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

53476 Products showing for Switches

3 of 999+
In Stock
Telemecanique Sensors OsiSense XC Series Roller Lever Limit Switch, DP, IP65, Plastic Housing, 240V ac, 10A
  • RS Stock No. 125-8461
  • Mfr. Part No. XCKN2118P20
Subtotal (1 unit)
Kr. 252,14(exc. VAT)
In Stock
RS PRO Bi-Metallic Thermostat, Closes at 105 °C, 120 °C Max NC, Automatic Reset, 16 A, Fixed Mount
  • RS Stock No. 222-8237
Subtotal (1 unit)
Kr. 88,77(exc. VAT)
In Stock
RS Better World
Schneider Electric Harmony Series Contact Block, 600V, SPDT
  • RS Stock No. 342-2784
  • Mfr. Part No. ZB4BZ104
Subtotal (1 unit)
Kr. 186,59(exc. VAT)
In Stock
Panasonic Short Roller Lever Micro Switch, Tab Terminal, 5A, 250 V ac, 24 V dc, SPCO, IP50
  • RS Stock No. 699-0243
  • Mfr. Part No. ABV1215513R
Subtotal (1 unit)
Kr. 72,72(exc. VAT)
In Stock
APEM IM Series Push Button Switch, Momentary, Panel, 13.6 mm Cutout, SPDT, IP67
  • RS Stock No. 864-4475
  • Mfr. Part No. IMR7Z422104UL
Subtotal (1 unit)
Kr. 229,21(exc. VAT)
Limited stock
Telemecanique Sensors XCKJ Series Roller Lever Limit Switch, DPST, IP66, Zinc Zamak Alloy Housing, 50V ac, 3A
  • RS Stock No. 195-1664
  • Mfr. Part No. XCKJ10543
Subtotal (1 unit)
Kr. 1 483,77(exc. VAT)
In Stock
Omron D4BS Safety Interlock Switch, Keyed, Plastic
  • RS Stock No. 240-8232
  • Mfr. Part No. D4BS-15FS
Subtotal (1 unit)
Kr. 1 352,39(exc. VAT)
In Stock
APEM Toggle Switch, Panel Mount, On-Off-On, DPDT, Tab Terminal, 24 V dc, 250 V ac
  • RS Stock No. 665-691
  • Mfr. Part No. 649NH/2
Subtotal (1 unit)
Kr. 175,90(exc. VAT)
In Stock
RS Better World
Schneider Electric Harmony Series, Pull Release, Emergency Stop Push Button Head
  • RS Stock No. 609-2673
  • Mfr. Part No. ZB4BT84
Subtotal (1 unit)
Kr. 352,47(exc. VAT)
In Stock
RS Better World
Schneider Electric Harmony Series Contact Block, 600V, SPST
  • RS Stock No. 331-0467
  • Mfr. Part No. ZB5AZ102
Subtotal (1 unit)
Kr. 80,54(exc. VAT)
In Stock
Kraus & Naimer 3-Pole Surface Isolator Switch -, IP67, IP66, 20A, 5.5 kW
  • RS Stock No. 381-3578
  • Mfr. Part No. KG10.T203/GBA283.*KS1V
Subtotal (1 unit)
Kr. 464,35(exc. VAT)
Temporarily out of stock
BACO L21MA Rotary Switch, 10A, Screw
  • RS Stock No. 288-4704
  • Mfr. Part No. L21MA03A
Subtotal (1 unit)
Kr. 277,10(exc. VAT)
Supply shortage
Telemecanique Sensors XY2CH Rope Pull Switch 68 mm, Straight, 2 NC
  • RS Stock No. 742-3924
  • Mfr. Part No. XY2CH13270H29
Subtotal (1 unit)
Kr. 2 612,90(exc. VAT)
Currently unavailable
RND RND 210 Series Illuminated Push Button Switch, On-On, Panel, 19 mm Cutout, 1 CO, Red LED, IP67 250 V ac
  • RS Stock No. 283-2552
  • Mfr. Part No. RND 210-00399
Subtotal (1 unit)
Kr. 190,87(exc. VAT)
In Stock
RS PRO Illuminated Push Button Switch, Latching, Panel, 19.2 mm Cutout, DPDT, Red LED, IP67 250 V ac
  • RS Stock No. 111-5793
Subtotal (1 unit)
Kr. 206,61(exc. VAT)
In Stock
RS Better World
Schneider Electric Harmony Series Twist Release Emergency Stop Push Button, Panel Mount, 22 mm Cutout, 1 NC, IP67, IP66,
  • RS Stock No. 795-1306
  • Mfr. Part No. XB4BS8442
Subtotal (1 unit)
Kr. 454,05(exc. VAT)
In Stock
Eaton RMQ-Titan Series 2 Position Illuminated Selector Switch Head, 23 mm Cutout, Green Handle, IP66
  • RS Stock No. 110-4532
  • Mfr. Part No. 216827 M22-WRLK-G
Subtotal (1 unit)
Kr. 279,62(exc. VAT)
In Stock
Eaton Black Rotary Handle, SVB Series
  • RS Stock No. 805-5689
  • Mfr. Part No. 172843 SVB-SW-P3/M
Subtotal (1 unit)
Kr. 299,26(exc. VAT)
In Stock
Marquardt Illuminated Push Button Switch, Panel Green, DPDT, IP67
  • RS Stock No. 472-1824
  • Mfr. Part No. 1687.1104
Subtotal (1 unit)
Kr. 67,52(exc. VAT)
In Stock
RS PRO Selector Switch Selector Switch - (1 CO) 22 mm Cutout Diameter 2 Positions
  • RS Stock No. 145-0622
Subtotal (1 unit)
Kr. 203,63(exc. VAT)
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