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 417-5451
製造零件編號3631NF/2
BrandAPEM
HK$85.98
單位
Single Pole Single Throw (SPST) Latching 12 A Panel Mount Solder, Tab IP67 - - - - 17.5mm Brass 28V dc 10mΩ
RS庫存編號 734-7123
BrandRS PRO
HK$19.00
單位
Single Pole Double Throw (SPDT) On-Off-On 5 A @ 250 V ac Panel Mount Solder - - - - 6.35mm 10.41mm Chromium Plated Brass - 10mΩ
RS庫存編號 575-523
製造零件編號0320.0302
BrandMarquardt
HK$301.49
單位
2 NO On-Off 16 A @ 250 V ac Panel Mount Screw - - - - - 27mm Polyamide - -
RS庫存編號 417-5473
製造零件編號3641NF/2
BrandAPEM
HK$161.94
單位
Double Pole Single Throw (DPST) Latching 12 A Panel Mount Solder, Tab IP67 - - - - 17.5mm Brass 28V dc 10mΩ
RS庫存編號 475-1982
製造零件編號A-12HV
HK$45.08
單位
Single Pole Double Throw (SPDT) Latching 100 mA @ 28 V ac/dc PCB Through Hole - - - - - 6.3mm Brass - 50mΩ
RS庫存編號 762-5246
製造零件編號ATE2P-6M3-10-Z
HK$32.94
單位
Double Pole Double Throw (DPDT) On-Off-On 50 mA@ 48 V ac/dc PCB Right Angle Through Hole - - - - - 6mm - - 50mΩ
RS庫存編號 317-005
製造零件編號FTE0904
HK$57.17
單位
Single Pole Double Throw (SPDT) On-Off-On 4 A @ 30 V dc Panel Mount Through Hole - - - - 6.2mm 10.5mm Chrome Plated Brass - 10mΩ
RS庫存編號 316-989
製造零件編號FTN0904
HK$54.04
單位
DPDT Latching 4 A @ 30 V dc Panel Mount Through Hole - - - - 6.2mm 10.5mm Chrome Plated Brass - 10mΩ
RS庫存編號 448-0769
BrandRS PRO
HK$18.552
/個 (每包:5個)
單位
Double Pole Double Throw (DPDT) Latching 5 A @ 28 V dc Panel Mount Solder - - - - 6.35mm 10.41mm Brass - 10mΩ
RS庫存編號 164-8691
製造零件編號A4TN15W04
HK$584.70
個 (以毎盒:50)
單位
Four Pole Double Throw (4PDT) Latching 20 A @ 250 V ac Panel Mount Solder, Tab IP67 - - - - 17.5mm Brass - 10mΩ
RS庫存編號 881-1448
製造零件編號IM254-73
HK$199.05
單位
Four Pole Double Throw (4PDT) On-Off-On 15 A Panel Mount Screw - - - - 12.7mm 17.44mm - 250V ac -
RS庫存編號 123-2398
製造零件編號5636A12
BrandAPEM
HK$37.97
單位
Single Pole Double Throw (SPDT) Latching 4 A Panel Mount Solder Lug - - - - 6.5mm 6.3mm Brass 30V dc 10mΩ
RS庫存編號 762-5980
製造零件編號CF-TA-1EB4-A02
HK$19.84
單位
Single Pole Double Throw (SPDT) On-Off-On 50 mA@ 48 V ac/dc Surface Mount Right Angle Surface Mount - - - - - 6mm - - 100mΩ
RS庫存編號 879-8203
製造零件編號2FA53-73/TABS
HK$23.199
/個 (每包:10個)
單位
Single Pole Single Throw (SPST) Latching 15 A Panel Mount Solder Lug - - - - 12.7mm 17.44mm Brass 250V ac -
RS庫存編號 453-7938
製造零件編號TL-22H1DKYYS1
HK$93.53
單位
Double Pole Double Throw (DPDT) Latching 3 A @ 250 V ac Panel Mount Solder IP65 Yes - - 12.5mm 17.5mm PC - 10mΩ
RS庫存編號 448-0955
BrandRS PRO
HK$34.42
單位
Double Pole Double Throw (DPDT) Latching 400 mA @ 20 V PCB Through Hole - - - - - 5.33mm Chrome Plated Brass - 20mΩ
RS庫存編號 664-288
製造零件編號TL36WW050
BrandAPEM
HK$38.82
單位
SP On-On 400 mA @ 20 V PCB Through Hole - - - - - 5.3mm Brass - 20mΩ
RS庫存編號 317-673
製造零件編號FTP7904
BrandBinder
HK$102.58
單位
Double Pole Double Throw (DPDT) On-Off-On 6 A @ 250 V ac Panel Mount Through Hole - - - - 6.2mm 11.5mm Chrome Plated Brass - 10mΩ
RS庫存編號 875-0677
製造零件編號TT11DGVRA104
HK$23,814.09
1 包 250 套
Pack(s)
Single Pole Double Throw (SPDT) Latching - Panel Mount Vertical Right Angle Through Hole - - - - 4.5mm 5.61mm Brass Alloy, Stainless Steel, Thermoplastic 20 V ac, 20 V dc 20mΩ
RS庫存編號 354-3241
製造零件編號S-822
HK$214.78
單位
Double Pole Double Throw (DPDT) Latching 30 A@ 250 V ac, 30 A@ 30 V dc Panel Mount Screw - - - - - 22mm Brass - 10mΩ