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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รายละเอียดสินค้า / Description ราคา / 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. 448-0949
Brand :RS PRO
THB149.46
Each
Units
Single Pole Double Throw (SPDT) (On)-Off-(On) 400 mA @ 20 V PCB Through Hole - - - - - 5.33mm Brass - 20mΩ
RS Stock No. 394-419
Brand :RS PRO
THB145.83
Each
Units
DPDT Latching 5 A @ 250 V ac Panel Mount Solder - - - - - 12.3mm Brass - 10mΩ
RS Stock No. 448-0747
Brand :RS PRO
THB54.186
Each: (In a Pack of 5)
Units
Single Pole Double Throw (SPDT) Latching 5 A @ 28 V dc Panel Mount Solder - - - - 6.35mm 10.41mm Chromium Plated Brass - 10mΩ
RS Stock No. 448-0753
Brand :RS PRO
THB87.768
Each: (In a Pack of 5)
Units
Single Pole Double Throw (SPDT) On-Off-On 5 A @ 28 V dc Panel Mount Solder - - - - 6.35mm 10.41mm Brass - 10mΩ
RS Stock No. 394-471
Brand :RS PRO
THB541.00
Each
Units
SPDT Latching 3 A @ 120 V ac Panel Mount Solder - - - - - 16mm Brass - 20mΩ
RS Stock No. 734-7185
Brand :RS PRO
THB61.79
Each
Units
Double Pole Double Throw (DPDT) Latching 400 mA @ 20 V PCB Through Hole - - - - 4.95mm 5.33mm Chromium Plated Brass - 20mΩ
RS Stock No. 448-0898
Brand :RS PRO
THB37.19
Each
Units
Single Pole Double Throw (SPDT) Latching 400 mA @ 20 V PCB Through Hole - - - - - 5.33mm Chrome Plated Brass - 20mΩ
RS Stock No. 394-465
Brand :RS PRO
THB85.37
Each
Units
Single Pole Double Throw (SPDT) On-Off-On 5 A @ 250 V ac Panel Mount Solder - - - - - 10.41mm Brass - 10mΩ
RS Stock No. 734-7123
Brand :RS PRO
THB25.94
Each
Units
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 Stock No. 394-437
Brand :RS PRO
THB301.70
Each
Units
Double Pole Double Throw (DPDT) On-Off-On 5 A @ 28 V dc Panel Mount Solder - - - - 11.91mm 17.56mm Chromium Plated Brass - 10mΩ
RS Stock No. 448-1138
Brand :RS PRO
THB139.29
Each
Units
Single Pole Double Throw (SPDT) On-Off-On 400 mA @ 20 V PCB Through Hole IP67 - - - - 12.7mm Nylon - 10mΩ
RS Stock No. 401-674
Brand :RS PRO
THB58.32
Each
Units
Single Pole Double Throw (SPDT) On-Off-On 400 mA @ 20 V PCB Through Hole IP67 - - - - 6.1mm Brass - 20mΩ
RS Stock No. 401-692
Brand :RS PRO
THB49.75
Each
Units
DPDT On-Off-On 5 A @ 28 V dc PCB Through Hole - - - - - 10.41mm Chromium Plated Brass - 10mΩ
RS Stock No. 734-7126
Brand :RS PRO
THB45.28
Each
Units
Single Pole Double Throw (SPDT) (On)-On 5 A @ 250 V ac Panel Mount Solder - - - - 6.35mm 10.41mm Chromium Plated Brass - 10mΩ
RS Stock No. 734-7006
Brand :RS PRO
THB76.66
Each
Units
Single Pole Double Throw (SPDT) (On)-On 3 A @ 250 V ac Panel Mount Solder - - - - - 11.5mm Chromium Plated Brass - 10mΩ
RS Stock No. 734-6996
Brand :RS PRO
THB92.82
Each
Units
Single Pole Double Throw (SPDT) (On)-Off-On 5 A @ 250 V ac PCB Through Hole IP67 - - - - 7.62mm Chromium Plated Brass - 10mΩ
RS Stock No. 394-425
Brand :RS PRO
THB80.35
Each
Units
Double Pole Double Throw (DPDT) On-Off-On 5 A @ 250 V ac Panel Mount Solder - - - - - 12.3mm Brass - 10mΩ
RS Stock No. 394-459
Brand :RS PRO
THB143.42
Each
Units
SPDT Latching 5 A @ 250 V ac Panel Mount Solder - - - - - 10.41mm Brass - 10mΩ
RS Stock No. 734-7034
Brand :RS PRO
THB37.63
Each
Units
Double Pole Double Throw (DPDT) (On)-On 5 A @ 250 V ac PCB Through Hole - - - - 6.35mm 10.41mm Chromium Plated Brass - 10mΩ
RS Stock No. 394-421
Brand :RS PRO
THB156.37
Each
Units
Double Pole Double Throw (DPDT) On-Off-On 5 A @ 250 V ac Panel Mount Solder - - - - - 10.41mm Brass - 10mΩ
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