When it comes to electrical and electronic devices, switches are essential components that control the flow of electricity. Among the many types of switches available, the rocker switch is one of the most widely used thanks to its simple design, durability, and ease of operation. From household appliances to industrial machines, rocker switches provide reliable control with just a press of a button.
In this blog, we’ll explore what a rocker switch is, how it works, and the different types of rocker switches you might come across.
What is a Rocker Switch?
A rocker switch is an electrical switch that rocks back and forth when pressed, rather than moving up and down like a traditional toggle switch. Pressing one side of the switch connects (ON) the circuit, while pressing the other side disconnects (OFF) it. Many rocker switches also include a built-in light indicator to show when the switch is ON, making them even more convenient.
Rocker switches are commonly used in:
- Home appliances (fans, lamps, extension boards)
- Power strips and adapters
- Audio and video equipment
- Industrial machines
- Automotive applications (cars, bikes, boats, etc.)
Types of Rocker Switches
1. SPST Rocker Switch (Single Pole, Single Throw)
- The simplest type of rocker switch.
- Has two pins and works as an ON/OFF control.
- Commonly found in small appliances and extension boards.
Example: Two Pin Two Way On/Off Rocker Switch (like the red color rocker switch from Vincentvolt).
SPDT Rocker Switch (Single Pole, Double Throw)
- Has three terminals.
- Can switch one input between two outputs.
- Useful when you need to switch between two circuits with one switch.
3. DPST Rocker Switch (Double Pole, Single Throw)
- Works like two SPST switches controlled by a single rocker.
- Controls two separate circuits at the same time.
- Often used in devices where multiple connections must be turned ON/OFF together.
4. DPDT Rocker Switch (Double Pole, Double Throw)
- Works like two SPDT switches combined.
- Can control two circuits and switch each between two outputs.
- Commonly used in more complex appliances and industrial equipment.
5. Momentary Rocker Switch
- Only stays in position while being pressed.
- Returns to its original state when released.
- Common in devices like doorbells, reset buttons, or control panels.
Advantages of Rocker Switches
- Simple to Use: Just press ON or OFF – no complex mechanism.
- Durable: Designed for frequent switching.
- Compact Design: Fits easily into small devices.
- Visual Feedback: Some models include a colored actuator or light indicator.
- Versatile: Suitable for home, automotive, DIY, and industrial use.
Final Thoughts
The rocker switch is one of the most practical and versatile components in the electrical world. From simple SPST switches to advanced DPDT models, there’s a rocker switch to suit every need. Whether you’re building a DIY project, repairing an appliance, or designing an industrial system, rocker switches ensure safety, control, and reliability.
👉 At Vincentvolt, we offer a wide range of rocker switches including SPST, SPDT, and illuminated types, perfect for your projects and repairs. Browse our collection and find the right switch for your needs.
