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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Omschrijving Prijs 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
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FabrikantTE Connectivity
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Single Pole Single Throw (SPST) Latching 10 A@ 24 V dc Panel Mount Solder, Tab - - - - - 17.5mm Nickel Plated Brass - 10mΩ
RS-stocknr. 518-5291A
FabrikantnummerX12CP
FabrikantAPEM
€ 3,71
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Single Pole Single Throw (SPST) Latching 15 A @ 250 V ac Panel Mount Tab - - - - - 17.5mm - - 10mΩ
RS-stocknr. 518-5291
FabrikantnummerX12CP
FabrikantAPEM
€ 7,29
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Single Pole Single Throw (SPST) Latching 15 A @ 250 V ac Panel Mount Tab - - - - - 17.5mm - - 10mΩ
RS-stocknr. 317-617
FabrikantnummerFTD79G04
FabrikantTE Connectivity
€ 9,94
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Single Pole Double Throw (SPDT) Latching 400 mA @ 20 V Panel Mount Through Hole - - - - 6.2mm 6.5mm Chrome Plated Brass - 10mΩ
RS-stocknr. 163-8521
FabrikantnummerFTD79G04
FabrikantTE Connectivity
€ 8,148
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Single Pole Double Throw (SPDT) Latching 400 mA @ 20 V Panel Mount Through Hole - - - - 6.2mm 6.5mm Chrome Plated Brass - 10mΩ
RS-stocknr. 401-703
FabrikantRS PRO
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Single Pole Double Throw (SPDT) Latching 5 A @ 250 V ac PCB Through Hole - - - - - 10.41mm Brass - 10mΩ
RS-stocknr. 394-419
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€ 5,12
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Double Pole Double Throw (DPDT) Latching 5 A @ 250 V ac Panel Mount Solder - - - - - 12.3mm Brass - 10mΩ
RS-stocknr. 734-7062
FabrikantRS PRO
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Single Pole Double Throw (SPDT) Latching 2 A Panel Mount Solder - - - - 6.35mm 10.41mm Chromium Plated Brass - 10mΩ
RS-stocknr. 734-7154
FabrikantRS PRO
€ 3,03
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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-stocknr. 190-0664
Fabrikantnummer5646A
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Double Pole Single Throw (DPST) Latching 4 A @ 30 V dc Panel Mount Solder - - - - - - Brass - 10mΩ
RS-stocknr. 190-0642
Fabrikantnummer5636A
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€ 5,64
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Single Pole Single Throw (SPST) Latching 4 A @ 30 V dc Panel Mount Solder - - - - - - Brass - 10mΩ
RS-stocknr. 401-670
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€ 2,96
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Single Pole Double Throw (SPDT) On-Off-On 5 A @ 250 V ac PCB Through Hole - - - - - 10.41mm Brass - 10mΩ
RS-stocknr. 861-0270
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FabrikantArcolectric
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€ 2,43
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Single Pole Double Throw (SPDT) On-Off-On 3 A @ 120 V ac Panel Mount Solder - - - - 4.95mm 5.33mm Chromium Plated Brass - 20mΩ
RS-stocknr. 320-916
Fabrikantnummer5636A9
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€ 6,51
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SP On-On 4 A @ 30 V dc Panel Mount Solder - - - - - 11.4mm Brass - 10mΩ
RS-stocknr. 734-7000
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