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.
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.
  • 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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Part Details Brand 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 Contact Material Panel Cut Out Size Mechanical Life Standards Met Operating Temperature Range Minimum Operating Temperature Maximum Operating Temperature
RS PRO Single Pole Double Throw (SPDT) Toggle Switch, Latching, Panel Mount RS Pro Single Pole Double Throw (SPDT) Latching 2 A Panel Mount Solder - - - - 6.35mm 10.41mm Chromium Plated Brass - 10mΩ Silver Plated Brass 6.35mm 40000Cycles RoHS & Lead Free -30 → +85°C -30°C +85°C
Arcolectric Double Pole Single Throw (DPST) Toggle Switch, Latching, IP40, Panel Mount Arcolectric Double Pole Single Throw (DPST) Latching 20 A @ 250 V ac Panel Mount Solder, Tab IP40 - - - 12.7mm 16.4mm PC - 100mΩ Silver Alloy 12.7mm - - Maximum of +85°C - +85°C
RS PRO Single Pole Double Throw (SPDT) Toggle Switch, Latching, Panel Mount RS Pro Single Pole Double Throw (SPDT) Latching 5 A @ 28 V dc Panel Mount Solder - - - - 6.35mm 10.41mm Chromium Plated Brass - 10mΩ Silver Plated Brass (Movable) 6.35mm - UL Listed -30 → +85°C -30°C +85°C
APEM SP Toggle Switch, On-On, Panel Mount Apem SP On-On 4 A @ 30 V dc Panel Mount Solder - - - - - 11.4mm Brass - 10mΩ Silver - 100000Operations - -40 → +85°C -40°C +85°C
APEM Single Pole Single Throw (SPST) Toggle Switch, Latching, Panel Mount Apem Single Pole Single Throw (SPST) Latching 4 A @ 30 V dc Panel Mount Solder - - - - - - Brass - 10mΩ Silver - 100000Operations - -40 → +85°C -40°C +85°C
RS PRO Single Pole Double Throw (SPDT) Toggle Switch, Latching, PCB RS Pro Single Pole Double Throw (SPDT) Latching 5 A @ 250 V ac PCB Through Hole - - - - - 10.41mm Brass - 10mΩ Copper Alloy - 40000Cycles RoHS & Lead Free -30 → +85°C -30°C +85°C
Arcolectric Single Pole Single Throw (SPST) Toggle Switch, Latching, IP40, Panel Mount Arcolectric Single Pole Single Throw (SPST) Latching 16 A @ 250 V ac Panel Mount Solder, Tab IP40 - - - 12.7mm 16.4mm PC - 100mΩ Silver Alloy 12.7mm - - Maximum of +85°C - +85°C
RS PRO Double Pole Double Throw (DPDT) Toggle Switch, Latching, Panel Mount RS Pro Double Pole Double Throw (DPDT) Latching 5 A @ 250 V ac Panel Mount Solder - - - - - 12.3mm Brass - 10mΩ Copper Alloy - 40000Cycles RoHS & Lead Free -30 → +85°C -30°C +85°C
RS PRO Single Pole Double Throw (SPDT) Toggle Switch, Latching, Panel Mount RS Pro Single Pole Double Throw (SPDT) Latching 5 A @ 250 V ac Panel Mount Solder - - - - - 10.41mm Brass - 10mΩ Copper Alloy - 40000Cycles RoHS & Lead Free -30 → +85°C -30°C +85°C
SPDT on-on vertical toggle switch,0.4VA
  • RS Stock No. 664-200
  • Brand APEM
  • Mfr. Part No. TL36P0050
Apem SP On-On 400 mA @ 20 V PCB Through Hole - - - - - 5.3mm Brass - 20mΩ Gold Plated Brass - - - -30 → +85°C -30°C +85°C
RS PRO Single Pole Single Throw (SPST) Toggle Switch, Latching, Panel Mount RS Pro 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 Silver Gold Plated Brass 12.7 x 6.86mm 40000Cycles RoHS & Lead Free -30 → +85°C -30°C +85°C
RS PRO Double Pole Double Throw (DPDT) Toggle Switch, Latching, PCB RS Pro Double Pole Double Throw (DPDT) Latching 5 A @ 250 V ac PCB Through Hole - - - - - 10.41mm Brass - 10mΩ Copper Alloy - 40000Cycles RoHS & Lead Free -30 → +85°C -30°C +85°C
APEM Single Pole Single Throw (SPST) Toggle Switch, Latching, Panel Mount Apem Single Pole Single Throw (SPST) Latching 15 A @ 250 V ac Panel Mount Tab - - - - - 17.5mm - - 10mΩ Silver - - - -20 → +55°C -20°C +55°C
RS PRO Single Pole Double Throw (SPDT) Toggle Switch, Latching, IP67, PCB RS Pro Single Pole Double Throw (SPDT) Latching 400 mA @ 20 V PCB Through Hole IP67 - - - - 6.1mm Brass - 20mΩ Gold - 30000Cycles RoHS & Lead Free -30 → +85°C -30°C +85°C
APEM Single Pole Single Throw (SPST) Toggle Switch, On-Off-On, Panel Mount Apem Single Pole Single Throw (SPST) On-Off-On 4 A @ 30 V dc Panel Mount Solder - - - - - - Brass - 10mΩ Silver - 100000Operations - -40 → +85°C -40°C +85°C
APEM Double Pole Single Throw (DPST) Toggle Switch, Latching, Panel Mount Apem Double Pole Single Throw (DPST) Latching 4 A @ 30 V dc Panel Mount Solder - - - - - - Brass - 10mΩ Silver - 100000Operations - -40 → +85°C -40°C +85°C
Arcolectric Single Pole Double Throw (SPDT) Toggle Switch, Latching, IP40, Panel Mount Arcolectric Single Pole Double Throw (SPDT) Latching 20 A @ 250 V ac Panel Mount Solder, Tab IP40 - - - 12.7mm 16.4mm PC - 100mΩ Silver Alloy 12.7mm - - Maximum of +85°C - +85°C
Apem Double Pole Single Throw (DPST) Toggle Switch, Latching, Panel Mount
  • RS Stock No. 174-6397
  • Brand APEM
  • Mfr. Part No. 641H/2 250 VAC
Apem Double Pole Single Throw (DPST) Latching 10 A @ 24 V dc Panel Mount Tab - - - - 12.5mm 17.5mm Nickel Plated Brass - 10mΩ Silver Nickel Alloy 12.5mm - - -20 → +55°C -20°C +55°C
Arcolectric Single Pole Single Throw (SPST) Toggle Switch, Latching, Panel Mount Arcolectric Single Pole Single Throw (SPST) Latching 16 A @ 250 V ac Panel Mount Tab - - - - 12.7mm 17.5mm Metal - - - 12.7mm - - - - -
RS PRO Single Pole Double Throw (SPDT) Toggle Switch, Latching, PCB RS Pro Single Pole Double Throw (SPDT) Latching 5 A @ 250 V ac PCB Through Hole - - - - 6.35mm 10.41mm Chromium Plated Brass 250V ac 10mΩ Silver Plated Brass 6.35mm 40000Cycles RoHS & Lead Free -30 → +85°C -30°C +85°C
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