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

51488 Products showing for Switches

2 of 999+
Better World
Schneider Electric Harmony XB4 Series Light Block, 24V, White Light
  • RS Stock No. 610-2815
  • Mfr. Part No. ZBVB1
Each
Kr. 122,52(exc. VAT)
Schurter IP40 Black Button Tact Switch, SPST 0.05VA 5mm Through Hole
  • RS Stock No. 269-3801
  • Mfr. Part No. 1301.9302
Each
Kr. 3,32(exc. VAT)
Allen Bradley Guardmaster 440E Rope Pull Switch, 75m, 2NO/2NC, Straight
  • RS Stock No. 627-3557
  • Mfr. Part No. 440E-L22BNSM
Each
Kr. 4 558,04(exc. VAT)
Variohm Group SPST Momentary (NO) Pendant Switch, 5A
  • RS Stock No. 698-099
  • Mfr. Part No. B7151-534
Each
Kr. 281,92(exc. VAT)
Schlegel Elektrokontakt Contact Blocks M... Series Contact Block for Use with Switches, 1NC
  • RS Stock No. 283-6317
  • Mfr. Part No. MTO
Each
Kr. 111,12(exc. VAT)
Allen Bradley Guardmaster 440G-S Series Solenoid Interlock Switch, Power to Unlock, 24V ac/dc, Actuator Included
  • RS Stock No. 251-1956
  • Mfr. Part No. 440G-S36001
Each
Kr. 6 063,66(exc. VAT)
RS PRO Toggle Switch, PCB Mount, On-On, SPDT, Through Hole Terminal, 250V
  • RS Stock No. 401-703
Each
Kr. 29,34(exc. VAT)
Schneider Electric XB5 Series Illuminated Push Button, 22mm Cutout, SPDT, 24V, IP66, IP67
  • RS Stock No. 276-2614
  • Mfr. Part No. XB5AW33B5C0
Each
Kr. 373,17(exc. VAT)
Allen Bradley Guardmaster 440K Safety Interlock Switch, 2NC/1NO, Keyed Actuator Included, Glass Filled PBT
  • RS Stock No. 251-2016
  • Mfr. Part No. 440K-T11118
Each
Kr. 842,78(exc. VAT)
Omron Hinge Lever Micro Switch, Pre-wired Terminal, 5 A @ 250 V ac, SPDT, IP67
  • RS Stock No. 616-0293
  • Mfr. Part No. D2VW-5L1-1M(D)(CHN)
Each
Kr. 156,56(exc. VAT)
Telemecanique Sensors XCKP Series Roller Lever Plunger Limit Switch, NO/NC, IP66, IP67, DP, Plastic Housing, 240V ac
  • RS Stock No. 447-3430
  • Mfr. Part No. XCKP2121P16
Each
Kr. 480,20(exc. VAT)
Eaton RMQ Titan M22 Series, Twist Release, Emergency Stop Push Button Head 38mm Diameter
  • RS Stock No. 110-4568
  • Mfr. Part No. 263469 M22-PVLT
Each
Kr. 450,62(exc. VAT)
Eaton 3 Pole Surface Mount Isolator Switch - 20A Maximum Current, 7.5kW Power Rating, IP65
  • RS Stock No. 269-9701
  • Mfr. Part No. 182430 T0-2-15679/I2H/MBS/SVB-SW
Each
Kr. 1 201,66(exc. VAT)
Telemecanique Sensors ZCT Series Limit Switch, NO/NC, IP66, IP67, DP, Plastic Housing, 240V ac Max, 10A Max
  • RS Stock No. 700-4188
  • Mfr. Part No. ZCT21P16
Each
Kr. 296,95(exc. VAT)
Lovato, DP 2 Position 60° On-Off Cam Switch, 690V ac, 20A, Knob Actuator
  • RS Stock No. 840-5602
  • Mfr. Part No. GX2091U
Each
Kr. 214,57(exc. VAT)
Better World
Schneider Electric Harmony XB Series Light Block, 230V, White Light
  • RS Stock No. 610-2938
  • Mfr. Part No. ZBVM1
Each
Kr. 245,50(exc. VAT)
Schneider Electric, On-Off Rocker Switch Screw Mount
  • RS Stock No. 275-8737
  • Mfr. Part No. ALB61051P
Each
Kr. 48,01(exc. VAT)
RS PRO SPST, On-Off Rocker Switch Panel Mount
  • RS Stock No. 793-2563
Each
Kr. 32,88(exc. VAT)
Carling Technologies Toggle Switch, Panel Mount, On-Off-On, SPDT, Tab Terminal, 250V ac
  • RS Stock No. 879-8235
  • Mfr. Part No. 2FC53-73/TABS
Each
Kr. 67,52(exc. VAT)
RS PRO Miniature Push Button Switch, Momentary, Panel Mount, 13.6mm Cutout, SPST, 32/50/125V ac, IP67
  • RS Stock No. 734-6704
Each
Kr. 52,91(exc. VAT)
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