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.

...
Read more Read less

Filters

Viewing 41 - 60 of 1759 products
Results per page
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 Stock No. 734-7139
BrandRS PRO
£2.65
Each
Units
Single Pole Double Throw (SPDT) On-Off-On 5 A @ 250 V ac Panel Mount Solder - - - - 11.91mm 17.56mm Chromium Plated Brass - 10mΩ
RS Stock No. 448-1059A
BrandRS PRO
£4.226
Each (In a Pack of 25)
Units
Single Pole Double Throw (SPDT) Latching 3 A @ 28 V dc Panel Mount Solder - - - - - 9.4mm Brass - 20mΩ
RS Stock No. 448-1059
BrandRS PRO
£5.97
Each
Units
Single Pole Double Throw (SPDT) Latching 3 A @ 28 V dc Panel Mount Solder - - - - - 9.4mm Brass - 20mΩ
RS Stock No. 394-453
BrandRS PRO
£3.10
Each
Units
Double Pole Double Throw (DPDT) Latching 5 A @ 28 V dc Panel Mount Solder - - - - 6.35mm 21mm Chromium Plated Brass - 10mΩ
RS Stock No. 820-0504
BrandRS PRO
£7.59
Each
Units
Double Pole Double Throw (DPDT) Latching 5 A @ 250 V ac PCB Solder Lug IP67 - - - - 18mm Brass - 10mΩ
RS Stock No. 448-0781
BrandRS PRO
£5.19
Each
Units
Single Pole Double Throw (SPDT) Latching 400 mA @ 20 V PCB Through Hole - - - - - 5.33mm Chrome Plated Brass - 20mΩ
RS Stock No. 734-6968
BrandRS PRO
£1.09
Each
Units
Single Pole Double Throw (SPDT) Latching 5 A @ 250 V ac PCB Solder IP67 - - - - 12.7mm Chromium Plated Brass - 10mΩ
RS Stock No. 734-7088
BrandRS PRO
£2.58
Each
Units
Single Pole Double Throw (SPDT) Latching 5 A @ 250 V ac Panel Mount Solder - - - - 6.35mm 10.41mm Chromium Plated Brass - 10mΩ
RS Stock No. 734-7047
BrandRS PRO
£2.65
Each
Units
Double Pole Double Throw (DPDT) On-Off-On 5 A @ 250 V ac Panel Mount Solder - - - - 6.35mm 10.41mm Chromium Plated Brass 250V ac 10mΩ
RS Stock No. 734-7034
BrandRS PRO
£2.55
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. 734-6940
BrandRS PRO
£2.87
Each
Units
Double Pole Double Throw (DPDT) Latching 400 mA @ 20 V PCB Solder IP67 - - - - 12.7mm Chromium Plated Brass - 10mΩ
RS Stock No. 734-7202
BrandRS PRO
£3.05
Each
Units
Double Pole Double Throw (DPDT) On-On-On 3 A @ 120 V ac Panel Mount Solder - - - - 4.95mm 9.4mm Chromium Plated Brass - 20mΩ
RS Stock No. 734-7145
BrandRS PRO
£2.65
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. 734-7255
BrandRS PRO
£1.96
Each
Units
Single Pole Double Throw (SPDT) On-Off-On 400 mA @ 20 V PCB Through Hole IP67 - - - - 3.8mm Glass Filled Nylon - 100mΩ
RS Stock No. 734-7230
BrandRS PRO
£1.33
Each
Units
Double Pole Double Throw (DPDT) Latching 400 mA @ 20 V PCB Through Hole IP67 - - - - 6mm Chromium Plated Brass - 50mΩ
RS Stock No. 394-421
BrandRS PRO
£5.14
Each
Units
Double Pole Double Throw (DPDT) On-Off-On 5 A @ 250 V ac Panel Mount Solder - - - - - 10.41mm Brass - 10mΩ
RS Stock No. 734-7129
BrandRS PRO
£2.65
Each
Units
Single Pole Double Throw (SPDT) (On)-On 5 A @ 250 V ac Panel Mount Solder - - - - 6.35mm 12.3mm Chromium Plated Brass - 10mΩ
RS Stock No. 734-6978
BrandRS PRO
£3.03
Each
Units
Single Pole Double Throw (SPDT) Latching 5 A @ 250 V ac Panel Mount Solder IP67 - - - - 12.7mm Chromium Plated Brass - 10mΩ
RS Stock No. 734-7141
BrandRS PRO
£2.65
Each
Units
Single Pole Double Throw (SPDT) (On)-Off-(On) 5 A @ 250 V ac PCB Through Hole - - - - 6.35mm 10.41mm Chromium Plated Brass - 10mΩ
RS Stock No. 734-7040
BrandRS PRO
£2.00
Each
Units
Double Pole Double Throw (DPDT) On-Off-On 400 mA @ 20 V PCB Through Hole - - - - 6.35mm 5.08mm Chromium Plated Brass - 10mΩ
Related Products
The NKK G3T Series of process sealed ultra-miniature ...
Description:
The NKK G3T Series of process sealed ultra-miniature SMT toggles allow high density mounting. Heat resistant resin is used for the housing, base and lever allowing vapour phase and infrared convection reflow soldering. The NKK G3T Series are award winning STC contact mechanisms with benefits unavailable in conventional mechanisms: smoother ...
The NKK M Series of miniature toggle switches ...
Description:
The NKK M Series of miniature toggle switches are of antirotation design, standard on noncylindrical levers, mates toggle and bushing. The toggles have epxoy sealed terminals that prevent entry of solder flux and other contaminants. The NKK M Series also have an antijamming design protecting the contacts from damage due ...
NKK's full line of toggles features both PC ...
Description:
NKK's full line of toggles features both PC board and panel mounting options available with a full array of actuator options and terminations to meet virtually any application. Subminiature and ultra-miniature to dual seal waterproof and high-capacity toggle switches are offered. Matching indicators are available. Designed to perform and withstand ...
MICRO SWITCH MT Series Miniature Toggle Switch, 1 ...
Description:
MICRO SWITCH MT Series Miniature Toggle Switch, 1 pole, 3 position, Solder terminals, Silver Contacts, SPDT, Standard Lever. Honeywell MICRO SWITCH MT Series miniature toggle switches are designed to meet the need for a rugged, cost-effective toggle switch. Quality construction features include a seal between the toggle lever and bushing, ...