Switches

Switches are commonly used in electronic circuits. They enable control of the circuit by switching it on/off or controlling a range of other features.

How do they work?

Electronic switches are binary devices which sit within a circuit to control the flow of electricity. They work by interrupting the flow of electrons and switching the circuit on or off.

Switches contain terminals which connect to metal contacts. When the terminal and contact are touching, the switch is closed and the current can pass through. When the terminal and contact are not touching, the switch is open and the current cannot pass through the circuit.

What are Poles Throws?

The number of circuits controlled by a switch is referred to as "poles". The number of positions that the switch can adopt is called "throws". The combinations of these are:

  • SPST (Single Pole Single Throw)
  • SPDT (Single Pole Double Throw)
  • DPST (Double Pole Single Throw)
  • DPST (Double Pole Double Throw)

What types of switches are there?

The type of switch you require depends on the connections you wish to make within your circuit. Switches are often grouped by the way they are operated, for example, rocker switches that rock side to side. Alternatively, they are classified by their application, for example, keypad switches are used with keypads. Here are some examples of switch types:

  • Detector
  • DIP/SIP
  • Foot
  • Hall Effect
  • Joystick
  • Key
  • Keyboard/Keypad
  • Piezo
  • Microswitches
  • Rotary
  • Push Button
  • Toggle
Capacitive, Magnetic and Piezo Switches
Capacitive, Magnetic and Piezo Switches
DIP & Rotary Encoded Switches
DIP & Rotary Encoded Switches
Domestic Installation Switches
Domestic Installation Switches
Foot Switches & Components
Foot Switches & Components
Joysticks & Components
Joysticks & Components
Key Switches & Selector Switches
Key Switches & Selector Switches
Keyboard & Keypad Switches
Keyboard & Keypad Switches
Limit & Position Switches
Limit & Position Switches
Micro Switches & Detector Switches
Micro Switches & Detector Switches
Push Button Switches & Components
Push Button Switches & Components
Rocker Switches & Components
Rocker Switches & Components
Rope Pull Switches & Components
Rope Pull Switches & Components
Rotary Switches & Components
Rotary Switches & Components
Safety Enabling & Control Switches
Safety Enabling & Control Switches
Safety Interlock Switches & Components
Safety Interlock Switches & Components
Switch Disconnectors & Components
Switch Disconnectors & Components
Toggle Switches & Slide Switches
Toggle Switches & Slide Switches

51448 Products showing for Switches

1 of 999+
In Stock
RS PRO Push Button Switch, Momentary, Panel Mount, 13.6mm Cutout, SPST, 32V ac, IP67
  • RS Stock No. 144-4359
Each
Kr. 53,50(exc. VAT)
In Stock
Honeywell Bi-Metallic Thermostat, Opens at +20°C, Closes at +35°C, +186°C Max, NO, Automatic Reset
  • RS Stock No. 229-5935
  • Mfr. Part No. 2455RP-91000442
Each
Kr. 439,16(exc. VAT)
In Stock
Better World
Schneider Electric, iIL, DIN Rail Red/Green LED Indicator, IP2X, 230V ac
  • RS Stock No. 791-3114
  • Mfr. Part No. A9E18325
Each
Kr. 475,45(exc. VAT)
In Stock
Eaton 3P+N Pole Surface Mount Isolator Switch - 32A Maximum Current, 15kW Power Rating, IP65
  • RS Stock No. 180-9311
  • Mfr. Part No. 207333 P1-32/I2-SI/N
Each
Kr. 1 513,63(exc. VAT)
In Stock
Better World
Schneider Electric Harmony XB5 Series Twist Release Emergency Stop Push Button, Panel Mount, 22mm Cutout, IP66, IP67,
  • RS Stock No. 426-2808
  • Mfr. Part No. ZB5AS844
Each
Kr. 270,33(exc. VAT)
In Stock
Kraus & Naimer, 3P 2 Position Double Throw Cam Switch, 10A
  • RS Stock No. 340-279
  • Mfr. Part No. CG4.A222/GBA125.EF
Each
Kr. 458,84(exc. VAT)
In Stock
KNITTER-SWITCH Push Button Switch, Momentary, PCB, DPDT
  • RS Stock No. 913-8895
  • Mfr. Part No. MPSA-22E08-0150
Each (In a Bag of 5)
Kr. 8,06(exc. VAT)
In Stock
Better World
Schneider Electric Harmony Series Green, Red Illuminated Momentary Push Button Head, 22mm Cutout, IP66, IP67, IP69K
  • RS Stock No. 122-2312
  • Mfr. Part No. ZB4BW7A3741
Each
Kr. 265,18(exc. VAT)
In Stock
Better World
Schneider Electric Harmony XB4 Series Contact Block, 600V ac, SPST
  • RS Stock No. 331-0489
  • Mfr. Part No. ZBE102
Each
Kr. 56,74(exc. VAT)
In Stock
Molveno Illuminated DPST, On-Off Rocker Switch Panel Mount
  • RS Stock No. 793-2522
  • Mfr. Part No. SX8211881G000000
Each
Kr. 36,29(exc. VAT)
In Stock
Kraus & Naimer Cam Switch Handle
  • RS Stock No. 350-0840
  • Mfr. Part No. S0E.T161*GBA002
Each
Kr. 65,51(exc. VAT)
In Stock
RS PRO Bi-Metallic Thermostat, Opens at 60°C, Closes at 45°C, +180°C Max, NC, Automatic Reset
  • RS Stock No. 222-8227
Each
Kr. 104,90(exc. VAT)
In Stock
TE Connectivity 4 Way Through Hole DIP Switch 4PST
  • RS Stock No. 639-4727
  • Mfr. Part No. ADE0404
Each
Kr. 13,20(exc. VAT)
In Stock
Better World
Siemens SIRIUS ACT 3SU10 Series 2 Position Selector Switch Head
  • RS Stock No. 183-7269
  • Mfr. Part No. 3SU1002-2BC10-0AA0
Each
Kr. 176,78(exc. VAT)
In Stock
Better World
Schneider Electric, Harmony XB5, Panel Mount Green Universal LED Pilot Light, 22mm Cutout, IP66, IP67, IP69(IP69K),
  • RS Stock No. 609-6243
  • Mfr. Part No. XB5AVB3
Each
Kr. 218,39(exc. VAT)
In Stock
RS PRO 2 Position Selector Switch Head, 22mm Cutout, Green Handle
  • RS Stock No. 188-1156
Each
Kr. 103,34(exc. VAT)
In Stock
ABB Jokab Non-Contact Safety Switch
  • RS Stock No. 176-0036
  • Mfr. Part No. 2TLA020046R0800 Eva General code
Each
Kr. 347,60(exc. VAT)
Limited stock
Telemecanique Sensors XCSA Safety Interlock Switch, 2NC/1NO, Keyed, Zinc Alloy
  • RS Stock No. 397-2150
  • Mfr. Part No. XCSA701
Each
Kr. 1 439,68(exc. VAT)
Limited stock
Telemecanique Sensors OsiSense XC Series Limit Switch Operating Head for Use with XCKD, XCKP, XCKT, XCMD
  • RS Stock No. 179-9995
  • Mfr. Part No. ZCY22
Each
Kr. 158,24(exc. VAT)
In Stock
EAO Legend Plate for Use with Push Button, Emergency Stop
  • RS Stock No. 288-194
  • Mfr. Part No. 46-50J.1413
Each
Kr. 41,07(exc. VAT)
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