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. 745-2455
BrandRS PRO
£2.16
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. 820-7568
BrandRS PRO
£2.88
Each
Units
Momentary Single Pole Single Throw (SPST) PCB No 13.6 (Dia.)mm 13.6mm 400 mA @ 32 V ac - - IP67 Red 30V dc Square Pc Pin
RS Stock No. 745-2461
BrandRS PRO
£2.28
Each
Units
Momentary - Panel Mount Yes 16 (Dia.)mm 16mm 5 A @ 250 V ac - - IP65 - 250V ac Square Tab
RS Stock No. 745-2556
BrandRS PRO
£5.34
Each
Units
Latching Single Pole Double Throw (SPDT) Panel Mount Yes 16 (Dia.)mm 16mm 5 A @ 250 V ac - - IP40 - 250V ac Square Solder
RS Stock No. 745-2489
BrandRS PRO
£7.73
Each
Units
Momentary - Panel Mount Yes 16 (Dia.)mm 16mm 5 A @ 250 V ac - - IP65 - 250V ac Square Tab
RS Stock No. 891-9814
BrandRS PRO
£2.24
Each
Units
Momentary Single Pole Single Throw (SPST) Square Threaded No 13.6 (Dia.)mm 13.6mm 200 mA @ 50 V dc, 500 mA @ 32 V ac - - IP67 Red 250 V ac @ 200 mA, 50 V dc @ 200 mA Square Solder Lug
RS Stock No. 820-7580
BrandRS PRO
£2.79
Each
Units
Momentary Single Pole Single Throw (SPST) PCB No 13.6 (Dia.)mm 13.6mm 400 mA @ 32 V ac - - IP67 Blue 30V dc Square Solder Lug
RS Stock No. 745-2473
BrandRS PRO
£6.68
Each
Units
Momentary - Panel Mount Yes 16 (Dia.)mm 16mm 5 A @ 250 V ac - - IP65 - 250V ac Square Tab
RS Stock No. 745-2458
BrandRS PRO
£6.47
Each
Units
Latching - Panel Mount Yes 16 (Dia.)mm 16mm 5 A @ 250 V ac - - IP65 - 250V ac Square Tab
RS Stock No. 820-7559
BrandRS PRO
£2.83
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 Square Pc Pin
RS Stock No. 820-7571
BrandRS PRO
£2.83
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 Square Solder Lug
RS Stock No. 891-9826
BrandRS PRO
£5.67
Each
Units
Momentary Single Pole Single Throw (SPST) Square Threaded No 13.6 (Dia.)mm 13.6mm 200 mA @ 50 V dc, 500 mA @ 32 V ac - - IP67 White 250 V ac @ 200 mA, 50 V dc @ 200 mA Square Solder Lug
RS Stock No. 820-7583
BrandRS PRO
£2.83
Each
Units
Momentary 1NC PCB No 13.6 (Dia.)mm 13.6mm 400 mA @ 32 V ac - - IP67 Black 30V dc Square Solder Lug
RS Stock No. 820-7561
BrandRS PRO
£2.83
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 Square Pc Pin
RS Stock No. 820-7565
BrandRS PRO
£1.91
Each
Units
Momentary Single Pole Single Throw (SPST) PCB No 13.6 (Dia.)mm 13.6mm 400 mA @ 32 V ac - - IP67 Blue 30V dc Square Pc Pin
RS Stock No. 820-7574
BrandRS PRO
£2.83
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 Square Solder Lug
RS Stock No. 820-7577
BrandRS PRO
£2.83
Each
Units
Momentary Single Pole Single Throw (SPST) PCB No 13.6 (Dia.)mm 13.6mm 400 mA @ 32 V ac - - IP67 Red 30V dc Square Solder Lug
RS Stock No. 891-9820
BrandRS PRO
£5.67
Each
Units
Momentary Single Pole Single Throw (SPST) Square Threaded No 13.6 (Dia.)mm 13.6mm 200 mA @ 50 V dc, 500 mA @ 32 V ac - - IP67 Green 250 V ac @ 200 mA, 50 V dc @ 200 mA Square Solder Lug
RS Stock No. 891-9823
BrandRS PRO
£5.67
Each
Units
Momentary Single Pole Single Throw (SPST) Square Threaded No 13.6 (Dia.)mm 13.6mm 200 mA @ 50 V dc, 500 mA @ 32 V ac - - IP67 Blue 250 V ac @ 200 mA, 50 V dc @ 200 mA Square Solder Lug