Push Button Switches

A push button is a simple type of switch that controls an action in a machine or some type of process. Most of the time, the buttons are plastic or metal. The shape of the push button may conform to fingers or hands for easy use, or they may simply be flat. You can learn more in our complete guide to push button switches.


Push Button Switch Operation


Push button switches typically have two key parts, an actuator and the contacts. The actuator will go all the way through the switch and into a thin cylinder at the bottom. Inside is a movable contact and spring. When the actuator is pressed, it touches with the stationary contacts, causing the action to take place.


Push buttons are available with normally open or normally closed contacts that change state when the actuator is operated. Momentary switches require the user to keep holding the button for an action to take place, this action is then reset once the button is released. Latching push buttons keep the switch in the set contact state until the button is pressed again.


Push Button Switch Uses


Push button switches are popular in a variety of different applications, including calculators, push button phones, and many home appliances. You can find them in the home, the office, and in industrial applications. They can turn machines on and off, or cause the devices to perform specific actions, as is the case with calculators. In some cases, specifically for commercial and industrial usage, the buttons can connect through mechanical linkage, which means that pushing one button can actually cause another button to release.


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Description Price Switch Operation Contact Configuration Mounting Type Illuminated Panel Cut Out Size Panel Cut Out Diameter Contact Current Rating LED Colour Series IP Rating Actuator Colour Voltage Rating Actuator Shape Terminal Type
RS Stock No. 111-6526
BrandRS PRO
£10.34
Each
Units
Momentary Single Pole Single Throw (SPST) Panel Mount Yes 12 (Dia.)mm 12mm 15 mA Blue - IP65, IP67 Silver 12V ac/dc Round Quick Connect
RS Stock No. 846-6732
BrandRS PRO
£5.46
Each
Units
Latching Double Pole Double Throw (DPDT) PCB No 12.2 (Dia.)mm 12.2mm 2 A, 4 A - - - Silver - Cylinder Pc Pin
RS Stock No. 111-6520
BrandRS PRO
£10.64
Each
Units
Latching Single Pole Single Throw (SPST) Panel Mount Yes 12 (Dia.)mm 12mm 15 mA White - IP40 Silver 12V ac/dc Round Quick Connect
RS Stock No. 111-6518
BrandRS PRO
£8.86
Each
Units
Latching Single Pole Single Throw (SPST) Panel Mount Yes 12 (Dia.)mm 12mm 5 mA Red - IP65, IP67 Silver 220V ac/dc Round Quick Connect
RS Stock No. 745-2455
BrandRS PRO
£7.48
Each
Units
Latching - Panel Mount Yes 16 (Dia.)mm 16mm 5 A @ 250 V ac - - IP65 - 250V ac Square Tab
RS Stock No. 745-2568
BrandRS PRO
£6.01
Each
Units
Momentary Single Pole Double Throw (SPDT) Panel Mount Yes 16 (Dia.)mm 16mm 5 A @ 250 V ac - - - - 250V ac Square Solder
RS Stock No. 111-6519
BrandRS PRO
£10.14
Each
Units
Latching Single Pole Single Throw (SPST) Panel Mount Yes 12 (Dia.)mm 12mm 15 mA Red - IP65, IP67 Silver 24V ac/dc Round Quick Connect
RS Stock No. 820-7552
BrandRS PRO
£3.93
Each
Units
Latching Single Pole Single Throw (SPST) PCB No 13.6 (Dia.)mm 13.6mm 100 mA @ 24 V dc - - IP67 Green 30V dc Dome Solder Lug
RS Stock No. 111-3781
BrandRS PRO
£14.17
Each
Units
Momentary Double Pole Double Throw (DPDT) Panel Mount Yes 19.2 (Dia.)mm 19.2mm 5 A Blue - IP67 Silver 250V ac Round Solder Pin
RS Stock No. 111-6517
BrandRS PRO
£10.34
Each
Units
Latching Single Pole Single Throw (SPST) Panel Mount Yes 12 (Dia.)mm 12mm 15 mA Red - IP65, IP67 Silver 12V ac/dc Round Quick Connect
RS Stock No. 820-7555
BrandRS PRO
£4.02
Each
Units
Latching Single Pole Single Throw (SPST) PCB Yes 13.6 (Dia.)mm 13.6mm 100 mA @ 24 V dc White - IP67 Blue 30V dc Dome Solder Lug
RS Stock No. 811-8443
BrandRS PRO
£12.41
Each
Units
Momentary Single Pole Double Throw (SPDT) Panel Mount Yes 16 (Dia.)mm 16mm 3 A @ 250 V ac Green - IP65, IP67 Silver 250V ac Flat Solder
RS Stock No. 820-7596
BrandRS PRO
£4.00
Each
Units
Momentary Single Pole Single Throw (SPST) PCB No 13.6 (Dia.)mm 13.6mm 400 mA @ 32 V ac - - IP67 Black 30V dc Dome Pc Pin
RS Stock No. 820-7606
BrandRS PRO
£4.00
Each
Units
Momentary Single Pole Single Throw (SPST) PCB No 13.6 (Dia.)mm 13.6mm 400 mA @ 32 V ac - - IP67 Blue 32/125V ac Dome Pc Pin
RS Stock No. 820-7593
BrandRS PRO
£4.00
Each
Units
Momentary Single Pole Single Throw (SPST) PCB No 13.6 (Dia.)mm 13.6mm 400 mA @ 32 V ac - - IP67 Green 30V dc Dome Pc Pin
RS Stock No. 846-6745
BrandRS PRO
£7.92
Each
Units
Latching 3P CO PCB No 12.2 (Dia.)mm 12.2mm 2 A, 4 A - - - - - Cylinder Pc Pin
RS Stock No. 811-8550
BrandRS PRO
£21.90
Each
Units
Momentary Single Pole Double Throw (SPDT) Panel Mount Yes 22 (Dia.)mm 22mm 5 A @ 250 V ac White - IP65, IP67 Silver 250V ac Flat Quick Connect
RS Stock No. 811-8556
BrandRS PRO
£18.78
Each
Units
Momentary Single Pole Double Throw (SPDT) Panel Mount Yes 22 (Dia.)mm 22mm 5 A @ 250 V ac White - IP65, IP67 Silver 250V ac Flat Quick Connect
RS Stock No. 734-6713
BrandRS PRO
£4.70
Each
Units
Momentary Single Pole Single Throw (SPST) Panel Mount Yes 13.6 (Dia.)mm 13.6mm 400 mA @ 32 V ac Green - IP67 Black 32/50/125V ac Dome Solder
RS Stock No. 111-5801
BrandRS PRO
£14.17
Each
Units
Momentary Double Pole Double Throw (DPDT) Panel Mount Yes 19.2 (Dia.)mm 19.2mm 5 A Blue - IP67 Silver 250V ac Round Solder Pin