How to wire a push button switch may be a small problem that plagues some people. This article will introduce you to how to wire a push button switch.
How to Wire a Push Button Switch?
What is a push button switch?
Push button switches are devices that can turn on or off a control circuit by pressing a button.
Metal push button switches are durable and reliable, and they are widely used in various applications.
They can manually send control signals to other electrical appliances, such as contactors, relays, and electromagnetic starters. Push button switches are essential for electric drag and master control systems.
Push button switches are devices that can change the state of a control circuit by pressing a button.They have different types depending on how they return to their original position.
Latching push button switches stay in the second state until they are pressed again.
Momentary push button switches return to the original state as soon as the button is released.
Emergency stop push button switches are used to cut off the power in urgent situations.
Push button switches are common in many machines and instruments.
A summarized push button switch is a type of switch that can control the on and off of a circuit by pressing or releasing a button. They have different types and functions, as shown in the table below:
|Momentary Push Button Switch||Only turns on the circuit when the button is pressed, and turns off when released||Doorbell, keyboard|
|Latching Push Button Switch||Switches the circuit state when the button is pressed, and returns to the original state when pressed again||Light switch, electric fan|
|Illuminated Push Button Switch||Has a light on the button to indicate the circuit state||Computer power switch, car dashboard|
|Emergency Stop||Used to cut off the power in emergency situations, usually has a red button and a yellow background||Factory machine, elevator|
Different push button switch wiring can complete the basic control, such as start, stop, positive and negative rotation, speed change and interlock, etc.
Usually, per push button has two pairs of contactors. Each pair consists of one normally open contactor and one normally closed contactor.
When pressing the button, both pairs of contactors act simultaneously, the normally closed contact is disconnected, while the normally open contact is closed.
How to wire a push button switch?
Below is a table showing the types of terminals for push button switches:
|Pin terminal||A metal pin that can be inserted into a socket or a hole on a circuit board||Easy to install and remove, compatible with many devices and connectors||May become loose or bent over time, may cause short circuits if not properly insulated|
|Plug terminal||A metal plug that can be inserted into a socket or a jack on a circuit board or a device||Easy to install and remove, compatible with many devices and connectors, can provide secure and stable connections||May become loose or damaged over time, may cause short circuits if not properly insulated|
|Screw terminal||A metal screw that can be tightened or loosened to attach or detach a wire or a terminal to a circuit board or a device||Can provide strong and reliable connections, can handle high currents and voltages, can prevent accidental disconnection||May require tools and skills to install and remove, may cause damage to the circuit board or the device if overtightened or stripped|
|Wire terminal||A metal wire that can be soldered or crimped to a circuit board or a device||Can provide flexible and customized connections, can handle high currents and voltages, can prevent accidental disconnection||May require tools and skills to install and remove, may cause damage to the circuit board or the device if overheated or cut|
|Wire button||A button switch that has wires attached to it directly without any terminals||Can provide waterproof protection for the switch and the wires, can be easily installed without any sockets or holes on the circuit board or the device||May have limited compatibility with other devices and connectors, may have limited flexibility and customization options|
Button switches come in various sizes and types, including a wide variety of push button switches.
However, their wiring methods are relatively uniform. In the following, we will provide detailed instructions on how to wire different types of push button switches.
How to Wire a 2 Wire Push Button Switch?
When you purchase a push button switch with only two pins, it means that this type of switch is the most basic one, responsible for only two functions, which are turning on and off. This type of button has a simple wiring process and is easy to operate.
The wiring method of the product is very simple. Connect the switch’s positive pole to one pin of the push button, then connect them from the other pin.
As the Picture Shows:
Normally open wiring method
Press down the push button, the power is on and with load, release the push button, the power is off.
2PIN Push button switch diagram
How to Wire a Push Button Switch for 4 Pins?
A 4 pin push button switch is a type of switch that has four metal pins or terminals on the bottom, which are used to connect the switch to a circuit board or other device.
If the push button switch is a momentary switch, which means it only stays on or off while it is being pressed. When the button is released, the switch returns to its original state.
A 4 pin push button switch can be used for various applications, such as controlling lights, fans, alarms, and other electronic devices. They are often found in keyboards, mice, calculators, remote controls, and toys. Some 4 pin push button switches are also illuminated, which means they have a built-in LED light that can indicate the status of the switch or the device.
To wire a 4 pin push button switch, you need to identify the function of each pin. Usually, two pins are for the switch contacts, and two pins are for the LED light. The switch contacts are normally open (NO) or normally closed (NC), which means they are either disconnected or connected when the button is not pressed. The LED light pins are positive (+) and negative (-), which determine the polarity of the current that flows through the light.
To connect a 4 pin push button switch to a circuit, you need to follow these steps:
- Choose a suitable power source for the switch and the device you want to control. For example, if you want to use a 12V battery to power a 12V LED light, you need to use a 12V push button switch with a 12V LED light.
- Connect one of the switch contact pins to the positive (+) terminal of the power source. This pin will be the common © pin of the switch.
- Connect the other switch contact pin to one of the wires of the device you want to control. This pin will be either the NO or NC pin of the switch, depending on how you want the device to work. For example, if you want the device to turn on when you press the button, you need to use the NO pin. If you want the device to turn off when you press the button, you need to use the NC pin.
- Connect the other wire of the device you want to control to the negative (-) terminal of the power source.
- Connect one of the LED light pins to either the C or NO/NC pin of the switch. This pin will be either positive (+) or negative (-) of the LED light, depending on how you want it to illuminate. For example, if you want it to light up when you press the button, you need to connect it to the NO/NC pin. If you want it to light up when you release the button, you need to connect it to the C pin.
- Connect the other LED light pin to either the positive (+) or negative (-) terminal of the power source. This pin will be either positive (+) or negative (-) of the LED light, depending on how you connected it in step 5.
You have successfully wired a 4 pin push button switch. You can test it by pressing and releasing the button and observing how it affects your device and LED light.
A 4 pin push button switch is a simple and versatile component that can be used for many purposes. By following these steps, you can easily wire it and enjoy its benefits.
4PIN Push button switch diagram
How to Wire a Push Button Switch for 5 Pins?
5-pin switches are the most commonly used type of push button switch. These buttons come with a light and you can freely choose the color of the light and the symbol on the surface of the button.
Most devices with lighted buttons have a circular or circular power symbol, while switches with symbols usually appear in automobiles, yachts, amusement equipment, etc.
Some button manufacturers also support customized symbol production, which can engrave their own LOGO on the surface of the button, thereby highlighting their brand and making it more recognizable.
The button in the picture is a 19mm stainless steel metal push button switch, that has the function of self-locking, 1NO1NC, red, 12V, and 5 pins.
The pins are divided into NC normally closed pin, NO normally open pin, C public pin and two lamp pins.
Conventional lamp bead configuration without positive and negative polarity. The lamp bead is relatively independent of the switch, which can be controlled by a switch or peripheral circuits.
Connection method 1
When the push-button switch is not pressed, its light is off and the device is inactive. Pressing the switch turns on its light and activates the device.
|Button State||Device||LED Lights|
5PIN Push button switch diagram method 1
Connection method 2
The device works normally when the button ignition switch light is on. When the light is off, the device stops working.
|Button State||Device||LED Lights|
5PIN Push button switch diagram method 2
Connection method 3
The device is inactive until the push-button switch is pressed. The switch light stays on all the time.
|Button State||Device||LED Lights|
5PIN Push button switch diagram method 3
Connection method 4
The device works continuously unless the push-button switch is pressed. The switch light does not change and remains on.
|Button State||Device||LED Lights|
5PIN Push button switch diagram method 4
It can be used with the corresponding button harness, the button harness is shown in the figure:
- Black wire and red wire represent the LED light wire
- Yellow wire represents NC wire
- Blue wire stands for NO wire
- Green wire is a C pin as a public wire
The color of the wire can be customized according to your requirements such as white wires or other colors.
Buttons for screw terminals can only be linked using wires.
The device is normally connected to grounding wire, hot wire and neutral wires.
Connect the green pin C public wire with the power source’s positive pole. Join red LED light wire and positive pole of controlled appliance together, then connect with the blue NO line.
Connect negative pole of controlled appliance with power source’s positive pole of black LED light wire. Press the button, the LED light starts to work, and the load is energized.
Press the button again, the LED light is turned off, and load is power off. As the following picture shows.
Above is the most conventional push button switch wiring, the other is the wiring of lighting form, operation is as follows.
Connect green C pin public wire with power source’s positive pole.
Join red LED lamp wire and the positive pole of controlled electric appliance together, then connect with yellow NC wire.
Join the negative pole of the controlled electric appliance and black LED line together, then connect with the positive pole of the power source.
Press push button, the LED light is turn off, and the load is powered off.
How to wire a push button switch of double color?
Do you know how to wire a double switch?
The wiring of the two-color button is a bit similar to the double switch.
The push button switch can also be divided into a single pole and bipolar, the main difference is the number of controlled lines: one unipolar and two bipolar.
The operation of 19 mm red-green two-color light is as follows.
Connect the green lamp’s pin with the positive pole of the controlled electric appliance.
Connect negative pole of the controlled electric appliance with blue NO pin.
Connect yellow wire NC pin with red lamp pin. Green C pin and LED lamp public pin together connect with power source.
Green lamp turn on, the load is energized, while the red lamp turn on, the load is power off.
Can be used with push button switch wiring harness
In some places where the installation space is small, the button switch can be used to install the button more quickly, and the button product can be replaced more conveniently in the future use or the button switch is accidentally damaged.
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Welcome to Yueqing Yulin electronic Co., Ltd., your reliable source of push-button switches and signal lights. We are experts in push button switch wiring and our products are widely used in various industries, such as machinery, electric power, and automation.
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