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庫存編號 879-8263
製造零件編號2GK57-73-XA
HK$88.77
單位
DPST Latching 15 A Panel Mount Tab - - - - 12.7mm 17.44mm Brass 250V ac -
RS庫存編號 164-8730
製造零件編號FTD59G04
HK$107.82
個 (以毎盒:100)
單位
SPDT Latching 400 mA @ 20 V dc Panel Mount Solder - - - - 6.2mm 16.5mm Chrome Plated Brass - 10mΩ
RS庫存編號 317-421
製造零件編號AWTD1504
HK$157.64
單位
Single Pole Double Throw (SPDT) Latching 20 A @ 250 V ac Panel Mount Tab IP67 - - - - 17.5mm Brass - 10mΩ
RS庫存編號 419-849
BrandRS PRO
HK$19.77
單位
Single Pole Single Throw (SPST) Latching 16 A @ 125 V ac Panel Mount Tab - Yes - - 20.2mm 16mm PC - 50mΩ
RS庫存編號 734-7016
BrandRS PRO
HK$24.37
單位
Double Pole Double Throw (DPDT) Latching 5 A @ 250 V ac Panel Mount Solder - - - - 6.35mm 10.41mm Chromium Plated Brass - 10mΩ
RS庫存編號 762-4767
製造零件編號8C1041-Z
HK$34.60
單位
Single Pole Double Throw (SPDT) (On)-Off-(On) 3 A@ 250 V ac, 6 A@ 125 V ac Panel Mount Tab - - - - - 11.4mm - - 10mΩ
RS庫存編號 377-9642
製造零件編號5637A
BrandAPEM
HK$49.18
單位
Single Pole Single Throw (SPST) (On)-Off-(On) 4 A @ 30 V dc Panel Mount Solder - - - - - - Brass - 10mΩ
RS庫存編號 317-572
製造零件編號FTD59G04
HK$130.23
單位
SPDT Latching 400 mA @ 20 V Panel Mount Solder - - - - 6.2mm 16.5mm Chrome Plated Brass - 10mΩ
RS庫存編號 320-938
製造零件編號5646A9
BrandAPEM
HK$83.82
單位
Double Pole Double Throw (DPDT) Latching 4 A @ 30 V dc Panel Mount Solder - - - - - 11.4mm Brass - 10mΩ
RS庫存編號 317-033
製造零件編號FTG0904
HK$71.79
單位
Single Pole Double Throw (SPDT) (On)-Off-(On) 4 A @ 30 V dc Panel Mount Solder - - - - 6.2mm 10.5mm Chrome Plated Brass - 10mΩ
RS庫存編號 135-4445
製造零件編號AWTD1504
HK$129.40
個 (以毎盒:100)
單位
SPDT Latching 20 A @ 250 V ac Panel Mount Tab IP67 - - - - 17.5mm Brass - 10mΩ
RS庫存編號 377-9658
製造零件編號5638A
BrandAPEM
HK$27.06
單位
Single Pole Single Throw (SPST) On-Off-(On) 4 A @ 30 V dc Panel Mount Solder - - - - - - Brass - 10mΩ
RS庫存編號 823-5119
製造零件編號01818.1102-00
BrandMarquardt
HK$43.75
單位
SPDT On-Off-(On) 6 A @ 250 V ac Panel Mount Tab IP40 - 18.5mm 13.2mm - 14mm PA - <100mΩ
RS庫存編號 164-8732
製造零件編號FTS0904
HK$84.54
個 (以毎盒:100)
單位
DPDT (On)-Off-(On) 6 A @ 250 V ac Panel Mount Solder - - - - 6.2mm 10.5mm Chrome Plated Brass - 10mΩ
RS庫存編號 575-523
製造零件編號0320.0302
BrandMarquardt
HK$434.25
單位
2 NO On-Off 16 A @ 250 V ac Panel Mount Screw - - - - - 27mm Polyamide - -
RS庫存編號 317-005
製造零件編號FTE0904
HK$78.90
單位
Single Pole Double Throw (SPDT) On-Off-On 4 A @ 30 V dc Panel Mount Solder - - - - 6.2mm 10.5mm Chrome Plated Brass - 10mΩ
RS庫存編號 417-5451
製造零件編號3631NF/2
BrandAPEM
HK$191.44
單位
Single Pole Single Throw (SPST) Latching 12 A Panel Mount Tab IP67 - - - - 17.5mm Brass 28V dc 10mΩ
RS庫存編號 734-7208
BrandRS PRO
HK$34.89
單位
Double Pole Double Throw (DPDT) On-Off-On 3 A @ 120 V ac PCB Through Hole - - - - 4.95mm 5.33mm Chromium Plated Brass - 20mΩ
RS庫存編號 199-0954
製造零件編號MTA206P
HK$102.41
單位
Double Pole Double Throw (DPDT) On-Off-On 4 A @ 30 V dc Panel Mount Solder - - - - - 10.5mm - - 10mΩ
RS庫存編號 417-5473
製造零件編號3641NF/2
BrandAPEM
HK$166.80
單位
Double Pole Single Throw (DPST) Latching 12 A Panel Mount Tab IP67 - - - - 17.5mm Brass 28V dc 10mΩ