Toggle Switches

Toggle switches are among the most basic and most common of all electronic components, the switch moves contacts that either provide a path for current to flow through or moves those contacts in such a way that the path is cut. The toggle switches most people will be familiar with are light switches.

How Does a Toggle Switch Function?
Toggle switches may vary a bit in function from one to the next depending upon their configurations. However, the basics are the same.
When the actuator (the toggle itself) is moved, the armature in the switch moves the contact into position either energizing the circuit or de-energizing it. Once the switch is moved from one position to the other, it typically stays that way. There are also momentary switches, which energize or de-energize a circuit for as long as they are actuated and then go back to their normal state once the actuator is released. This is accomplished via a spring mechanism that exerts a force on the armature from the inside.

Contact Configuration of a Toggle Switch
  • A single pole single throw (SPST) switch is the simplest and most common type of toggle switch. These switches allow simple on and off operation for a single circuit. Most light switches are SPST switches.
  • Single pole double throw (SPDT) switches can be used to change where a voltage is directed. The double throw means that the switch can be used to energize two different circuits - one at a time - from a single source of energy.
  • Double pole single throw (DPST) switches allow an operation that is very similar to having two SPST switches hooked together in one device. The switch can turn two circuits on and off. These are very convenient when more than one device needs to be controlled with the same switch.
  • Double pole double throw (DPDT) switches allow two different circuits to be served by the same pole. These are used in applications where a circuit may need to have changing voltages applied to connected devices.

There are also switches with the designation CO, such as SPCO (single pole changeover) switches. These have an off position in the middle of the switch and can be used to energize or de-energize two different circuits attached to the device.

...
Read more Read less

Filters

Viewing 21 - 40 of 1781 products
Results per page
Description Price Contact Configuration Switch Operation Contact Current Rating Mounting Type Terminal Type IP Rating Illuminated Panel Cut Out Width Panel Cut Out Height Panel Cut Out Diameter Actuator Length Actuator Material Voltage Rating Contact Resistance
RS Stock No. 464-4749
Mfr. Part No.M-2032
SGD12.59
Each
units
3PDT Latching 3 A@ 30 V dc, 6 A@ 125 V ac PCB Through Hole IP67 - - - - - Chromium Plated Brass - 10mΩ
RS Stock No. 190-0642
Mfr. Part No.5636A
BrandAPEM
SGD7.70
Each
units
Single Pole Single Throw (SPST) Latching 4 A @ 30 V dc Panel Mount Solder - - - - - - Brass - 10mΩ
RS Stock No. 417-5451
Mfr. Part No.3631NF/2
BrandAPEM
SGD30.98
Each
units
Single Pole Single Throw (SPST) Latching 12 A Panel Mount Tab IP67 - - - - 17.5mm Brass 28V dc 10mΩ
RS Stock No. 317-437
Mfr. Part No.AWTN1504
SGD57.92
Each
units
DPDT Latching 20 A @ 250 V ac Panel Mount Tab IP67 - - - - 17.5mm Brass - 10mΩ
RS Stock No. 164-8695
Mfr. Part No.AWTN1504
SGD40.961
Each (In a Box of 100)
units
DPDT Latching 20 A @ 250 V ac Panel Mount Tab IP67 - - - - 17.5mm Brass - 10mΩ
RS Stock No. 394-443
BrandRS PRO
SGD18.33
Each
units
Single Pole Double Throw (SPDT) On-Off-On 3 A @ 120 V ac Panel Mount Solder - - - - - 16mm Brass - 20mΩ
RS Stock No. 222-819
Mfr. Part No.ET115A12-Z
SGD7.82
Each
units
SPST On-Off 10 A@ 250 V ac, 15 A@ 125 V ac Panel Mount Solder - - - - - 17mm - - 20mΩ
RS Stock No. 316-513
Mfr. Part No.J161
BrandAPEM
SGD25.66
Each
units
Single Pole Single Throw (SPST) Latching 10 A @ 125 V ac Panel Mount Screw - - - - - 11mm - - 10mΩ
RS Stock No. 464-4777
Mfr. Part No.M-2042P
SGD18.91
Each
units
4PDT Latching 6 A@ 125 V ac PCB Through Hole - - - - - 12.28mm Brass - 10mΩ
RS Stock No. 881-1390
Mfr. Part No.HM251-73
SGD19.30
Each
units
3PDT On-Off-On 15 A Panel Mount Tab - - - - 12.7mm 17.44mm Brass 250V ac -
RS Stock No. 448-0775
BrandRS PRO
SGD5.756
Each (In a Pack of 5)
units
Double Pole Double Throw (DPDT) On-Off-On 5 A @ 28 V dc Panel Mount Solder - - - - 6.35mm 10.41mm Chromium Plated Brass - 10mΩ
RS Stock No. 199-318
Mfr. Part No.AWTS1504
SGD39.18
Each
units
DPDT (On)-Off-(On) 20 A @ 250 V ac Panel Mount Tab IP67 - - - - 17.5mm Brass - 10mΩ
RS Stock No. 377-9664
Mfr. Part No.5642A
BrandAPEM
SGD14.70
Each
units
Double Pole Single Throw (DPST) On-(On) 4 A @ 30 V dc Panel Mount Solder - - - - - - Brass - 10mΩ
RS Stock No. 842-4757
Mfr. Part No.2TL1-3D
BrandHoneywell
SGD71.79
Each
units
DPDT Latching 6 A @ 230 V ac, 15 A @ 115 V ac, 20 A @ 28 V dc Panel Mount Screw - - - - - 17mm Metal, Plastic - -
RS Stock No. 190-0664
Mfr. Part No.5646A
BrandAPEM
SGD10.62
Each
units
Double Pole Single Throw (DPST) Latching 4 A @ 30 V dc Panel Mount Solder - - - - - - Brass - 10mΩ
RS Stock No. 135-4958
Mfr. Part No.A4TK15W04
SGD78.645
Each (In a Box of 50)
units
4PST Latching 20 A @ 250 V ac Panel Mount Tab IP67 - - - - 17.5mm Brass - 10mΩ
RS Stock No. 266-2206
Mfr. Part No.A4TK15W04
SGD95.50
Each
units
Four Pole Single Throw (4PST) Latching 20 A @ 250 V ac Panel Mount Tab IP67 - - - - 17.5mm Brass - 10mΩ
RS Stock No. 135-4437
Mfr. Part No.AWTS1504
SGD33.758
Each (In a Box of 100)
units
DPDT (On)-Off-(On) 20 A @ 250 V ac Panel Mount Tab IP67 - - - - 17.5mm Brass - 10mΩ
RS Stock No. 394-471
BrandRS PRO
SGD16.10
Each
units
SPDT Latching 3 A @ 120 V ac Panel Mount Solder - - - - - 16mm Brass - 20mΩ
RS Stock No. 448-0753
BrandRS PRO
SGD3.738
Each (In a Pack of 5)
units
Single Pole Double Throw (SPDT) On-Off-On 5 A @ 28 V dc Panel Mount Solder - - - - 6.35mm 10.41mm Brass - 10mΩ