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 Stock No. 812-6567
Mfr. Part No.1NT1-1
BrandHoneywell
kr 148,95
Each
Units
SPDT On-Off-On 15 A @ 115 V ac, 20 A @ 28 V dc, 6 A @ 230 V ac Panel Mount Screw IP67, IP68 - - - 12.4mm 17mm Metal, Plastic - -
RS Stock No. 187-3525
Mfr. Part No.2MT1-8
BrandHoneywell
kr 196,31
Each
Units
DPDT (On)-On 5 A Panel Mount Solder IP67, IP68 - 11.43mm - 12.45mm 16.87mm - 28V dc -
RS Stock No. 842-5044
Mfr. Part No.61NT1-2
BrandHoneywell
kr 198,20
Each
Units
SPST Latching 15 A @ 115 V ac, 20 A @ 28 V dc, 6 A @ 230 V ac Panel Mount Screw IP67, IP68 - - - 12.4mm 17mm Metal, Plastic - -
RS Stock No. 187-3526
Mfr. Part No.2MT2-1
BrandHoneywell
kr 271,78
Each
Units
DPDT Latching 100 mA Panel Mount Solder IP67, IP68 - 11.43mm - 12.45mm 16.87mm - 28V dc -
RS Stock No. 187-3508
Mfr. Part No.1MT1-2
BrandHoneywell
kr 179,96
Each
Units
SPST Latching 5 A Panel Mount Solder IP67, IP68 - 11.43mm - 12.45mm 16.87mm - 28V dc -
RS Stock No. 187-3513
Mfr. Part No.1MT1-8
BrandHoneywell
kr 135,11
Each
Units
SPDT Momentary 5 A Panel Mount Solder IP67, IP68 - 11.43mm - 12.45mm 16.87mm - 28V dc -
RS Stock No. 187-3490
Mfr. Part No.1NT1-8
BrandHoneywell
kr 166,18
Each
Units
SPDT (On)-On 10 A Panel Mount Screw IP67, IP68 - 11.4mm - 12.4mm 17mm - 250 V dc, 277 V ac -
RS Stock No. 842-4805
Mfr. Part No.2TL1-7E
BrandHoneywell
kr 443,37
Each
Units
DPDT (On)-Off-(On) 11 A @ 115 V ac, 18 A @ 28 V dc, 6 A @ 230 V ac Panel Mount Screw - - - - - 17mm Metal, Plastic - -
RS Stock No. 187-3500
Mfr. Part No.1TL1-6
BrandHoneywell
kr 192,14
Each
Units
SPST Momentary 10 A Panel Mount Screw - - 11.4mm - 12.4mm 17mm - 250 V dc, 277 V ac -
RS Stock No. 842-4968
Mfr. Part No.4TL1-3
BrandHoneywell
kr 443,37
Each
Units
4PST Latching 15 A @ 115 V ac, 20 A @ 28 V dc, 6 A @ 230 V ac Panel Mount Screw - - - - - 17mm Metal, Plastic - -
RS Stock No. 842-4754
Mfr. Part No.2TL1-3G
BrandHoneywell
kr 410,56
Each
Units
DPDT Latching 15 A @ 115 V ac, 20 A @ 28 V dc, 6 A @ 230 V ac Panel Mount Screw - - - - - 17mm Metal, Plastic - -
RS Stock No. 187-3509
Mfr. Part No.1MT1-3
BrandHoneywell
kr 179,96
Each
Units
SPDT Latching 5 A Panel Mount Solder IP67, IP68 - 11.43mm - 12.45mm 16.87mm - 28V dc -
RS Stock No. 187-3514
Mfr. Part No.1MT2-1
BrandHoneywell
kr 196,53
Each
Units
SPDT On-Off-On 100 mA Panel Mount Solder IP67, IP68 - 11.43mm - 12.45mm 16.87mm - 28V dc -
RS Stock No. 187-3495
Mfr. Part No.1TL1-1
BrandHoneywell
kr 192,14
Each
Units
SPDT On-Off-On 15 A Panel Mount Screw - - 11.4mm - 12.4mm 17mm - 250 V dc, 277 V ac -
RS Stock No. 842-0639
Mfr. Part No.2NT1-12
BrandHoneywell
kr 218,24
Each
Units
DPDT On-On-On 15 A @ 115 V ac, 20 A @ 28 V dc, 6 A @ 230 V ac Panel Mount Screw IP67, IP68 - - - 12.4mm 17mm Metal, Plastic - -
RS Stock No. 842-0676
Mfr. Part No.2NT91-7
BrandHoneywell
kr 263,91
Each
Units
DPDT (On)-Off-(On) 11 A @ 115 V ac, 18 A @ 28 V dc, 6 A @ 230 V ac Panel Mount Tab IP67, IP68 - - - 12.4mm 17mm Metal, Plastic - -
RS Stock No. 812-6585
Mfr. Part No.2NT1-3
BrandHoneywell
kr 144,86
Each
Units
DPDT Latching 15 A @ 115 V ac, 20 A @ 28 V dc, 6 A @ 230 V ac Panel Mount Screw IP67, IP68 - - - 12.4mm 17mm Metal, Plastic - -
RS Stock No. 842-4808
Mfr. Part No.2TL1-7
BrandHoneywell
kr 289,41
Each
Units
DPDT (On)-Off-(On) 11 A @ 115 V ac, 18 A @ 28 V dc, 6 A @ 230 V ac Panel Mount Screw - - - - - 17mm Metal, Plastic - -
RS Stock No. 187-3529
Mfr. Part No.2MT2-3
BrandHoneywell
kr 229,79
Each
Units
DPDT Latching 100 mA Panel Mount Solder IP67, IP68 - 11.43mm - 12.45mm 16.87mm - 28V dc -
RS Stock No. 187-3497
Mfr. Part No.1TL1-3
BrandHoneywell
kr 191,22
Each
Units
SPDT Latching 15 A Panel Mount Screw - - 11.4mm - 12.4mm 17mm - 250 V dc, 277 V ac -