Push button switches also known as push switches are one of the most common types of electrical switches used in the market today. These versatile components are used in a wide range of applications, from everyday household appliances to industrial machinery.

With their straightforward operation and robust construction, push buttons are a popular choice for controlling electrical devices, activating alarms, and initiating various control sequences.

Here at RS, we offer a comprehensive selection of high-quality illuminated and non-illuminated push buttons in a range of shapes, sizes, and colours. If you are designing a new project or simply maintaining an existing installation we are confident we have the right push button switch for you.

How do Push Button Switches Work?

A push button has two main components, the button itself and the internal switching mechanism. When pushing the button, it forces the plunger to move, which in turn engages or disengages the internal contacts, thereby completing or breaking the electrical circuit.

Types of Push Button Switches

Push button switches come in a variety of types, each with unique characteristics and features. Some of the most common are

Momentary Push Button Switch

Momentary push buttons also known as spring return buttons are a type of switch that requires continuous compression. They will turn on when the user applies a force (usually your finger) to the switch button and will only stay on while the switch button is compressed. Once the force is removed momentary switches will spring back and return to their original off position.

Momentary switches will ALWAYS have brackets around the momentary position to help with identification. For example (On)-Off-(On), On-(Off)

Latching Push Button Switch

Latching push buttons, also known as maintained or stay-put push buttons are a type of switch that does not require continuous compression. They will turn on when the user applies a force (usually your finger) to the switch button and will remain in the on position. It is only until the user compresses the switch button again that the switch will un-latch and return to its original off position.

Illuminated Push Button Switch

Illuminated push buttons incorporate a light source, typically an LED, that lights up when the button is pressed. illuminated switches are often used in low-light or dark environments and are ideal for applications where a visual indication of the switch's status is required.