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. 665-663
Mfr. Part No.639NH/2
BrandAPEM
PHP401.10
Each
units
SPDT On-Off-On 10 A @ 24 V dc Panel Mount Tab - - - - - 13.5mm Polyamide - 10mΩ
RS Stock No. 251-9253
Mfr. Part No.631H/2
BrandAPEM
PHP280.35
Each
units
Single Pole Single Throw (SPST) Latching 10 A@ 24 V dc Panel Mount Tab - - - - - 17.5mm Nickel Plated Brass - 10mΩ
RS Stock No. 123-2420
Mfr. Part No.5647CDB17
BrandAPEM
PHP519.92
Each
units
DPDT (On)-Off-On 10 mA Panel Mount Solder - - - - 6.5mm 7mm Brass 20V ac/dc 10mΩ
RS Stock No. 518-5336
Mfr. Part No.Y32CP
BrandAPEM
PHP715.19
Each
units
Double Pole Double Throw (DPDT) On-Off-On 15 A @ 250 V ac Panel Mount Tab - - - - - 17.5mm - - 10mΩ
RS Stock No. 910-8083
Mfr. Part No.647H
BrandAPEM
PHP861.53
Each
units
DPDT (On)-Off-(On) 10 A Panel Mount Screw - - - - 12.2mm 17.5mm Nickel Plated Brass 400V ac 10mΩ
RS Stock No. 123-2402
Mfr. Part No.5637CDB12
BrandAPEM
PHP488.76
Each
units
SPDT (On)-Off-On 10 mA Panel Mount Solder - - - - 6.5mm 6.3mm Brass 20V ac/dc 10mΩ
RS Stock No. 123-2414
Mfr. Part No.5637CDB17
BrandAPEM
PHP461.17
Each
units
SPDT (On)-Off-On 10 mA Panel Mount Solder - - - - 6.5mm 7mm Brass 20V ac/dc 10mΩ
RS Stock No. 320-966
Mfr. Part No.5642A9
BrandAPEM
PHP615.30
Each
units
Double Pole Double Throw (DPDT) Momentary 4 A @ 30 V dc Panel Mount Solder - - - - - 11.4mm Brass - 10mΩ
RS Stock No. 518-5314
Mfr. Part No.Y12CP
BrandAPEM
PHP577.94
Each
units
Double Pole Single Throw (DPST) On-Off-On 15 A @ 250 V ac Panel Mount Tab - - - - - 17.5mm - - 10mΩ
RS Stock No. 518-5291
Mfr. Part No.X12CP
BrandAPEM
PHP413.24
Each
units
Single Pole Single Throw (SPST) On-Off-On 15 A @ 250 V ac Panel Mount Tab - - - - - 17.5mm - - 10mΩ
RS Stock No. 132-3073
Mfr. Part No.TL42WW050
BrandAPEM
PHP310.66
Each
units
Double Pole Single Throw (DPST) Momentary 400 mA @ 20 V PCB Through Hole - - - - - 5.3mm Brass - 20mΩ
RS Stock No. 320-916
Mfr. Part No.5636A9
BrandAPEM
PHP414.23
Each
units
SP On-On 4 A @ 30 V dc Panel Mount Solder - - - - - 11.4mm Brass - 10mΩ
RS Stock No. 320-922
Mfr. Part No.5639A9
BrandAPEM
PHP410.03
Each
units
SP On-Off-On 4 A @ 30 V dc Panel Mount Solder - - - - - 11.4mm Brass - 10mΩ
RS Stock No. 123-2405
Mfr. Part No.5647A12
BrandAPEM
PHP511.91
Each
units
DPDT (On)-Off-On 4 A Panel Mount Solder - - - - 6.5mm 6.3mm Brass 30V dc 10mΩ
RS Stock No. 123-2407
Mfr. Part No.5646CDB12
BrandAPEM
PHP527.05
Each
units
DPDT Latching 10 mA Panel Mount Solder - - - - 6.5mm 6.3mm Brass 20V ac/dc 10mΩ
RS Stock No. 190-0642
Mfr. Part No.5636A
BrandAPEM
PHP247.80
Each
units
Single Pole Single Throw (SPST) Latching 4 A @ 30 V dc Panel Mount Solder - - - - - - Brass - 10mΩ
RS Stock No. 692-5233
Mfr. Part No.5666ADBK2V
BrandAPEM
PHP1,341.65
Each
units
Four Pole Double Throw (4PDT) Latching 4 A @ 30 V dc Panel Mount Solder - - - - 6.5mm 14.75mm Nickel Plated Brass - 10mΩ
RS Stock No. 224-085
Mfr. Part No.5669A
BrandAPEM
PHP671.27
Each
units
4P On-Off-On 4 A @ 30 V dc Panel Mount Solder - - - - - - Brass - 10mΩ
RS Stock No. 123-2417
Mfr. Part No.5647A17
BrandAPEM
PHP530.61
Each
units
DPDT (On)-Off-On 4 A Panel Mount Solder - - - - 6.5mm 7mm Brass 30V dc 10mΩ
RS Stock No. 320-938
Mfr. Part No.5646A9
BrandAPEM
PHP499.28
Each
units
Double Pole Double Throw (DPDT) Latching 4 A @ 30 V dc Panel Mount Solder - - - - - 11.4mm Brass - 10mΩ