Micro Switches & Detector Switches

Microswitches are also known as miniature snap-action switches. Essentially, they're sensors that detect a change in state (for example from closed to open) and modify the direction of power into a circuit accordingly.We supply a complete range of microswitches from top brands including Panasonic, Omron, Honeywell and Cherry. You can also find a range of accessories including microswitch levers, actuators, terminal covers and caps.

How do microswitches work?

A microswitch uses a spring to open and close a set of internal contacts so that the direction of power in it can change. Moving the lever of a switch causes the spring to snap back and forth which results in a quick change of direction of power between two devices. For this to happen, the switch uses three connection points:Common (C): power is normally attached to this kind of terminal. This is called the resting state, meaning there's nothing pushing on the activating armNormally Open (N/O): when the arm is moved, the spring snaps into a 'U' position, and changes the power by activating the normally open path. In this position, the electricity flow is interrupted, therefore the circuit is switched offNormally Closed (N/C): the normally closed path indicates that the current flow is not interrupted, therefore when this path is activated the circuit is on.In summary, the change in the direction of power happens when an activating arm is moved in the connection: when one connection path is activated the other is simultaneously interrupted.

Where are microswitches used?

Microswitches are handy as safety devices since they're able to open and close a circuit easily, therefore preventing accidents related to the automatic activation of power machines or the closure of doors, for example.They're widely used in the industrial and automotive sectors, although are often involved in the functioning of everyday objects like vending machines, lifts, door interlocks and tools when the detection of a change in state is needed.In addition to a wide range of microswitches, we also offer a choice of accessories to improve their efficacy and simplify their maintenance including:Microswitches actuatorsMicroswitches capsMicroswitches hex nutsMicroswitches leversMicroswitches terminal covers 

What are detector switches ?

 Detector switches are used to detect mechanical movements and convert to an electronic signal. Detection switches are commonly used to detect an open or shut detection. Used in Industrial and domestic appliances and also the automotive industry.

Detector Switches
Detector Switches
Door Interlock Switches
Door Interlock Switches
Micro Switch Actuators
Micro Switch Actuators
Micro Switch Caps & Covers
Micro Switch Caps & Covers
Micro Switches
Micro Switches
RF Switches
RF Switches
Thermostatic Switches
Thermostatic Switches

2512 Products showing for Micro Switches & Detector Switches

120 of 126
Currently unavailable
Panasonic Pin Plunger Micro Switch, Pre-Wired Terminal, 100 mA, 30 V dc, SPST, IP67
  • RS Stock No. 173-8296
  • Mfr. Part No. ASQ10320
Subtotal (1 box of 100 units)
£721.10(exc. VAT)
Temporarily out of stock
Panasonic Pin Plunger Snap Action Micro Switch, Solder Terminal, 50 mA, 16 V dc, SPST, IP67
  • RS Stock No. 233-8424
  • Mfr. Part No. ASQM16420-A
Subtotal (1 box of 1000 units)
£3,059.00(exc. VAT)
Last RS stock
Sensata / Airpax Bi-Metallic Thermostat, 120 °C Max Open On Rise, Automatic Reset, SPST, 1 A, Surface Mount
  • RS Stock No. 275-0084
  • Mfr. Part No. 66F085
Subtotal (1 tube of 50 units)
£410.82(exc. VAT)
Temporarily out of stock
Jumo Capillary Thermostat, 110 °C Max, Automatic Reset, 10 A, Surface Mount
  • RS Stock No. 278-906
  • Mfr. Part No. 603021/70-1-052-00-0-00-20-13-46-200-8-6/000
Subtotal (1 unit)
£282.96(exc. VAT)
Currently unavailable
KNITTER-SWITCH Detector Switch, 10 mA, Gold Plated Copper
  • RS Stock No. 164-9487
  • Mfr. Part No. DTS 205 CP-T
Subtotal (1 reel of 2300 units)
£1,215.64(exc. VAT)
Temporarily out of stock
Jumo Capillary Thermostat, 300 °C Max, Screw
  • RS Stock No. 279-642
  • Mfr. Part No. 606710/28-13-46-200-8/000
Subtotal (1 unit)
£34.50(exc. VAT)
In Stock
TE Connectivity Simulated Roller Lever Snap Action Micro Switch, Quick Connect Terminal, 16 A, 250 V dc, SPDT
  • RS Stock No. 274-8430
  • Mfr. Part No. HCP16DTD4L04
Subtotal (1 tray of 100 units)
£246.20(exc. VAT)
In Stock
TE Connectivity Simulated Roller Lever Snap Action Micro Switch, Quick Connect Terminal, 20 A, 250 V dc, SPDT
  • RS Stock No. 274-8446
  • Mfr. Part No. HCP20DTD4H04
Subtotal (1 tray of 100 units)
£279.10(exc. VAT)
Temporarily out of stock
Panasonic Pin Plunger Snap Action Micro Switch, Solder Terminal, 50 mA, 16 V dc, SPST, IP67
  • RS Stock No. 233-8440
  • Mfr. Part No. ASQM17430-A
Subtotal (1 box of 1000 units)
£3,025.00(exc. VAT)
Last RS stock
Wurth Elektronik Lever Micro Switch, Solder Terminal, 3 A, 125 V ac, 30 V dc, SPCO
  • RS Stock No. 485-826
  • Mfr. Part No. 463092370402
Subtotal (1 unit)
£2.01(exc. VAT)
In Stock
Sensata / Airpax Bi-Metallic Thermostat, 130 °C Max Open On Rise, Automatic Reset, SPST, 1 A, Surface Mount
  • RS Stock No. 275-0155
  • Mfr. Part No. 67L100
Subtotal (1 tube of 50 units)
£318.32(exc. VAT)
In Stock
Sensata / Airpax Bi-Metallic Thermostat, 130 °C Max Open On Rise, Automatic Reset, SPST, 1 A, Surface Mount
  • RS Stock No. 275-0142
  • Mfr. Part No. 67L060
Subtotal (1 tube of 50 units)
£318.32(exc. VAT)
Temporarily out of stock
Jumo Capillary Thermostat, 500 °C Max Restart Lock, Changeover Contact, NC, Automatic Reset, NC, 10 A, Surface Mount
  • RS Stock No. 279-144
  • Mfr. Part No. 603026/0202-1-046-50-0-00-30-13-20-200-15-6 000
Subtotal (1 unit)
£486.18(exc. VAT)
Temporarily out of stock
Jumo Capillary Thermostat, 120 °C Max, Automatic Reset, NC, 10 A, Surface Mount
  • RS Stock No. 278-790
  • Mfr. Part No. 603026/0170-1-042-30-0-00-20-13-46-150-15-6 000
Subtotal (1 unit)
£377.78(exc. VAT)
Temporarily out of stock
Panasonic Simulated Roller Lever Snap Action Micro Switch, Wire Terminal, 50 mA, 16 V dc, SPST, IP67
  • RS Stock No. 233-8414
  • Mfr. Part No. ASQM11228-A
Subtotal (1 box of 240 units)
£1,759.92(exc. VAT)
Temporarily out of stock
Jumo Capillary Thermostat, 150 °C Max, Automatic Reset, 3P+N, 10 A, Surface Mount
  • RS Stock No. 278-940
  • Mfr. Part No. 603021/02-1-043-30-0-00-20-13-20-200-8-6/000
Subtotal (1 unit)
£260.31(exc. VAT)
In Stock
Sensata / Airpax Bi-Metallic Thermostat, 120 °C Max Open On Rise, Automatic Reset, SPST, 1 A, Surface Mount
  • RS Stock No. 275-0080
  • Mfr. Part No. 66F060
Subtotal (1 tube of 50 units)
£410.82(exc. VAT)
In Stock
TE Connectivity Lever Snap Action Micro Switch, PCB Terminal Terminal, 3 A, SPST
  • RS Stock No. 239-8363
  • Mfr. Part No. SAJ13XXHL0N88SNCPTQ
Subtotal (1 pack of 5 units)
£3.19(exc. VAT)
Temporarily out of stock
TE Connectivity Roller Snap Action Micro Switch, PCB Terminal Terminal, 3 A, SPST
  • RS Stock No. 239-8377
  • Mfr. Part No. SAJ13XXRHLN88SNCPTQ
Subtotal (1 pack of 5 units)
£4.77(exc. VAT)
Temporarily out of stock
Jumo Capillary Thermostat, 300 °C Max, Screw
  • RS Stock No. 279-369
  • Mfr. Part No. 606710/29-13-46-200-8/000
Subtotal (1 unit)
£43.32(exc. VAT)
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