How to Use RockerSwitch4Pin: Examples, Pinouts, and Specs

A Rocker Switch is a type of on/off switch that toggles between two positions, functioning as a binary device in electrical circuits. The 4-Pin Rocker Switch is a common variant that features two sets of terminals, which allows it to control a single device or circuit. It is widely used in household appliances, automotive applications, industrial machinery, and electronic devices due to its ease of operation and reliability.

• Power supply switches for electronic devices
• Automotive dashboards
• Control panels for machinery
• Lighting control switches

• Voltage Rating: Typically ranges from 110V to 250V
• Current Rating: Commonly rated for 10A to 20A at 120V or 240V AC
• Contact Configuration: SPST (Single Pole Single Throw) or DPDT (Double Pole Double Throw)
• Operating Temperature: -20°C to +85°C
• Electrical Life: 10,000 to 100,000 cycles
• Mechanical Life: 50,000 to 100,000 cycles

Note: Pins 1 and 2 are electrically connected when the switch is in the "on" position, as are pins 3 and 4.

1. Power Connection: Connect the power supply to pins 1 and 2. These pins are typically the input terminals.
2. Load Connection: Connect the device or load that you want to control with the switch to pins 3 and 4.
3. Mounting: Secure the switch in place, ensuring it is firmly attached to the panel or board to prevent movement during operation.

• Voltage and Current Ratings: Always verify that the switch's ratings are compatible with the circuit's requirements.
• Wiring: Ensure that all connections are secure and that there is no risk of short circuits.
• Switch Orientation: Be mindful of the switch orientation to ensure the "on" and "off" positions are as desired.
• Testing: Test the switch in your circuit before finalizing the installation to ensure proper functionality.

• Switch Does Not Operate: Check if the switch is properly mounted and that the terminals are not loose.
• Intermittent Operation: Inspect for any signs of damage or wear and ensure that the connections are secure.
• Overheating: Ensure that the current and voltage do not exceed the switch's ratings.

• Secure Connections: Tighten any loose terminals and ensure wires are properly connected.
• Replace if Necessary: If the switch is damaged or has reached the end of its mechanical life, replace it with a new one.
• Check Ratings: Always use a switch with appropriate ratings for your application to prevent overheating and potential failure.

Q: Can I use the Rocker Switch with a DC circuit? A: Yes, but ensure that the DC voltage and current do not exceed the switch's AC ratings.

Q: How do I know if the switch is in the "on" position? A: Typically, the side of the switch that is pressed down indicates the "on" position, but this can vary with design.

Q: Is it possible to control two separate circuits with a 4-pin Rocker Switch? A: No, a 4-pin Rocker Switch is designed to control one circuit. For controlling two circuits, a switch with more pins and a different configuration would be required.

The following is an example of how to use a 4-Pin Rocker Switch with an Arduino UNO to control an LED.

// Define the pin connected to the Rocker Switch
const int rockerSwitchPin = 2;
// Define the pin connected to the LED
const int ledPin = 13;

void setup() {
  // Set the LED pin as an output
  pinMode(ledPin, OUTPUT);
  // Set the Rocker Switch pin as an input
  pinMode(rockerSwitchPin, INPUT);
}

void loop() {
  // Read the state of the Rocker Switch
  int switchState = digitalRead(rockerSwitchPin);

  // If the switch is in the "on" position, turn on the LED
  if (switchState == HIGH) {
    digitalWrite(ledPin, HIGH);
  } else {
    // If the switch is in the "off" position, turn off the LED
    digitalWrite(ledPin, LOW);
  }
}

Note: In this example, the Rocker Switch is assumed to be connected to the Arduino such that it closes the circuit between the rockerSwitchPin and ground when in the "on" position.