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 197-7923
製造零件編號521
BrandAPEM
HK$65.43
單位
Single Pole Single Throw (SPST) Latching 6 A @ 30 V dc Panel Mount Screw - - - - - 15mm - - 10mΩ
RS庫存編號 350-204
製造零件編號C1700HOAAG
HK$27.70
單位
SPST Latching 16 A @ 250 V ac Panel Mount Solder, Tab IP40 - - - 12.7mm 16.4mm PC - 100mΩ
RS庫存編號 518-5291
製造零件編號X12CP
BrandAPEM
HK$53.93
單位
Single Pole Single Throw (SPST) Latching 15 A @ 250 V ac Panel Mount Tab - - - - - 17.5mm - - 10mΩ
RS庫存編號 401-692
BrandRS PRO
HK$20.97
單位
DPDT On-Off-On 5 A @ 28 V dc PCB Through Hole - - - - - 10.41mm Chromium Plated Brass - 10mΩ
RS庫存編號 692-5223
製造零件編號5646ADBK2V
BrandAPEM
HK$126.19
單位
Double Pole Double Throw (DPDT) Latching 4 A @ 30 V dc Panel Mount Solder - - - - 6.5mm 14.75mm Nickel Plated Brass - 10mΩ
RS庫存編號 320-922
製造零件編號5639A9
BrandAPEM
HK$46.02
單位
SP On-Off-On 4 A @ 30 V dc Panel Mount Solder - - - - - 11.4mm Brass - 10mΩ
RS庫存編號 448-0775
BrandRS PRO
HK$19.708
/個 (每包:5個)
單位
Double Pole Double Throw (DPDT) On-Off-On 5 A @ 28 V dc Panel Mount Solder - - - - 6.35mm 10.41mm Chromium Plated Brass - 10mΩ
RS庫存編號 199-318
製造零件編號AWTS1504
HK$227.64
單位
DPDT (On)-Off-(On) 20 A @ 250 V ac Panel Mount Tab IP67 - - - - 17.5mm Brass - 10mΩ
RS庫存編號 692-5214
製造零件編號5659CDB
BrandAPEM
HK$85.98
單位
3-pole on-off switch On-Off-On 400 mA @ 20 V Panel Mount Solder - - - - - - Brass - 10mΩ
RS庫存編號 879-8421
製造零件編號61115929-0-0-N
HK$31.243
/個 (每包:52個)
單位
Double Pole Single Throw (DPST) Latching 4 A @ 250 V ac Panel Mount Solder - - 19.8mm 12.9mm 12.7mm - - - -
RS庫存編號 819-9322
製造零件編號MTG 206 S
HK$88.31
單位
Double Pole Double Throw (DPDT) (On)-Off-(On) 4 A @ 30 V dc Panel Mount Solder Tag - - - - 12.5mm 11.5mm - - <20mΩ
RS庫存編號 394-419
BrandRS PRO
HK$37.50
單位
DPDT Latching 5 A @ 250 V ac Panel Mount Solder - - - - - 12.3mm Brass - 10mΩ
RS庫存編號 787-4820
製造零件編號7101SYZQE
BrandC & K
HK$74.29
單位
Single Pole Single Throw (SPST) Latching 5 A @ 28 V dc Through Hole Solder Lug - - - - - 0.42in Chrome Plated Brass - 10mΩ
RS庫存編號 316-917
製造零件編號21136NA
BrandAPEM
HK$49.22
單位
SP On-On 4 A @ 30 V dc PCB Through Hole - - - - - 11.5mm Brass - 20mΩ
RS庫存編號 448-0898
BrandRS PRO
HK$24.72
單位
Single Pole Double Throw (SPDT) Latching 400 mA @ 20 V PCB Through Hole - - - - - 5.33mm Chrome Plated Brass - 20mΩ
RS庫存編號 316-973
製造零件編號FTD0904
HK$46.56
單位
SPDT Latching 4 A @ 30 V dc Panel Mount Through Hole - - - - 6.2mm 11.5mm Chrome Plated Brass - 10mΩ
RS庫存編號 135-4437
製造零件編號AWTS1504
HK$152.612
個 (以毎盒:100)
單位
Double Pole Double Throw (DPDT) (On)-Off-(On) 20 A @ 250 V ac Panel Mount Tab IP67 - - - - 17.5mm Brass - 10mΩ
RS庫存編號 741-1000
製造零件編號1821.6101
BrandMarquardt
HK$37.40
單位
Single Pole Single Throw (SPST) Latching 6 A @ 250 V ac - Solder IP40 - - - - 14mm Polyamide - 100mΩ
RS庫存編號 762-4767
製造零件編號8C1041-Z
HK$27.18
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 164-8730
製造零件編號FTD59G04
HK$72.26
個 (以毎盒:100)
單位
Single Pole Double Throw (SPDT) Latching 400 mA @ 20 V Panel Mount Solder - - - - 6.2mm 16.5mm Chrome Plated Brass - 10mΩ