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 1 - 20 of 483 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. 453-7900
Mfr. Part No.TL-22H1DKMMS1
HK$122.98
Each
units
Double Pole Double Throw (DPDT) Latching 3 A @ 250 V ac Panel Mount Solder IP65 Yes - - 12.5mm 17.5mm PC - 10mΩ
RS Stock No. 354-2973
Mfr. Part No.S-114
HK$44.69
Each
units
Double Pole Single Throw (DPST) Latching 5 A@ 125 V ac, 5 A@ 30 V dc Panel Mount Solder - - - - - 18mm Brass - 10mΩ
RS Stock No. 354-3207
Mfr. Part No.S-333T
HK$93.05
Each
units
Double Pole Double Throw (DPDT) On-Off-On 15 A@ 250 V ac, 15 A@ 30 V dc Panel Mount Screw - - - - - 17.5mm Brass - 10mΩ
RS Stock No. 354-2557
Mfr. Part No.A-13AP
HK$36.40
Each
units
Single Pole Double Throw (SPDT) On-Off-On 100 mA @ 28 V ac/dc PCB Through Hole - - - - - 10mm Brass - 50mΩ
RS Stock No. 354-3156
Mfr. Part No.S-301T
HK$64.00
Each
units
Single Pole Single Throw (SPST) Latching 6 A @ 250 V ac, 20 A @ 30 V dc Panel Mount Screw - - - - - 17.5mm Brass - 10mΩ
RS Stock No. 354-3184
Mfr. Part No.S-331T
HK$81.07
Each
units
Double Pole Single Throw (DPST) Latching 15 A@ 250 V ac, 15 A@ 30 V dc Panel Mount Screw - - - - - 17.5mm Brass - 10mΩ
RS Stock No. 475-1982
Mfr. Part No.A-12HV
HK$48.43
Each
units
SPDT Latching 100 mA @ 28 V ac/dc PCB Through Hole - - - - - 6.3mm Brass - 50mΩ
RS Stock No. 354-2664
Mfr. Part No.B-13AP
HK$26.27
Each
units
Single Pole Double Throw (SPDT) On-Off-On 100 mA @ 28 V ac/dc PCB Through Hole - - - - - 10mm Brass - 50mΩ
RS Stock No. 354-2721
Mfr. Part No.G-12AP
HK$27.34
Each
units
Single Pole Double Throw (SPDT) Latching 100 mA @ 28 V ac/dc PCB Through Hole - - - - - 3.8mm Glass Fibre Reinforced PA - 80mΩ
RS Stock No. 464-4749
Mfr. Part No.M-2032
HK$67.27
Each
units
3PDT Latching 3 A@ 30 V dc, 6 A@ 125 V ac PCB Through Hole IP67 - - - - - Chromium Plated Brass - 10mΩ
RS Stock No. 354-2822
Mfr. Part No.G-22AV
HK$39.63
Each
units
Double Pole Double Throw (DPDT) Latching 100 mA @ 28 V ac/dc PCB Through Hole - - - - - 3.8mm Glass Fibre Reinforced PA - 80mΩ
RS Stock No. 354-2658
Mfr. Part No.B-12AH
HK$35.68
Each
units
Single Pole Double Throw (SPDT) Latching 100 mA @ 28 V ac/dc PCB Through Hole - - - - - 10mm Brass - 50mΩ
RS Stock No. 464-4733
Mfr. Part No.D2-2022LP
HK$93.19
Each
units
Double Pole Double Throw (DPDT) Latching 100 mA @ 48 V ac/dc PCB Through Hole - - - - - 19.4mm Brass - 50mΩ
RS Stock No. 354-2670
Mfr. Part No.B-13AH
HK$34.06
Each
units
Single Pole Double Throw (SPDT) On-Off-On 100 mA @ 28 V ac/dc PCB Through Hole - Yes - - - 10mm Brass - 50mΩ
RS Stock No. 354-3162
Mfr. Part No.S-302T
HK$54.34
Each
units
Single Pole Double Throw (SPDT) Latching 6 A @ 250 V ac, 20 A @ 30 V dc Panel Mount Screw - - - - - 17.5mm Brass - 10mΩ
RS Stock No. 354-2995
Mfr. Part No.S-1A
HK$40.99
Each
units
- - - - Solder - - - - - 17.5mm Brass - 10mΩ
RS Stock No. 453-7966
Mfr. Part No.TL-22H2DKNWS1
HK$116.80
Each
units
Double Pole Double Throw (DPDT) Latching 3 A @ 250 V ac Panel Mount Solder IP65 Yes - - 12.5mm 17.5mm PC - 10mΩ
RS Stock No. 354-3178
Mfr. Part No.S-303T
HK$65.63
Each
units
Single Pole Double Throw (SPDT) On-Off-On 6 A @ 250 V ac, 20 A @ 30 V dc Panel Mount Screw - - - - - 17.5mm Brass - 10mΩ
RS Stock No. 354-3241
Mfr. Part No.S-822
HK$198.35
Each
units
Double Pole Double Throw (DPDT) Latching 30 A@ 250 V ac, 30 A@ 30 V dc Panel Mount Screw - - - - - 22mm Brass - 10mΩ
RS Stock No. 354-2923
Mfr. Part No.M-2015
HK$46.22
Each
units
Single Pole Double Throw (SPDT) (On)-On 3 A@ 250 V ac, 6 A@ 125 V ac Panel Mount Solder - - - - - 10.5mm Chromium Plated Brass - 10mΩ