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 819-9319
製造零件編號MTG 206 N
TWD432.00
單位
DPDT Latching 4 A @ 30 V dc Panel Mount Solder - - - - 12.5mm 11.5mm - - <20mΩ
RS庫存編號 819-9322
製造零件編號MTG 206 S
TWD490.00
單位
DPDT (On)-Off-(On) 4 A @ 30 V dc Panel Mount Solder - - - - 12.5mm 11.5mm - - <20mΩ
RS庫存編號 819-9325
製造零件編號MTG 206 PA
TWD631.00
單位
DPDT On-On-On 4 A @ 30 V dc Panel Mount Solder - - - - 12.5mm 11.5mm - - <20mΩ
RS庫存編號 819-9329
製造零件編號MTG 206 SA
TWD631.00
單位
DPDT (On)-On-(On) 4 A @ 30 V dc Panel Mount Solder - - - - 12.5mm 11.5mm - - <20mΩ
RS庫存編號 819-9313
製造零件編號MTG 206 P
TWD474.00
單位
DPDT On-Off-On 4 A @ 30 V dc Panel Mount Solder - - - - 12.5mm 11.5mm - - <20mΩ
RS庫存編號 702-3429
製造零件編號ATE2E
TWD364.00
單位
Double Pole Double Throw (DPDT) On-Off-On 50 mA @ 48 V dc PCB Through Hole - - - - - 6mm - - 50mΩ
RS庫存編號 819-9385
製造零件編號ATE 1 F-RA
TWD258.00
單位
SPDT On-(On) 50 mA @ 48 V dc PCB Through Hole - - - - - 6mm Nickel Plated Brass - <50mΩ
RS庫存編號 819-9252
製造零件編號MTA 406 R
TWD774.00
單位
4PDT On-(On) 4 A @ 30 V dc Panel Mount Solder - - - - 6.2mm 10.5mm - - <10mΩ
RS庫存編號 711-8375
製造零件編號TST 1D-RA
TWD167.00
單位
Single Pole Double Throw (SPDT) Latching 400 mA @ 20 V PCB Through Hole - - - - - 6.1mm Chromium Plated Brass - 20mΩ
RS庫存編號 199-0982
製造零件編號MTA206T
TWD272.00
單位
Double Pole Double Throw (DPDT) On-Off-(On) 4 A @ 30 V dc Panel Mount Solder - - - - - 10.5mm - - 10mΩ
RS庫存編號 819-9316
製造零件編號MTG 106 H
TWD442.00
單位
SPDT On-Off-(On) 4 A @ 30 V dc Panel Mount Solder - - - - 12.5mm 11.5mm - - <20mΩ
RS庫存編號 819-9394
製造零件編號ATE 1 G-RA
TWD296.00
單位
SPDT (On)-Off-(On) 50 mA @ 48 V dc PCB Through Hole - - - - - 6mm Nickel Plated Brass - <50mΩ
RS庫存編號 819-9331
製造零件編號MTG 406 N
TWD765.00
單位
4PDT Latching 4 A @ 30 V dc Panel Mount Solder - - - - 12.5mm 11.5mm - - <20mΩ
RS庫存編號 819-9388
製造零件編號ATE 2 F
TWD330.00
單位
DPDT On-(On) 50 mA @ 48 V dc PCB Through Hole - - - - - 6mm Nickel Plated Brass - <50mΩ
RS庫存編號 819-9234
製造零件編號MTA 106 G
TWD371.00
單位
SPDT (On)-Off-(On) 4 A @ 30 V dc Panel Mount Solder - - - - 6.2mm 10.5mm - - <10mΩ
RS庫存編號 819-9278
製造零件編號MTE 106 F
TWD430.00
單位
SPDT On-(On) 4 A @ 30 V dc Panel Mount Solder IP67 - 6.1mm 5.5mm - 10.5mm - - <10mΩ
RS庫存編號 819-9256
製造零件編號MTA 406 S
TWD627.00
單位
4PDT (On)-Off-(On) 4 A @ 30 V dc Panel Mount Solder - - - - 6.2mm 10.5mm - - <10mΩ
RS庫存編號 819-9338
製造零件編號MTG 306 D
TWD655.00
單位
3PDT Latching 4 A @ 30 V dc Panel Mount Solder - - - - 12.5mm 11.5mm - - <20mΩ
RS庫存編號 199-0948
製造零件編號MTA206N
TWD327.00
單位
Double Pole Double Throw (DPDT) Latching 4 A @ 30 V dc Panel Mount Solder - - - - - 10.5mm - - 10mΩ
RS庫存編號 702-3410
製造零件編號MTW206P
TWD440.00
單位
Double Pole Double Throw (DPDT) On-Off-On 4 A @ 30 V dc Panel Mount Solder - - - - - 17mm - - 10mΩ