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.
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. 173-9352
Mfr. Part No.TH513108601
TWD313.30
Each (In a Bag of 100)
units
Latching 1NO/1NC - - 21 x 21mm - - - - IP40 - 250V ac - Solder
RS Stock No. 119-1135
Mfr. Part No.TH513108601
TWD430.00
Each
units
Latching - - No 21 x 21mm - - - - IP40 - - Square Solder
RS Stock No. 340-8722
Mfr. Part No.A165EM02
BrandOmron
TWD1,766.00
Each
units
Latching Double Pole Double Throw (DPDT) - No - - 5 A @ 125 V ac - - - Red - Mushroom Tab
RS Stock No. 248-8907
Mfr. Part No.59-512
BrandITW
TWD228.00
Each
units
Momentary Single Pole Single Throw (SPST) Panel Mount - 13.6 (Dia.)mm 13.6mm 400 mA @ 32 V ac - - - Red - Dome Solder
RS Stock No. 913-8873
Mfr. Part No.MPBS-22H01-F14
TWD107.00
Each (In a Bag of 5)
units
Momentary Double Pole Double Throw (DPDT) PCB No - - 1 A - - - Silver - Rectangular Pc Pin
RS Stock No. 762-5782
Mfr. Part No.SP210R-Z
TWD230.00
Each
units
Momentary Double Pole Double Throw (DPDT) Panel Mount - 12.5mm 12.5mm 6 A @ 250 V ac, 10 A @ 125 V ac - - - Black - - Solder Tag
RS Stock No. 198-589
Mfr. Part No.A3CT7021
BrandOmron
TWD521.00
Each
units
Latching Single Pole Single Throw (SPST) Panel Mount Yes 12 (Dia.)mm 12mm 500 mA @ 250 V ac - - IP40 - 250V ac Round Solder
RS Stock No. 745-2442
BrandRS PRO
TWD415.00
Each
units
Latching Double Pole Double Throw (DPDT) Panel Mount Yes 16 (Dia.)mm 16mm 5 A @ 250 V ac - - IP65 Red 250V ac Round Tab
RS Stock No. 198-573
Mfr. Part No.A3CT7011
BrandOmron
TWD531.00
Each
units
Momentary Single Pole Single Throw (SPST) Panel Mount Yes 12 (Dia.)mm 12mm 500 mA @ 250 V ac - - IP40 - 250V ac Round Solder
RS Stock No. 762-5858
Mfr. Part No.TMG1-01
TWD29.00
Each
units
Momentary Single Pole Single Throw (SPST) PCB - - - 50 mA @ 48 V dc - - - - - - PC Terminal
RS Stock No. 426-461
Mfr. Part No.1241.6631.1180000
BrandSchurter
TWD457.00
Each
units
Momentary Single Pole Double Throw (SPDT) Through Hole No 22 (Dia.)mm 22mm 5 A @ 250 V ac - - IP67 Silver 250V ac Round Pin
RS Stock No. 426-540
Mfr. Part No.1241.6821.1120000
BrandSchurter
TWD538.00
Each
units
Latching Double Pole Double Throw (DPDT) Panel Mount No 19 (Dia.)mm 19mm 12 A @ 250 V ac - - IP64 Natural 125/250V ac Round Tab
RS Stock No. 762-5552
Mfr. Part No.LP2S-16S-559-Z
TWD213.00
Each
units
Momentary Single Pole Double Throw (SPDT) Panel Mount Yes 16.2 x 16.2mm - 3 A @ 125/250 V ac, 3 A @ 30 V dc Green - - Green - - Solder Tag
RS Stock No. 335-659
Mfr. Part No.AML21CBA2AC
BrandHoneywell
TWD902.00
Each
units
Momentary Double Pole Double Throw (DPDT) Panel Mount - 19 x 19mm - 2 A @ 250 V ac - - - - - Rectangular Solder, Tab
RS Stock No. 226-120
Mfr. Part No.AV9SLD9083002
BrandAPEM
TWD825.00
Each
units
Momentary Single Pole Single Throw (SPST) - Yes 19.2 (Dia.)mm 19.2mm 50 mA @ 24 V dc Green - - Silver - Flat Screw
RS Stock No. 103-5726
Mfr. Part No.9633NCD
BrandAPEM
TWD116.00
Each
units
Momentary 1-pole on-off switch Panel Mount No 6.5 (Dia.)mm 6.35mm 100 mA @ 30 V dc - - - - 250V ac Cylinder Solder
RS Stock No. 664-367
Mfr. Part No.TP32W0080
BrandAPEM
TWD142.00
Each
units
Momentary Single Pole Single Throw (SPST) PCB No - - 400 mA @ 20 V - - - - 20V Cylinder Through Hole
RS Stock No. 762-5823
Mfr. Part No.TM3-21-L005
TWD33.00
Each
units
Momentary Single Pole Single Throw (SPST) PCB Yes - - 50 mA@ 48 V dc Green - - - - - PC Terminal
RS Stock No. 173-8580
Mfr. Part No.76-9420/439088R
BrandITW
TWD546.00
Each (In a Box of 30)
units
- SPDT-NO/NC Panel Mount No 20 (Dia.)mm 20mm 10.1 A @ 250 V ac - - IP67 Red 125/250V ac Plunger Solder, Tab
RS Stock No. 320-635
Mfr. Part No.T0920SOAAD
TWD98.00
Each
units
Momentary Double Pole Double Throw (DPDT) Panel Mount - 7.1 (Dia.)mm 7.1mm 500 mA @ 250 V ac - - - - 250V ac Round Solder Tab