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 1497 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. 354-2535
Mfr. Part No.A-12AH
TWD130.00
Each
units
Single Pole Double Throw (SPDT) Latching 100 mA @ 28 V ac/dc PCB Through Hole - - - - - 10mm Brass - 50mΩ
RS Stock No. 734-7154
BrandRS PRO
TWD83.00
Each
units
Single Pole Single Throw (SPST) Latching 5 A @ 28 V dc Panel Mount Solder - - 6.86mm 12.7mm - 10.4mm Chrome Plated Brass 28V dc 10mΩ
RS Stock No. 124-5918
Mfr. Part No.M2021SD8W01
TWD247.00
Each
units
DPST Latching 4 A @ 30 V dc, 6 A @ 125 V ac PCB Solder IP67 - - - 6.5mm 10.5mm Chrome Plated Brass 30 V dc, 250 V ac 10mΩ
RS Stock No. 734-7255
BrandRS PRO
TWD104.00
Each
units
Single Pole Double Throw (SPDT) On-Off-On 400 mA @ 20 V PCB Through Hole IP67 - - - - 3.8mm Glass Filled Nylon - 100mΩ
RS Stock No. 842-5044
Mfr. Part No.61NT1-2
BrandHoneywell
TWD561.00
Each
units
SPST Latching 6 A @ 230 V ac, 15 A @ 115 V ac, 20 A @ 28 V dc Panel Mount Screw IP67, IP68 - - - 12.4mm 17mm Metal, Plastic - -
RS Stock No. 875-0655
Mfr. Part No.TT13A3T
TWD92,113.00
1 Pack of 250
Pack(s)
SPST Latching 3 A@ 125 V ac, 3 A@ 28 V dc Panel Mount Solder - - - - 4.5mm 9.68mm Brass Alloy, Stainless Steel, Thermoplastic 28 V dc, 125 V ac 20mΩ
RS Stock No. 320-916
Mfr. Part No.5636A9
BrandAPEM
TWD146.00
Each
units
SP On-On 4 A @ 30 V dc Panel Mount Solder - - - - - 11.4mm Brass - 10mΩ
RS Stock No. 401-692
BrandRS PRO
TWD95.00
Each
units
DPDT On-Off-On 5 A @ 28 V dc PCB Through Hole - - - - - 10.41mm Chromium Plated Brass - 10mΩ
RS Stock No. 762-5417
Mfr. Part No.ET206K12-Z
TWD139.00
Each
units
Double Pole Single Throw (DPST) Latching 6 A@ 125 V ac Panel Mount Solder - - - - - 17mm - - 20mΩ
RS Stock No. 224-372
Mfr. Part No.646H/2-5
BrandAPEM
TWD446.00
Each
units
Double Pole Double Throw (DPDT) Latching 10 A @ 24 V dc Panel Mount Solder - - - - 12.5mm 40mm Nickel Plated Brass - 10mΩ
RS Stock No. 354-3241
Mfr. Part No.S-822
TWD705.00
Each
units
Double Pole Double Throw (DPDT) Latching 30 A@ 250 V ac, 30 A@ 30 V dc Panel Mount Screw - - - - - 22mm Brass - 10mΩ
RS Stock No. 710-9882
Mfr. Part No.4-1825139-5
TWD208.00
Each
units
DP3T (On)-On-(On) 5 A @ 28 V dc Panel Mount Solder - - - - 6.35mm 10.41mm Phenolic - 10mΩ
RS Stock No. 453-7988
Mfr. Part No.TL-22H1SKRRG4
TWD315.00
Each
units
Double Pole Double Throw (DPDT) Latching 100 mA @ 28 V Panel Mount Solder IP65 Yes - - 12.5mm 11mm PC - 20mΩ
RS Stock No. 394-419
BrandRS PRO
TWD110.00
Each
units
DPDT Latching 5 A @ 250 V ac Panel Mount Solder - - - - - 12.3mm Brass - 10mΩ
RS Stock No. 274-0429
Mfr. Part No.5656A
BrandAPEM
TWD569.00
Each
units
3-pole on-off switch Latching 4 A @ 30 V dc Panel Mount Solder - - - - - - Brass - 10mΩ
RS Stock No. 168-0802
Mfr. Part No.1825136-9
TWD156.50
Each (In a Box of 100)
units
SPDT Latching 5 A @ 28 V dc PCB Through Hole - - - - - 18.03mm Phenolic - 10mΩ
RS Stock No. 710-9463
Mfr. Part No.3-1825137-7
TWD164.00
Each
units
Single Pole Double Throw (SPDT) (On)-Off-(On) 5 A @ 28 V dc PCB Through Hole - - - - 6.35mm 10.41mm Phenolic - 10mΩ
RS Stock No. 433-3269
Mfr. Part No.T4-0122
BrandOtto
TWD3,736.00
Each
units
SP4T - 10 mA Panel Mount Solder IP64, IP68S - - - - - Thermoplastic - -
RS Stock No. 354-2967
Mfr. Part No.M-2025
TWD184.00
Each
units
Double Pole Double Throw (DPDT) (On)-On 3 A@ 250 V ac, 6 A@ 125 V ac Panel Mount Solder - - - - - 10.5mm Chromium Plated Brass - 10mΩ
RS Stock No. 665-685
Mfr. Part No.646NH/2
BrandAPEM
TWD385.00
Each
units
Double Pole Double Throw (DPDT) Latching 10 A @ 24 V dc Panel Mount Tab - - - - - 13.5mm Polyamide - 10mΩ