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 861-0309
製造零件編號C3972BBAAA
TWD276.00
單位
DPDT (On)-Off-(On) 20 A Panel Mount Tab - - - - 12.7mm 17.5mm Metal - -
RS庫存編號 320-972
製造零件編號5666A9
BrandAPEM
TWD851.00
單位
4P On-On 4 A @ 30 V dc Panel Mount Solder - - - - - 11.4mm Brass - 10mΩ
RS庫存編號 710-9870
製造零件編號4-1825139-0
TWD266.00
單位
Double Pole Double Throw (DPDT) On-On-On 5 A @ 28 V dc Panel Mount Solder - - - - - 17.5mm Phenolic - 10mΩ
RS庫存編號 820-0523
BrandRS PRO
TWD432.00
單位
DPDT On-On-On 5 A @ 250 V ac PCB Solder IP67 - - - - 18mm Brass - 10mΩ
RS庫存編號 448-0747
BrandRS PRO
TWD68.60
/個 (每包:5個)
單位
Single Pole Double Throw (SPDT) Latching 5 A @ 28 V dc Panel Mount Solder - - - - 6.35mm 10.41mm Chromium Plated Brass - 10mΩ
RS庫存編號 164-1983
製造零件編號4-1825139-0
TWD232.80
個 (以毎袋:100)
單位
DPDT On-On-On 5 A @ 28 V dc Panel Mount Solder - - - - - 17.5mm Phenolic - 10mΩ
RS庫存編號 317-572
製造零件編號FTD59G04
TWD969.00
單位
SPDT Latching 400 mA @ 20 V Panel Mount Solder - - - - 6.2mm 16.5mm Chrome Plated Brass - 10mΩ
RS庫存編號 350-254
製造零件編號C1770HOAAF
TWD266.00
單位
Double Pole Double Throw (DPDT) On-Off-On 20 A @ 250 V ac Panel Mount Tab IP40 - - - 12.7mm 16.4mm PC - 100mΩ
RS庫存編號 164-8730
製造零件編號FTD59G04
TWD427.30
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 190-0658
製造零件編號5639A
BrandAPEM
TWD148.00
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 401-686
BrandRS PRO
TWD101.00
單位
SPDT Latching 400 mA @ 20 V PCB Through Hole IP67 - - - - 6.1mm Brass - 20mΩ
RS庫存編號 401-670
BrandRS PRO
TWD88.00
單位
Single Pole Double Throw (SPDT) On-Off-On 5 A @ 250 V ac PCB Through Hole - - - - - 10.41mm Brass - 10mΩ
RS庫存編號 518-5314
製造零件編號Y12CP
BrandAPEM
TWD351.00
單位
Double Pole Single Throw (DPST) On-(Off) 15 A @ 250 V ac Panel Mount Tab - - - - - 17.5mm - - 10mΩ
RS庫存編號 518-5308
製造零件編號X32CP
BrandAPEM
TWD278.00
單位
Single Pole Double Throw (SPDT) On-Off-On 15 A @ 250 V ac Panel Mount Tab - - - - - 17.5mm - - 10mΩ
RS庫存編號 373-1729
製造零件編號ZL39S0101
BrandAPEM
TWD156.30
/個 (每包:3個)
單位
Single Pole Single Throw (SPST) On-Off-On 500 mA @ 48 V Panel Mount Solder - - - - - 5.5mm Brass - 20mΩ
RS庫存編號 734-7154
BrandRS PRO
TWD84.00
單位
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庫存編號 762-5126
製造零件編號ATE1D-6M3-10-Z
TWD96.00
單位
Single Pole Double Throw (SPDT) Latching 50 mA@ 48 V ac/dc PCB Through Hole - - - - - 6mm - - 50mΩ
RS庫存編號 124-5956
製造零件編號S308T
TWD262.00
單位
SPDT (On)-Off-(On) 15 A @ 125 V ac, 20 A @ 30 V dc Panel Mount Screw - - - - 12.5mm 17.5mm Chrome Plated Brass 30 V dc, 250 V ac 10mΩ
RS庫存編號 823-5125
製造零件編號01829.1101-01
BrandMarquardt
TWD232.00
單位
DPDT On-Off-On 6 A @ 250 V ac Panel Mount Tab IP40 - 23.9mm 24mm - 22.5mm PA - <100mΩ
RS庫存編號 354-2535
製造零件編號A-12AH
TWD141.00
單位
Single Pole Double Throw (SPDT) Latching 100 mA @ 28 V ac/dc PCB Through Hole - - - - - 10mm Brass - 50mΩ