4 PIN 1221 Momentary ON OFF Toggle Switch 12V 110V 240V 30AMP

Composition And Structure

Momentary ON OFF Toggle Switch
usually consists of the following parts:

1. Housing: The housing of the switch is usually made of plastic, which is used to protect the internal electrical components and provide a good tactile feel and operational performance.

2. Toggle lever: The momentary on off toggle switch lever is the component used to control the switch state (ON or OFF), usually presented as a rod shape that can be switched between two or more positions.

3. Mounting bracket: The mounting bracket is the component used to install the switch, usually made of metal or plastic, and is fixed on the circuit board with screws when necessary.

4. Contacts: The contacts of the switch are the components used to connect or disconnect the circuit, usually made of metal.

5. Spring: The spring is the component used to keep the contacts in the correct position, usually made of spring steel.

6. Terminals: The terminals are the components used to connect wires and circuit boards, usually made of metal such as copper, aluminum, or steel.

7. Conductive pad: The conductive pad is used to ensure good contact between the switch and the circuit board, and provides good conductivity and mechanical strength.

Toggle Switch Pin Type:

Momentary on off toggle switch can have two different pin types: screw pins or plug-in pins. It is necessary to select the correct switch type and electrical characteristics according to the specific application scenario and follow the correct installation and operation procedures to ensure safety and reliability.

1. Screw pin type: This type of switch usually has two or four screw pins for installation on a board. The screw pins usually need to be fixed on the board with nuts to ensure the stability and reliability of the switch. This pin type switch is usually used for more sturdy mounting and higher strength circuit applications.

Advantages:

Sturdy installation: Screw pin type switches need to be fixed on the circuit board with nuts, so their installation is more stable than plug-in pin type switches.

Suitable for high-strength circuits: Since screw pin type switches can withstand higher current and voltage, they are usually suitable for high-strength circuit applications, such as high-power appliances and machinery.

Adjustable: Screw pin type switches can usually be adjusted through nuts to ensure their stability and reliability.

Longer lifespan: Since screw pin type switches are connected more firmly, their lifespan is usually longer than that of plug-in pin type switches.

Disadvantages:

Installation and replacement are more troublesome: Since screw pin type switches require drilling holes on the circuit board, their installation and replacement are more troublesome than plug-in pin type switches.

Not suitable for applications that require frequent replacement: Since installation and replacement are more troublesome, screw pin type switches are not suitable for applications that require frequent replacement.

Plug-in pin type: This type of switch usually has four plug-in pins for insertion into sockets on the circuit board. The pins usually need to be inserted into the sockets and fixed on the circuit board by soldering. This pin type switch is usually used for more convenient installation and lower power circuit applications.

2. The plug-in pin type switch usually has four pins for insertion into sockets on the circuit board. The pins usually need to be inserted into the sockets and fixed on the circuit board by soldering. This type of pin switch is usually used for more convenient installation and lower power circuit applications.

Advantages:

Convenient installation and replacement: The plug-in pin type switch can be easily inserted and removed from sockets on the circuit board without any screw fixation, making installation and replacement very convenient.

No need for drilling: The plug-in pin type switch does not require drilling holes on the circuit board, so it does not damage the circuit board and is easy to install.

Suitable for low-power circuits: The plug-in pin type switch is usually suitable for low-power circuit applications because its pin contact resistance is small.

Disadvantages:

Unstable installation: Since the plug-in pin type switch is not fixed on the circuit board with nuts, its installation is not as stable as the screw pin type switch.

Not suitable for high-strength circuits: The plug-in pins of the plug-in pin type switch have weak connection strength, so it is not suitable for high-strength circuit applications.

Pins are easy to damage: Since the plug-in pins of the plug-in pin type switch are thin, they are easy to be damaged during insertion and removal.

Lifespan

The lifespan of a momentary on off toggle switch depends on several factors such as material, design, electrical load, environmental temperature, and humidity. Generally, the lifespan of a switch is determined through testing and evaluation, which is usually expressed in terms of the number of switch cycles.

The lifespan of a momentary on off toggle switch can be divided into two aspects: mechanical lifespan and electrical lifespan. Mechanical lifespan refers to the lifespan of the switch in terms of mechanical operation. It depends on factors such as material, design, and usage conditions. Generally, high-quality switches can withstand more mechanical operations and have a longer mechanical lifespan.

Electrical lifespan refers to the lifespan of the momentary on off toggle switch in terms of electrical performance. It depends on factors such as electrical load, environmental temperature, and humidity. The rated electrical load of the switch refers to the maximum current and voltage that the switch can withstand. If exceeded, the switch may burn out or become damaged. Moreover, the environmental temperature and humidity can also affect the electrical lifespan of the switch. In high-temperature, high-humidity, or extremely dry environments, the electrical lifespan of the switch may be shortened.

In summary, the lifespan of a Momentary ON OFF Toggle Switch depends on multiple factors. When selecting and using a switch, it is necessary to choose a switch that meets the specific application requirements and follow the correct installation and operation procedures to ensure the normal operation of the switch and extend its lifespan.

Application Fields

This type of Momentary ON OFF Toggle Switch is commonly used in devices that require switching between different power sources to accommodate different voltage and current requirements. It can switch between 12V , 110V , and 240V , with a maximum current of 30 AMP, making it suitable for many different applications.

In automotive electronics, this type of Momentary ON OFF Toggle Switch is often used to control the power supply of devices such as car radios and car DVD players. In these cases, the switch needs to withstand the vibration and other environmental factors of the vehicle, so a durable and reliable switch is required.

In home appliances, this type of Momentary ON OFF Toggle Switch is commonly used to control the power supply of appliances such as air conditioners, washing machines, and ovens. These devices need to switch between different power sources to accommodate different voltage and current standards in different regions. Therefore, the switch needs to have sufficient power and electrical characteristics to ensure that the equipment is not damaged when switching between different power sources.

Mechanical equipment: This switch can be used to control the operation of mechanical equipment, such as robots, automation devices, or other devices that require the control of motors or other electrical components. You can connect the electrical wires of the device that needs to be controlled to the ON or OFF pins.

Electronic equipment: This switch can also be used to control the power supply of electronic devices, such as radios, televisions, battery chargers, etc. You can connect the power supply wires of the device that needs to be controlled to the ON or OFF pins.

Maintenance and repair: Momentary ON OFF Toggle Switch can also be used for maintenance and repair of electrical equipment. When performing electrical repairs, this switch can be used to cut off the power supply of the equipment to ensure safety.

Safety and protection: In some cases, this switch can be used for safety and protection measures. For example, it can be used in safety doors or devices to prevent accidental operation.

Laboratory and research: In laboratories and research, this switch can be used to control the switch of electronic components or devices for various experiments and tests.

In summary, this type of switch is a very useful electronic component that can be used in many different applications, but you need to ensure that you choose the right switch to suit your specific application scenario and follow the correct installation and operation procedures to ensure safety and reliability.

Mode Of Connection

The Following Is The Circuit Diagram Of The Connection:

FIRST, get a battery, a four-pin toggle switch, and two devices.

Connect the positive battery terminal to one of the four pins ON the toggle switch.

Then connect the other side of the device to the negative end of the battery.

connect the positive battery terminal to the other ON foot of the four legs of the toggle switch.

And Then,Connect the other OFF foot of the toggle switch to one side of the other device.

Finally, connect the other side of the device to the negative end of the battery.

When the toggle switch is flipped, the toggle switch is closed, and the two devices light up at the same time and start to work; When the toggle switch is flipped again, the toggle switch is disconnected, and the two devices are extinguished at the same time and stop working.

The 15A 12V IP67 red green three level waterproof marine button switch device can meet the needs of various application scenarios, thereby bringing more convenience to people’s lives and work. 

If you need our products, are interested in our products, want samples, etc., please contact us directly.

The email is as follows: Inquiry@cnylin.com.cn

Click to jump to the official FILN store