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

55484 Products showing for Switches

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In Stock
RS Better World
Schneider Electric Knob Selector Switch - (2 NO) 22 mm Cutout Diameter 3 Positions
  • RS stock no. 330-8701
  • Mfr. Part No. XB4BD53
Subtotal (1 unit)
R 543,00(exc. VAT)
R 543,00/unit
In Stock
RS PRO Roller Plunger Limit Switch, 1 NO/1 NC, IP67, Die Cast Zinc Housing, 240V ac, 5A
  • RS stock no. 902-6929
Subtotal (1 unit)
R 795,68(exc. VAT)
R 795,68/unit
In Stock
Schmersal RSS 36 Series RFID Non-Contact Safety Switch, Fibreglass Reinforced Thermoplastic Housing, 26.4V dc, 2 PNP,
  • RS stock no. 880-1741
  • Mfr. Part No. RSS 36-D-ST
Subtotal (1 unit)
R 3 556,13(exc. VAT)
R 3 556,13/unit
In Stock
RS PRO Toggle Switch, Panel Mount, On-None-Off, SPDT, Screw Terminal, 28 V dc, 28 V ac
  • RS stock no. 734-6801
Subtotal (1 unit)
R 44,05(exc. VAT)
R 44,05/unit
In Stock
RS Better World
Siemens SIRIUS ACT 3SU11 4-Axis Joystick Round Momentary, 10A
  • RS stock no. 173-6767
  • Mfr. Part No. 3SU1100-7AF10-1QA0
Subtotal (1 unit)
R 1 893,22(exc. VAT)
R 1 893,22/unit
In Stock
Schneider Electric Push Button Pendant Station Yellow Polypropylene
  • RS stock no. 211-8424
  • Mfr. Part No. XACA68131
Subtotal (1 unit)
R 6 735,39(exc. VAT)
R 6 735,39/unit
In Stock
ABB Black Rotary Handle, 145 mm, 1SCA Series
  • RS stock no. 231-9080
  • Mfr. Part No. 1SCA022381R2110 OHB145J12
Subtotal (1 unit)
R 1 443,21(exc. VAT)
R 1 443,21/unit
In Stock
ABB 4-Pole DIN Rail Isolator Switch -, IP20, 63A
  • RS stock no. 175-5101
  • Mfr. Part No. 2CDD284101R0063 SD204/63
Subtotal (1 unit)
R 2 291,08(exc. VAT)
R 2 291,08/unit
In Stock
Telemecanique Sensors XCSDMP Series Safety Switch, Plastic Housing, 100V, NO, 3 NC, Cable
  • RS stock no. 133-0072
  • Mfr. Part No. XCSDMP7005
Subtotal (1 unit)
R 2 908,40(exc. VAT)
R 2 908,40/unit
In Stock
Telemecanique Sensors XCKJ Series Roller Lever Limit Switch, 1 NO/1 NC, IP66, Zamak Housing, 240V ac
  • RS stock no. 700-4309
  • Mfr. Part No. XCKJ10541H29
Subtotal (1 unit)
R 2 356,45(exc. VAT)
R 2 356,45/unit
In Stock
RS PRO DPDT, Momentary On-On Rocker Switch Panel
  • RS stock no. 174-8339
Subtotal (1 unit)
R 283,26(exc. VAT)
R 283,26/unit
In Stock
Eaton RMQ-Titan 4-Axis Joystick Lever Spring Return, IP66, 240 V ac, 0pA
  • RS stock no. 512-9819
  • Mfr. Part No. 279417 M22-WJ4
Subtotal (1 unit)
R 1 461,33(exc. VAT)
R 1 461,33/unit
In Stock
RS PRO, For Use With 22 mm Push Button Switch
  • RS stock no. 905-9828
Subtotal (1 unit)
R 223,94(exc. VAT)
R 223,94/unit
In Stock
RS Better World
Schneider Electric 4-Pole DIN Rail Switch Disconnector -, IP20, 100A
  • RS stock no. 790-7488
  • Mfr. Part No. A9S65491
Subtotal (1 unit)
R 2 928,02(exc. VAT)
R 2 928,02/unit
In Stock
RS PRO 3-Pole DIN Rail Isolator Switch -, IP65, 100A, 45 kW
  • RS stock no. 466-154
Subtotal (1 unit)
R 1 233,21(exc. VAT)
R 1 233,21/unit
In Stock
Eaton 3-Pole Surface Mount Non-Fused Switch Disconnector -, IP65, 20A, 5.5 kW
  • RS stock no. 220-7522
  • Mfr. Part No. 207147 T0-2-1/I1/SVB
Subtotal (1 unit)
R 1 038,15(exc. VAT)
R 1 038,15/unit
In Stock
Kraus & Naimer 3 Position, Rotary Knob Actuator 10 A
  • RS stock no. 340-291
  • Mfr. Part No. CG4.A210/GBA127.EF
Subtotal (1 unit)
R 462,84(exc. VAT)
R 462,84/unit
In Stock
Bernstein AG IN65 Series Roller Lever Limit Switch, 1 NO/1 NC, IP66, IP67, Fibreglass Reinforced Thermoplastic Housing,
  • RS stock no. 189-5285
  • Mfr. Part No. 6083000229
Subtotal (1 unit)
R 668,59(exc. VAT)
R 668,59/unit
In Stock
ABB 1-Pole Non-Fused Switch Disconnector -, 16A
  • RS stock no. 186-3450
  • Mfr. Part No. 2CCA703000R0001 E211-16-10
Subtotal (1 unit)
R 295,45(exc. VAT)
R 295,45/unit
In Stock
Eaton M22 Series Red Momentary Push Button Head, 22 mm Cutout, IP67
  • RS stock no. 847-5089
  • Mfr. Part No. 216925 M22-DL-R
Subtotal (1 unit)
R 266,76(exc. VAT)
R 266,76/unit
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