Microswitches

Microswitches are mechanically operated electrical switches designed with an actuator and terminals called common, normally open and normally closed. A micro switch is also known as a snap action switch, they operate by using a spring loaded lever to open and close a set of internal contacts inside the unit.

How does a microswitch work?

Power is typically attached to the common terminal, this leads into the switch and energises the spring and because the spring is touching the normally close pin it sends power out here, this is called a resting state. Once the arm is moved the power is then transferred to the normally open pin.

Where would you find them?

Microswitches are differentiated by their electrical characteristics. These are small devices and generally only designed to carry low current and voltages. These switches are very commonly employed as safety devices, as they are reliable, inexpensive and can open up a circuit when needed, preventing a machine from being turned on or a door from closing when someone is in the way.

Actuator types

There are various types available but the operating principles are the same, switches are actuated by a plunger, a button, a roller or a lever.

What is their operating life?

Microswitches operating life is generally very high, being measured in millions of cycles, in most cases. Consumer products generally have lighter-duty microswitches than industrial products, but the low cost of these parts makes it easy enough to upgrade to higher mechanical life expectancies when required or when it's simply beneficial to do so.

Standards

We offer a range of high quality sealed miniature and sub-miniature microswitches that meet industry standards and RoHS compliance.

What type of applications need microswitches?

Microswitches are used in consumer devices and industrial equipment. Common application for these devices are in door interlocks, microwave ovens or where a door has to be shut before the power to the device will turn on. Microswitches are also used in levelling devices, such as those used on vending machines. In an elevator, these devices are used in the door as a safety switch.

Microswitches can be designed to be very sensitive. Such designs can be used in very precise equipment, such as that which measures the flow of air or other gasses through a system. These devices are used extensively in industry, often in control circuits.

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Omschrijving Prijs Actuator Type Terminal Type Contact Current Rating Contact Configuration IP Rating Operating Force Minimum Operating Temperature Maximum Operating Temperature Switch Housing Contact Material Case Material Mechanical Life Release Force Operating Temperature Range
RS-stocknr. 539-309
Fabrikantnummer83137004
FabrikantCrouzet
€ 10,61
Each
Aantal stuks
- - - - - - - - - - - - - -
RS-stocknr. 321-8210
Fabrikantnummer83 161 118
FabrikantCrouzet
€ 3,31
Each
Aantal stuks
Button Tab 16 A @ 250 V ac SPDT-NO/NC IP40 3 N -20°C +125°C - Silver Nickel Polyamide 10000000Operations 1N -20 → +125°C
RS-stocknr. 161-6707
Fabrikantnummer83161301
FabrikantCrouzet
€ 4,17
Each
Aantal stuks
Plunger Solder 20 A @ 250 V ac NO/NC IP40 0.8 N -20°C +125°C V3 Housing Silver Nickel Polyamide 2 x 10^7Operations 0.2N -20 → +125°C
RS-stocknr. 161-7306
Fabrikantnummer83123024
FabrikantCrouzet
€ 74,51
Each
Aantal stuks
Standard - 5 A @ 250 V ac Single Pole Double Throw (SPDT) IP66 7.5 N 0°C +85°C - Silver Nitrile 2 x 10^6Operations 1.5N 0 → +85°C
RS-stocknr. 161-6656
Fabrikantnummer83170908
FabrikantCrouzet
€ 3,61
Each
Aantal stuks
Push Button - 5 A @ 250 V ac SPDT - 0.6 N -20°C +125°C V4 Housing Gold Plated Silver Nickel PA 6.6 3 x 10^7Operations 0.1N -20 → +125°C
RS-stocknr. 700-5734
Fabrikantnummer83240003
FabrikantCrouzet
€ 31,84
Each
Aantal stuks
Lever Tab 6 A @ 250 V ac DT-NO/NC IP40 4.5 N -50°C +85°C - Silver Nickel Glass Fibre Reinforced PC 10^7Operations - -50 → +85°C
RS-stocknr. 161-6713
Fabrikantnummer83161338
FabrikantCrouzet
€ 4,17
Each
Aantal stuks
Plunger Tab 20 A @ 250 V ac NO/NC IP40 0.8 N -20°C +125°C V3 Housing Silver Nickel Polyamide 2 x 10^7Operations 0.2N -20 → +125°C
RS-stocknr. 161-5574
Fabrikantnummer83139003
FabrikantCrouzet
€ 55,46
Each
Aantal stuks
- - 6 A @ 250 V ac DPST - - 0°C +85°C - - - - - 0 → +85°C
RS-stocknr. 219-3744
Fabrikantnummer83160067
FabrikantCrouzet
€ 10,90
Each
Aantal stuks
Lever Tab 16 A @ 250 V ac SPDT - 4 N -20°C +125°C - Nickel Silver Polyamide 10^7Operations 1.5N -20 → +125°C
RS-stocknr. 219-3794
Fabrikantnummer83 186 003
FabrikantCrouzet
€ 13,52
Each
Aantal stuks
Button Solder 6 A @ 250 V ac SPDT-NO/NC IP67 2.5 N -40°C +125°C - Gold Plated Silver Cadmium Oxide; Gold Plated Silver Tin Oxide - 2000000Operations 0.8N -40 → +125°C
RS-stocknr. 307-4010
Fabrikantnummer83 170 902
FabrikantCrouzet
€ 3,61
Each
Aantal stuks
Plunger Solder 100 mA @ 250 V ac SPDT - 0.6 N -20°C +125°C V4 Housing Silver Nickel PET 3 x 10^7Operations 0.1N -20 → +125°C
RS-stocknr. 161-6640
Fabrikantnummer83170402
FabrikantCrouzet
€ 3,15
Each
Aantal stuks
Button - 5 A @ 250 V ac NO/NC - 0.6 N -20°C +125°C V4 Housing Silver Nickel PA 6.6 3 x 10^7Operations 0.1N -20 → +125°C
RS-stocknr. 161-7312
Fabrikantnummer83169002
FabrikantCrouzet
€ 35,92
Each
Aantal stuks
Plunger Pre-wired 8 A @ 250 V ac SPDT-NO/NC IP67 4.5 N -20°C +85°C - Silver Nickel - 5000000Operations 1N -20 → +85°C
RS-stocknr. 307-3972
Fabrikantnummer83 186 001
FabrikantCrouzet
€ 3,96
Each
Aantal stuks
Button Solder 6 A @ 250 V ac SPDT-NO/NC IP67 2.5 N -40°C +125°C - Gold Plated Silver Cadmium Oxide; Gold Plated Silver Tin Oxide - 2000000Operations 0.8N -40 → +125°C
RS-stocknr. 307-3994
Fabrikantnummer83 170 405
FabrikantCrouzet
€ 3,15
Each
Aantal stuks
Plunger Solder 5 A @ 250 V ac NO/NC - 0.6 N -20°C +125°C - Silver Nickel PET 3 x 10^7Operations 0.1N -20 → +125°C
RS-stocknr. 219-3750
Fabrikantnummer83160065
FabrikantCrouzet
€ 13,06
Each
Aantal stuks
Roller Lever Tab 16 A @ 250 V ac SPDT - 4 N -20°C +125°C - Nickel Silver Polyamide 10^7Operations 1.5N -20 → +125°C
RS-stocknr. 700-5728
Fabrikantnummer83240000
FabrikantCrouzet
€ 26,53
Each
Aantal stuks
Plunger Tab 6 A @ 250 V ac DT-NO/NC IP40 4.5 N -50°C +85°C - Silver Nickel Glass Fibre Reinforced PC 10^7Operations - -50 → +85°C
RS-stocknr. 307-3988
Fabrikantnummer83 186 002
FabrikantCrouzet
€ 9,72
Each
Aantal stuks
Button Solder 6 A @ 250 V ac SPDT-NO/NC IP67 2.5 N -40°C +125°C - Gold Plated Silver Cadmium Oxide; Gold Plated Silver Tin Oxide - 2000000Operations 0.8N -40 → +125°C
RS-stocknr. 219-3766
Fabrikantnummer83 160 329
FabrikantCrouzet
€ 13,56
Each
Aantal stuks
Roller Lever Tab 10 A @ 250 V ac SPDT - 2 N -20°C +125°C - Nickel Silver Polyamide 10^7Operations 0.6N -20 → +125°C
RS-stocknr. 307-4004
Fabrikantnummer83 170 408
FabrikantCrouzet
€ 2,77
Each
Aantal stuks
Plunger Solder 5 A @ 250 V ac NO/NC - 0.6 N -20°C +125°C - Silver Nickel PET 3 x 10^7Operations 0.1N -20 → +125°C