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 1 - 20 of 87 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. 819-9451
Mfr. Part No.FT 1 H
MYR29.07
Each
units
Single Pole Double Throw (SPDT) (On)-Off-On 400 mA @ 20 V PCB Pc Pin - - - - - 3.8mm PES - <100mΩ
RS Stock No. 134-1093
Mfr. Part No.MTE106D
MYR32.75
Each
units
Single Pole Double Throw (SPDT) Latching 4 A @ 30 V dc Panel Mount Solder - - - - - 10.5mm - - 10mΩ
RS Stock No. 819-9338
Mfr. Part No.MTG 306 D
MYR62.51
Each
units
Three Pole Double Throw (3PDT) Latching 4 A @ 30 V dc Panel Mount Solder Tag - - - - 12.5mm 11.5mm - - <20mΩ
RS Stock No. 819-9420
Mfr. Part No.TST 2 N
MYR18.43
Each
units
Double Pole Double Throw (DPDT) Latching 400 mA @ 20 V PCB Pc Pin IP67 - - - - 6.1mm Chromium Plated Brass - <20mΩ
RS Stock No. 819-9215
Mfr. Part No.STM 106 G-RA
MYR47.79
Each
units
Single Pole Double Throw (SPDT) (On)-Off-(On) 4 A @ 30 V dc PCB Pc Pin - - - - - 6.8mm - - <10mΩ
RS Stock No. 134-1122
Mfr. Part No.MTE206P
MYR43.14
Each
units
Double Pole Double Throw (DPDT) On-Off-On 4 A @ 30 V dc Panel Mount Solder - - - - - 10.5mm - - 10mΩ
RS Stock No. 819-9246
Mfr. Part No.MTA 206 PA
MYR43.92
Each
units
Double Pole Double Throw (DPDT) On-On-On 4 A @ 30 V dc Panel Mount Solder Tag - - - - 6.2mm 10.5mm - - <10mΩ
RS Stock No. 819-9436
Mfr. Part No.TST 2 N-RA
MYR20.18
Each
units
Double Pole Double Throw (DPDT) Latching 400 mA @ 20 V PCB Pc Pin IP67 - - - - 6.1mm Chromium Plated Brass - <20mΩ
RS Stock No. 819-9287
Mfr. Part No.MTE 106 G
MYR43.67
Each
units
Single Pole Double Throw (SPDT) (On)-Off-(On) 4 A @ 30 V dc Panel Mount Solder Tag IP67 - 6.1mm 5.5mm - 10.5mm - - <10mΩ
RS Stock No. 819-9385
Mfr. Part No.ATE 1 F-RA
MYR25.14
Each
units
Single Pole Double Throw (SPDT) (On)-On 50 mA @ 48 V dc PCB Pc Pin - - - - - 6mm Nickel Plated Brass - <50mΩ
RS Stock No. 819-9439
Mfr. Part No.TST 2 R
MYR20.95
Each
units
Double Pole Double Throw (DPDT) (On)-On 400 mA @ 20 V PCB Pc Pin IP67 - - - - 6.1mm Chromium Plated Brass - <20mΩ
RS Stock No. 819-9325
Mfr. Part No.MTG 206 PA
MYR54.20
Each
units
Double Pole Double Throw (DPDT) On-On-On 4 A @ 30 V dc Panel Mount Solder Tag - - - - 12.5mm 11.5mm - - <20mΩ
RS Stock No. 199-0948
Mfr. Part No.MTA206N
MYR29.26
Each
units
Double Pole Double Throw (DPDT) Latching 4 A @ 30 V dc Panel Mount Solder - - - - - 10.5mm - - 10mΩ
RS Stock No. 819-9234
Mfr. Part No.MTA 106 G
MYR29.77
Each
units
Single Pole Double Throw (SPDT) (On)-Off-(On) 4 A @ 30 V dc Panel Mount Solder Tag - - - - 6.2mm 10.5mm - - <10mΩ
RS Stock No. 199-0954
Mfr. Part No.MTA206P
MYR45.32
Each
units
Double Pole Double Throw (DPDT) On-Off-On 4 A @ 30 V dc Panel Mount Solder - - - - - 10.5mm - - 10mΩ
RS Stock No. 819-9240
Mfr. Part No.MTA 306 H
MYR54.27
Each
units
Three Pole Double Throw (3PDT) (On)-Off-On 4 A @ 30 V dc Panel Mount Solder Tag - - - - 6.2mm 10.5mm - - <10mΩ
RS Stock No. 819-9256
Mfr. Part No.MTA 406 S
MYR66.07
Each
units
Four Pole Double Throw (4PDT) (On)-Off-(On) 4 A @ 30 V dc Panel Mount Solder Tag - - - - 6.2mm 10.5mm - - <10mΩ
RS Stock No. 819-9454
Mfr. Part No.FT 2 D
MYR32.71
Each
units
Double Pole Double Throw (DPDT) Latching 400 mA @ 20 V PCB Pc Pin - - - - - 3.8mm PES - <100mΩ
RS Stock No. 819-9335
Mfr. Part No.MTG 406 P
MYR82.88
Each
units
Four Pole Double Throw (4PDT) On-Off-On 4 A @ 30 V dc Panel Mount Solder Tag - - - - 12.5mm 11.5mm - - <20mΩ
RS Stock No. 711-8375
Mfr. Part No.TST 1D-RA
MYR16.22
Each
units
Single Pole Double Throw (SPDT) Latching 400 mA @ 20 V PCB Through Hole - - - - - 6.1mm Chromium Plated Brass - 20mΩ