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. 175-9463
BrandRS PRO
£11.34
1 Pack of 1
Pack(s)
Momentary Single Pole Single Throw (SPST) Panel Mount Yes 16 (Dia.)mm 16mm 2 A Blue - IP67 Translucent 36V dc Round Wire Lead
RS Stock No. 175-8265
BrandRS PRO
£6.874
Each (In a Tray of 20)
Units
Momentary Single Pole Double Throw (SPDT) Panel Mount Yes 22.2 (Dia.)mm 22.2mm 3 A, 5 A - - IP65 Silver 250V ac Flat Solder
RS Stock No. 175-9531
BrandRS PRO
£9.83
1 Pack of 1
Pack(s)
Momentary Single Pole Single Throw (SPST) Panel Mount Yes 16 (Dia.)mm 16mm 2 A White - IP67 Translucent 36V dc Round Solder
RS Stock No. 175-8875
BrandRS PRO
£8.33
1 Pack of 1
Pack(s)
- Single Pole Double Throw (SPDT) Panel Mount Yes 22.2 (Dia.)mm 22.2mm 3 A, 5 A - - IP65 Transparent 250V ac Flat Solder
RS Stock No. 175-8522
BrandRS PRO
£7.397
Each (In a Tray of 20)
Units
Momentary Single Pole Single Throw (SPST) Panel Mount Yes 16 (Dia.)mm 16mm 2 A Yellow - IP67 Translucent 36V dc Round Solder
RS Stock No. 175-8726
BrandRS PRO
£10.305
Each (In a Tray of 20)
Units
Momentary Single Pole Single Throw (SPST) Panel Mount Yes 16 (Dia.)mm 16mm 2 A Blue - IP67 Translucent 36V dc Round Wire Lead
RS Stock No. 175-9544
BrandRS PRO
£10.01
Each
Units
Momentary Single Pole Single Throw (SPST) Panel Mount Yes 16 (Dia.)mm 16mm 2 A White - IP67 - 36V dc Round Solder
RS Stock No. 175-8474
BrandRS PRO
£9.384
Each (In a Tray of 20)
Units
Momentary Single Pole Single Throw (SPST) Panel Mount Yes 16 (Dia.)mm 16mm 2 A Green - IP67 Translucent 36V dc Round Wire Lead
RS Stock No. 175-9145
BrandRS PRO
£10.065
Each (In a Tray of 20)
Units
Momentary Single Pole Single Throw (SPST) Panel Mount Yes 16 (Dia.)mm 16mm 2 A Blue, White - IP67 - 36V dc Round Solder
RS Stock No. 175-8264
BrandRS PRO
£7.967
Each (In a Tray of 20)
Units
Momentary Single Pole Double Throw (SPDT) Panel Mount Yes 22.2 (Dia.)mm 22.2mm 3 A, 5 A White - IP65 Silver 250V ac Flat Solder
RS Stock No. 175-8874
BrandRS PRO
£2.63
1 Pack of 1
Pack(s)
- Single Pole Double Throw (SPDT) Panel Mount Yes 22.2 (Dia.)mm 22.2mm 3 A, 5 A Red - IP65 Transparent 250V ac Flat Solder
RS Stock No. 175-8725
BrandRS PRO
£17.79
1 Pack of 1
Pack(s)
Momentary Single Pole Single Throw (SPST) Panel Mount No 22.2 (Dia.)mm 22.2mm 16 A, 26 A - - IP67 - 250 / 125V ac Flat Quick Connect
RS Stock No. 175-9543
BrandRS PRO
£5.38
1 Pack of 1
Pack(s)
- Single Pole Single Throw (SPST) - - - - 125 mA @ 125 V ac, 200 mA @ 50 V dc, 400 mA @ 32 V ac - - IP68 - 125 V ac @ 125 mA, 32 V ac @ 400 mA, 50 V dc @ 200 mA - PCB
RS Stock No. 175-9144
BrandRS PRO
£8.939
Each (In a Tray of 20)
Units
Momentary Single Pole Single Throw (SPST) Panel Mount Yes 16 (Dia.)mm 16mm 2 A Green - IP67 Translucent 36V dc Flat Solder
RS Stock No. 175-8263
BrandRS PRO
£5.908
Each (In a Tray of 20)
Units
Momentary Single Pole Double Throw (SPDT) Panel Mount Yes 22.2 (Dia.)mm 22.2mm 3 A, 5 A Red - IP65 Red 250V ac Flat Solder
RS Stock No. 175-8724
BrandRS PRO
£10.065
Each (In a Tray of 20)
Units
Momentary Single Pole Single Throw (SPST) Panel Mount Yes 16 (Dia.)mm 16mm 2 A Blue - IP67 Translucent 36V dc Round Wire Lead
RS Stock No. 175-8262
BrandRS PRO
£7.277
Each (In a Tray of 20)
Units
Momentary Single Pole Double Throw (SPDT) Panel Mount Yes 22.2 (Dia.)mm 22.2mm 3 A, 5 A Red - IP65 Silver 250V ac Flat Solder
RS Stock No. 690-3255
Mfr. Part No.R16FFNSTAG
BrandEOZ
£6.76
Each
Units
Momentary Single Pole Single Throw (SPST) Panel Mount No 16.2 (Dia.)mm 16.2mm 2 A @ 48 V dc - - IP65 Silver 48 V dc, 250 V ac Round Screw
RS Stock No. 706-4060
Mfr. Part No.KFB3AEA2GBB
BrandZF
£4.75
Each
Units
Latching DPST Panel Mount Yes 20.2 (Dia.)mm 20.2mm 20 A @ 14 V dc Green - IP65 Green 125V ac Round Tab
RS Stock No. 103-6280
Mfr. Part No.1213C BLACK
BrandAPEM
£3.71
Each
Units
Momentary 1NO Panel Mount No 12.2 (Dia.)mm 12.2mm 2 A @ 24 V dc - - - Black 250V ac Round Solder, Tab