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. 219-0543
Mfr. Part No.18-137.035
BrandEAO
HK$109.36
Each
units
Momentary Single Pole Single Throw (SPST) Panel Mount Yes 8 (Dia.)mm 8mm 100 mA @ 42 V - - IP40 Black - Square Solder
RS Stock No. 528-7808
Mfr. Part No.SP6018C1F0000
BrandMolveno
HK$43.13
Each
units
Latching 2-pole on-off switch Panel Mount Yes 25 (Dia.)mm 25mm 10 A @ 400 V ac - - - Blue - Plunger Tab
RS Stock No. 179-0899
Mfr. Part No.AV031003C910
BrandAPEM
HK$378.18
Each
units
Momentary Single Pole Single Throw (SPST) Panel Mount No 22.2 (Dia.)mm 22.2mm 2 A @ 48 V dc - - - Silver 24/48V dc Round Screw
RS Stock No. 373-1634
Mfr. Part No.IBR3SAD3
BrandAPEM
HK$61.36
Each
units
Momentary Single Pole Single Throw (SPST) Panel Mount No 13.6 (Dia.)mm 13.6mm 400 mA @ 32 V ac - - IP67 Green 32V ac Dome Solder
RS Stock No. 225-583
Mfr. Part No.AV0611A240K
BrandAPEM
HK$254.29
Each
units
Latching Single Pole Single Throw (SPST) - No 19.2 (Dia.)mm 16.2mm 1 A @ 24 V dc - - IP65 Silver 48V dc Round Solder
RS Stock No. 614-6332
Mfr. Part No.9633NCDB
BrandAPEM
HK$39.67
Each
units
Momentary Single Pole Single Throw (SPST) Panel Mount No 6.5 (Dia.)mm 6.5mm 100 mA @ 30 V dc - - - Black 30V dc Cylinder Solder
RS Stock No. 708-2936
Mfr. Part No.MP0027
BrandBulgin
HK$274.62
Each
units
Momentary Single Pole Single Throw (SPST) Panel Mount No 25.8 (Dia.)mm 25.8mm 5 A @ 250 V ac - - IP66 Silver 250V ac Round Solder
RS Stock No. 820-7568
BrandRS PRO
HK$33.94
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. 690-6973
Mfr. Part No.19-431.035
BrandEAO
HK$81.97
Each
units
Momentary Single Pole Single Throw (SPST) Panel Mount Yes 8 (Dia.)mm 8mm 100 mA @ 42 V - - IP40 Black - - Solder
RS Stock No. 179-0912
Mfr. Part No.AV091003C910
BrandAPEM
HK$281.29
Each
units
Momentary Single Pole Single Throw (SPST) Panel Mount No 19.2mm 19.2mm 2 A @ 48 V dc - - - Silver 24/48V dc Round Screw
RS Stock No. 891-9820
BrandRS PRO
HK$68.38
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 50 V dc @ 200 mA, 250 V ac @ 200 mA Square Solder Lug
RS Stock No. 861-0311
Mfr. Part No.C7053AFNAB
HK$75.18
Each
units
Latching Double Pole Double Throw (DPDT) Panel Mount Yes 25 (Dia.)mm 25mm 16 A Green - IP65 Silver 250V ac Plunger Tab
RS Stock No. 762-5889
Mfr. Part No.TR2-21-L2
HK$7.60
Each
units
Momentary Single Pole Single Throw (SPST) PCB Yes - - 10 mA@ 12 V dc Red - - - - - PC Terminal
RS Stock No. 223-244
Mfr. Part No.LP1S-26S-889-Z
HK$77.60
Each
units
Momentary Double Pole Double Throw (DPDT) PCB Yes - - 3 A @ 125/250 V ac, 3 A @ 30 V dc Yellow - - - - - Through Hole
RS Stock No. 173-7942
Mfr. Part No.1241.6833.1122000
BrandSchurter
HK$296.604
Each (In a Box of 10)
units
Latching Double Pole Double Throw (DPDT) Panel Mount Yes 22 (Dia.)mm 22mm 12 A @ 250 V ac Green - IP64 (Front); IP00 (Rear) Natural 250V ac Round Tab
RS Stock No. 777-7536
Mfr. Part No.1241.6611.1120000
BrandSchurter
HK$125.43
Each
units
Momentary Single Pole Double Throw (SPDT) Panel Mount No 21.20 (Dia.)mm 21.2mm 3 A @ 250 V ac - MSM 16 ST IP67 Silver 250V ac Flat Solder Tag
RS Stock No. 354-3342
Mfr. Part No.AB-15AH
HK$39.30
Each
units
Momentary Single Pole Double Throw (SPDT) PCB - - - 0.4 VA @ 28 V ac/dc - - - - - - Through Hole
RS Stock No. 248-5245
Mfr. Part No.31-423.036
BrandEAO
HK$181.08
Each
units
Momentary Single Pole Double Throw (SPDT) PCB Yes 16 (Dia.)mm 16mm 100 mA @ 42 V - - IP40 - - Rectangular Through Hole
RS Stock No. 861-0374
Mfr. Part No.MP0045/1E1GN012
BrandBulgin
HK$206.56
Each
units
Latching Double Pole Double Throw (DPDT) Panel Mount Yes 16.2 (Dia.)mm 16.2mm 3 A Green - - Silver 50V Plunger Solder
RS Stock No. 236-9389
Mfr. Part No.IPR3SAD-3
BrandAPEM
HK$122.00
Each
units
Momentary Single Pole Single Throw (SPST) Panel Mount No 13.6 (Dia.)mm 13.6mm 5 A @ 28 V dc - - IP67 Green 28V dc Dome Solder