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 417-5473
製造零件編號3641NF/2
BrandAPEM
HK$161.94
單位
Double Pole Single Throw (DPST) Latching 12 A Panel Mount Solder, Tab IP67 - - - - 17.5mm Brass 28V dc 10mΩ
RS庫存編號 377-9658
製造零件編號5638A
BrandAPEM
HK$26.27
單位
Single Pole Single Throw (SPST) (On)-Off-On 4 A @ 30 V dc Panel Mount Solder - - - - - - Brass - 10mΩ
RS庫存編號 823-5119
製造零件編號01818.1102-00
BrandMarquardt
HK$42.86
單位
Single Pole Double Throw (SPDT) (On)-Off-On 6 A @ 250 V ac Panel Mount Quick Connect IP40 - 18.5mm 13.2mm - 14mm PA - <100mΩ
RS庫存編號 394-431
BrandRS PRO
HK$59.78
單位
Double Pole Double Throw (DPDT) Latching 5 A @ 28 V dc Panel Mount Solder - - - - 11.91mm 17.56mm Chromium Plated Brass - 10mΩ
RS庫存編號 222-819
製造零件編號ET115A12-Z
HK$31.44
單位
SPST On-Off 10 A@ 250 V ac, 15 A@ 125 V ac Panel Mount Solder Tag - - - - - 17mm - - 20mΩ
RS庫存編號 879-8332
製造零件編號2M1-SP1-T1-B1-M2QE
HK$19.85
單位
Single Pole Single Throw (SPST) Latching 5 A Panel Mount Pc Pin - - - - 6.35 (1/4 Bushing) mm, 11.91 (15/32 Bushing) mm 10.4mm Brass 250V ac 10mΩ
RS庫存編號 317-005
製造零件編號FTE0904
HK$45.29
單位
Single Pole Double Throw (SPDT) On-Off-On 4 A @ 30 V dc Panel Mount Through Hole - - - - 6.2mm 10.5mm Chrome Plated Brass - 10mΩ
RS庫存編號 762-5246
製造零件編號ATE2P-6M3-10-Z
HK$32.94
單位
Double Pole Double Throw (DPDT) On-Off-On 50 mA@ 48 V ac/dc PCB Right Angle Through Hole - - - - - 6mm - - 50mΩ
RS庫存編號 512-926
製造零件編號T9-CS2-23
BrandOtto
HK$261.33
單位
Double Pole Double Throw (DPDT) Latching 20 A @ 28 V dc Panel Mount Screw - - - - - 17.53mm Stainless Steel - -
RS庫存編號 745-5716
製造零件編號2-6437630-8
HK$148.64
單位
Three Pole Double Throw (3PDT) Latching 6 A @ 250 V ac Panel Mount Through Hole - - - - 6.2mm 10.5mm Chromium Plated Brass - 10mΩ
RS庫存編號 745-5612
製造零件編號4-6437630-6
HK$100.94
單位
Double Pole Double Throw (DPDT) On-Off-On 6 A @ 250 V ac Panel Mount Through Hole - - - - 6.2mm 10.5mm Chromium Plated Brass - 10mΩ
RS庫存編號 266-2234
製造零件編號A4TP15W04
HK$574.72
單位
Four Pole Double Throw (4PDT) On-Off-On 20 A @ 250 V ac Panel Mount Solder, Tab IP67 - - - - 17.5mm Brass - 10mΩ
RS庫存編號 664-288
製造零件編號TL36WW050
BrandAPEM
HK$38.82
單位
SP On-On 400 mA @ 20 V PCB Through Hole - - - - - 5.3mm Brass - 20mΩ
RS庫存編號 354-3241
製造零件編號S-822
HK$194.95
單位
Double Pole Double Throw (DPDT) Latching 30 A@ 250 V ac, 30 A@ 30 V dc Panel Mount Screw - - - - - 22mm Brass - 10mΩ
RS庫存編號 197-7939
製造零件編號527
BrandAPEM
HK$54.71
單位
Double Pole Single Throw (DPST) Latching 6 A @ 30 V dc Panel Mount Screw - - - - - 15mm - - 10mΩ
RS庫存編號 881-1192
製造零件編號DA100-BB-B
HK$18.542
/個 (每包:10個)
單位
Single Pole Single Throw (SPST) Latching 10 A Panel Mount Tab - - - - 12.7mm 17.44mm Nylon 250V ac -
RS庫存編號 570-095
製造零件編號0132.0101
BrandMarquardt
HK$59.39
單位
Double Pole Single Throw (DPST) Latching 2 A @ 250 V ac Panel Mount Solder - - - - 12mm 12.5mm Polyamide - -
RS庫存編號 317-083
製造零件編號FTN09G04
HK$111.15
單位
Double Pole Double Throw (DPDT) Latching 14 mA @ 28 V dc Panel Mount Through Hole - - - - 6.2mm 10.5mm Chrome Plated Brass - 20mΩ
RS庫存編號 692-5251
製造零件編號5639ADBGK3V
BrandAPEM
HK$133.10
單位
Single Pole Double Throw (SPDT) Locking lever, On-Off-On 4 A @ 30 V dc Panel Mount Solder - - - - 6.5mm 15.1mm Nickel Plated Brass - 10mΩ
RS庫存編號 710-9561
製造零件編號5-1825137-3
HK$39.88
單位
Single Pole Single Throw (SPST) (On)-Off-On 400 mA @ 20 V Panel Mount Through Hole - - - - - 17.5mm Phenolic - 10mΩ