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 879-8421
製造零件編號61115929-0-0-N
HK$39.741
/個 (每包:52個)
單位
DPST Latching 4 A @ 250 V ac Panel Mount Solder - - 19.8mm 12.9mm 12.7mm - - - -
RS庫存編號 879-8263
製造零件編號2GK57-73-XA
HK$88.77
單位
DPST Latching 15 A Panel Mount Tab - - - - 12.7mm 17.44mm Brass 250V ac -
RS庫存編號 879-8332
製造零件編號2M1-SP1-T1-B1-M2QE
HK$28.75
單位
SPST Latching 5 A Panel Mount Through Hole - - - - 6.35 (1/4 Bushing) mm, 11.91 (15/32 Bushing) mm 10.4mm Brass 250V ac 10mΩ
RS庫存編號 881-1202
製造零件編號DA100-PB-B
HK$21.91
/個 (每包:10個)
單位
SPST Latching 10 A Panel Mount Tab - - - - 12.7mm 17.44mm Nylon 250V ac -
RS庫存編號 881-1192
製造零件編號DA100-BB-B
HK$20.39
/個 (每包:10個)
單位
SPST Latching 10 A Panel Mount Tab - - - - 12.7mm 17.44mm Nylon 250V ac -
RS庫存編號 879-8326
製造零件編號2M1-DP1-T1-B1-M2QE
HK$47.43
單位
DPST Latching 5 A Panel Mount Through Hole - - - - 6.35 (1/4 Bushing) mm, 11.91 (15/32 Bushing) mm 10.4mm Brass 250V ac 10mΩ
RS庫存編號 881-1448
製造零件編號IM254-73
HK$191.85
單位
4PDT On-Off-On 15 A Panel Mount Screw - - - - 12.7mm 17.44mm - 250V ac -
RS庫存編號 879-8323
製造零件編號2M1-DP1-T1-B1-M1QE
HK$39.62
單位
DPST Latching 5 A Panel Mount Solder - - - - 6.35 (1/4 Bushing) mm, 11.91 (15/32 Bushing) mm 10.4mm Brass 250V ac 10mΩ
RS庫存編號 879-8203
製造零件編號2FA53-73/TABS
HK$21.17
/個 (每包:10個)
單位
SPST Latching 15 A Panel Mount Solder - - - - 12.7mm 17.44mm Brass 250V ac -
RS庫存編號 879-8294
製造零件編號2GL57-73-XA
HK$50.74
單位
DPDT Latching 15 A Panel Mount Tab - - - - 12.7mm 17.44mm Brass 250V ac -
RS庫存編號 881-1546
製造零件編號LT-1514-610-012
HK$137.46
單位
SPST Latching 15 A Panel Mount Tab - Yes - - 12.7mm 18.16mm - 15 28 V dc, 250 V ac -
RS庫存編號 879-8354
製造零件編號2M1-SP3-T1-B1-M2QE
HK$36.28
單位
SPST On-Off-On 5 A Panel Mount Through Hole - - - - 6.35 (1/4 Bushing) mm, 11.91 (15/32 Bushing) mm 10.4mm Brass 250V ac 10mΩ
RS庫存編號 879-8317
製造零件編號2GM57-73-XA
HK$98.92
單位
DPDT On-Off-On 15 A Panel Mount Tab - - - - 12.7mm 17.44mm Brass 250V ac -
RS庫存編號 879-8339
製造零件編號2M1-SP1-T1-B1-M1QE
HK$28.75
/個 (每包:10個)
單位
SPST Latching 5 A Panel Mount Solder - - - - 6.35 (1/4 Bushing) mm, 11.91 (15/32 Bushing) mm 10.4mm Brass 250V ac 10mΩ
RS庫存編號 879-8121
製造零件編號110-73
HK$41.16
單位
SPST Latching 6 A Panel Mount Solder - - - - 12.7mm 17.46mm - 250V ac -
RS庫存編號 879-8351
製造零件編號2M1-SP3-T1-B1-M1QE
HK$36.45
單位
SPST On-Off-On 5 A Panel Mount Solder - - - - 6.35 (1/4 Bushing) mm, 11.91 (15/32 Bushing) mm 10.4mm Brass 250V ac 10mΩ
RS庫存編號 879-8137
製造零件編號110-S-73
HK$52.37
單位
SPST Latching 6 A Panel Mount Screw - - - - 12.7mm 17.46mm - 250V ac -
RS庫存編號 879-8196
製造零件編號2FA51-73
HK$52.54
單位
SPST Latching 15 A Panel Mount Solder - - - - 12.7mm 17.44mm Brass 250V ac -
RS庫存編號 879-8358
製造零件編號2M1-SP4-T1-B1-M1QE
HK$25.16
/個 (每包:500個)
單位
SPST On-Off-On 5 A Panel Mount Solder - - - - 6.35 (1/4 Bushing) mm, 11.91 (15/32 Bushing) mm 10.4mm Brass 250V ac 10mΩ
RS庫存編號 879-8500
製造零件編號6FA54-73
HK$64.01
單位
SPST Latching 15 A Panel Mount Screw - - - - 12.7mm 17.44mm - 250V ac -