact of the second pole (pin 15) and connect the NC contact of the first pole (pin 22) to the NC contact of the second pole (pin 25).
Q: Can I use the 1070 B Relay Switch to control a motor?
Yes, you can use the 1070 B Relay Switch to control a motor, provided it does not exceed the switching capacity of the relay.
Q: What is the difference between the NO and NC contacts?
The NO contact is normally open, meaning that the circuit is open when the relay coil is not energized. When the coil is energized, the NO contact closes, completing the circuit. On the other hand, the NC contact is normally closed, meaning that the circuit is closed when the relay coil is not energized. When the coil is energized, the NC contact opens, breaking the circuit.
Q: What is a double-pole, double-throw (DPDT) relay?
A DPDT relay has two sets of contacts that can be used to control two different circuits simultaneously. It has two NO and two NC contacts, allowing it to switch two loads independently or in parallel.
Conclusion
We hope this article has provided you with a comprehensive guide on how to wire the 1070 B Relay Switch. Getting it right is essential for optimal performance and longevity of your circuit. Remember to follow the wiring diagram provided and observe recommended safety precautions. With the right tools and knowledge, you can wire the 1070 B Relay Switch like a pro.
