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. 354-3342
Mfr. Part No.AB-15AH
HK$36.38
Each
units
Momentary Single Pole Double Throw (SPDT) PCB - - - 0.4 VA @ 28 V ac/dc - - - - - - Through Hole
RS Stock No. 125-1679
Mfr. Part No.UB15SKW035C
HK$78.74
Each
units
Momentary Single Pole Double Throw (SPDT) PCB Yes - - 5 A Red - - Clear 30 V dc, 125 V ac, 250 V ac Square PC Pin
RS Stock No. 181-7212
Mfr. Part No.SB221NC
HK$34.74
Each
units
On-(Off) Single Pole Single Throw (SPST) Central Fixing With Metal Lock Nut No 12.5 (Dia.)mm 12.5mm 3 A - - - Black - Round Screw Lug, Solder Lug
RS Stock No. 125-1680
Mfr. Part No.UB15SKW03N
HK$60.92
Each
units
Momentary Single Pole Double Throw (SPDT) PCB No - - 5 A - - - - 30 V dc, 125 V ac, 250 V ac Square PC Pin
RS Stock No. 181-7214
Mfr. Part No.UB26SKG035C
HK$120.69
Each
units
On-On Double Pole Double Throw (DPDT) Through Hole Yes - - 0.4 VA Red - - - - Square PC Pin
RS Stock No. 125-1690
Mfr. Part No.UB215KKW01N
HK$65.52
Each
units
Momentary Single Pole Double Throw (SPDT) Snap-In No 17.4 x 17.4mm - 5 A - - - - 30 V dc, 125 V ac, 250 V ac Square Solder Lug
RS Stock No. 125-1682
Mfr. Part No.UB25SKG035F
HK$92.87
Each
units
Momentary Double Pole Double Throw (DPDT) PCB Yes - - 100 mA Green - - Clear 28V ac/dc Square PC Pin
RS Stock No. 181-7216
Mfr. Part No.HB215SKG03CE-JB
HK$69.89
Each
units
Off-(On) Single Pole Single Throw (SPST) Through Hole Yes - - 0.4 VA Red/Yellow - - - - Square PC Pin
RS Stock No. 125-1705
Mfr. Part No.M2B25BA5G13
HK$70.35
Each
units
Momentary Double Pole Double Throw (DPDT) PCB No - - 100 mA - - - - 28V ac/dc Round PC Pin
RS Stock No. 125-1692
Mfr. Part No.YB15WCKW01
HK$88.36
Each
units
Momentary Single Pole Double Throw (SPDT) Bushing No 16 (Dia.)mm 16mm 3 A - - IP65 - 30 V dc, 125 V ac, 250 V ac Round Quick Connect, Solder Lug
RS Stock No. 354-3364
Mfr. Part No.AB-15AV
HK$39.88
Each
units
Momentary Single Pole Double Throw (SPDT) PCB - - - 0.4 VA @ 28 V ac/dc - - - - - - Through Hole
RS Stock No. 181-7069
Mfr. Part No.UB216SKW035F
HK$105.069
Each (In a Bag of 10)
units
On-On Single Pole Double Throw (SPDT) Through Hole Yes - - 5 A Green - - - - Square Solder Lug
RS Stock No. 181-7255
Mfr. Part No.MB2521S4W01
HK$41.38
Each
units
On-(On) Double Pole Double Throw (DPDT) Central Fixing With Metal Lock Nut No 6.5 (Dia.)mm 6.5mm 3 A - - - - 125V ac Cap Solder Lug
New
RS Stock No. 195-9460
Mfr. Part No.YB15WRKG01
HK$552.53
1 Bag of 5
Bag(s)
On-(On) SPDT Panel Mount - 16mm - - - - IP65 - - - -
RS Stock No. 125-1706
Mfr. Part No.MB2011SB1W01-DA
HK$59.04
Each
units
Momentary Single Pole Double Throw (SPDT) Bushing No 12.5 (Dia.)mm 12.5mm 3 A - - - Black 125 V ac, 250 V ac Round Solder Lug
RS Stock No. 428-8383
Mfr. Part No.HB-15SKS2-4YFYS
HK$89.69
Each
units
Momentary Single Pole Double Throw (SPDT) Panel Mount Yes 8 (Dia.)mm 8mm 100 mA @ 30 V ac/dc Yellow - - Yellow - - Solder
New
RS Stock No. 195-9412
Mfr. Part No.UB25NKW01N
HK$72.07
Each
units
On-(On) DPDT Through Hole - - - - - - - - 30 V, 125 V - -
RS Stock No. 125-1683
Mfr. Part No.UB16KKW01N
HK$66.67
Each
units
Latching Single Pole Double Throw (SPDT) Snap-In No 16.2 x 16.2mm - 5 A - - - - 30 V dc, 125 V ac, 250 V ac Square Solder Lug
RS Stock No. 354-3500
Mfr. Part No.GB-15AV
HK$37.39
Each
units
Momentary Single Pole Double Throw (SPDT) PCB - - - 0.4 VA @ 28 V ac/dc - - - - - - Through Hole
RS Stock No. 181-7070
Mfr. Part No.UB26SKG035C
HK$548.51
1 Bag of 5
Bag(s)
On-On Double Pole Double Throw (DPDT) Through Hole Yes - - 0.4 VA Red - - - - Square PC Pin