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.

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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. 734-7154
BrandRS PRO
kr 26,85
Each
Units
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. 879-8531
Mfr. Part No.6FC54-73
kr 62,84
Each
Units
SPDT (On)-Off-(On) 15 A Panel Mount Screw - - - - 12.7mm 17.44mm Brass 250V ac -
RS Stock No. 734-7066
BrandRS PRO
kr 22,40
Each
Units
SPDT Latching 5 A @ 250 V ac PCB Through Hole - - - - 6.35mm 10.41mm Chromium Plated Brass 250V ac 10mΩ
RS Stock No. 251-9253
Mfr. Part No.631H/2
BrandAPEM
kr 54,90
Each
Units
SPST Latching 10 A@ 24 V dc Panel Mount Tab - - - - - 17.5mm Nickel Plated Brass - 10mΩ
RS Stock No. 533-6613
Mfr. Part No.637H/2
BrandAPEM
kr 80,67
Each
Units
SPST (On)-Off-(On) 5 A @ 25 V dc Panel Mount Tab - - - - - 17.5mm Nickel Plated Brass - 10mΩ
RS Stock No. 734-7062
BrandRS PRO
kr 17,72
Each
Units
SPDT Latching 2 A Panel Mount Solder - - - - 6.35mm 10.41mm Chromium Plated Brass - 10mΩ
RS Stock No. 734-6984
BrandRS PRO
kr 35,33
Each
Units
SPDT On-Off-On 400 mA @ 20 V dc PCB Through Hole IP67 - - - - 7.62mm Chromium Plated Brass - 10mΩ
RS Stock No. 614-6348
Mfr. Part No.647H/2-5RS
BrandAPEM
kr 149,05
Each
Units
DPDT (On)-Off-(On) 5 A @ 25 V dc Panel Mount Solder - - - - 12.5mm 40mm Nickel Plated Brass - 10mΩ
RS Stock No. 316-995
Mfr. Part No.F4TN0904
kr 144,92
Each
Units
4PDT Latching 4 A @ 30 V dc Panel Mount Solder - - - - 6.2mm 10.5mm Chrome Plated Brass - 10mΩ
RS Stock No. 266-1578
Mfr. Part No.636H/2
BrandAPEM
kr 64,58
Each
Units
SPST Latching 10 A@ 24 V dc Panel Mount Tab - - - - - 17.5mm Nickel Plated Brass - 10mΩ
RS Stock No. 910-8071
Mfr. Part No.641H
BrandAPEM
kr 100,89
Each
Units
DPST Latching 15 A Panel Mount Screw - - - - 12.2mm 17.5mm Nickel Plated Brass 400V ac 10mΩ
RS Stock No. 881-1353
Mfr. Part No.EK204-73
kr 91,10
Each
Units
DPST Latching 20 A Panel Mount Screw - - - - 12.7mm 17.44mm - 250V -
RS Stock No. 734-7044
BrandRS PRO
kr 24,46
Each
Units
DPDT (On)-Off-(On) 5 A @ 250 V ac Panel Mount Solder - - - - 6.35mm 10.41mm Chromium Plated Brass - 10mΩ
RS Stock No. 910-8119
Mfr. Part No.647H/2
BrandAPEM
kr 150,68
Each
Units
DPDT (On)-Off-(On) 10 A Panel Mount Solder - - - - 12.2mm 17.5mm Nickel Plated Brass 400V ac 10mΩ
RS Stock No. 734-7000
BrandRS PRO
kr 29,54
Each
Units
SPDT On-Off-On 3 A @ 250 V ac Panel Mount Solder - - - - - 11.5mm Chromium Plated Brass - 10mΩ
RS Stock No. 417-5451
Mfr. Part No.3631NF/2
BrandAPEM
kr 223,08
Each
Units
SPST Latching 12 A Panel Mount Tab IP67 - - - - 17.5mm Brass 28V dc 10mΩ
RS Stock No. 734-7113
BrandRS PRO
kr 30,98
Each
Units
SPDT Latching 5 A @ 250 V ac PCB Through Hole - - 6.86mm 12.7mm - 17.56mm Chromium Plated Brass - 10mΩ
RS Stock No. 734-7022
BrandRS PRO
kr 29,35
Each
Units
DPDT Latching 5 A @ 250 V ac Panel Mount Solder - - - - 6.35mm 12.3mm Chromium Plated Brass - 10mΩ
RS Stock No. 266-1540
Mfr. Part No.646H/2
BrandAPEM
kr 107,63
Each
Units
DPDT Latching 10 A @ 24 V dc Panel Mount Tab - - - - - 17.5mm Nickel Plated Brass - 10mΩ
RS Stock No. 734-6990
BrandRS PRO
kr 26,67
Each
Units
SPDT Latching 5 A @ 250 V ac PCB Through Hole IP67 - 6.6mm 12.7mm - 12.7mm Chrome Plated Brass - 10mΩ