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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Viewing 61 - 80 of 1806 products
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Description Price 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 Stock No. 161-7312
Mfr. Part No.83169002
BrandCrouzet
kr 295,54
Each
Units
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 Stock No. 686-6840
Mfr. Part No.SS-5GL13
BrandOmron
kr 14,756
Each (In a Bag of 5)
Units
Simulated Roller Lever Solder 5 A @ 125 V ac SPDT-NO/NC IP40 0.49 N -25°C +85°C - Silver - 30000000Operations 0.06N -25 → +85°C
RS Stock No. 804-6231
BrandRS PRO
kr 81,24
Each
Units
Plunger Quick Connect 6 A @ 400 V ac SPDT-NO/NC IP40 600 gms -20°C +85°C V0 Housing Silver - 1 x 10⁶Operations - -20 → +85°C
RS Stock No. 159-4411
Mfr. Part No.D459-V3AA
BrandZF
kr 20,026
Each (In a Pack of 5)
Units
Button Tab 16 A @ 250 V ac SPDT-NO/NC - 0.98 N -40°C +85°C - Silver Alloy - - - -40 → +85°C
RS Stock No. 616-0079
Mfr. Part No.SSG-5L2H
BrandOmron
kr 18,34
Each
Units
Roller Lever Solder 5 A @ 125 V ac SPDT-NO/NC IP40 0.6 N -25°C +125°C - Silver - 10000000Operations 0.06N -25 → +125°C
RS Stock No. 682-2578
Mfr. Part No.D3V-166-1A5
BrandOmron
kr 25,602
Each (In a Pack of 5)
Units
Roller Lever Solder, Tab 16 A @ 250 V ac SPDT-NO/NC IP40 - -25°C +105°C - Silver Alloy - 10000000Operations - -25 → +105°C
RS Stock No. 307-3988
Mfr. Part No.83 186 002
BrandCrouzet
kr 96,91
Each
Units
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 Stock No. 804-6234
BrandRS PRO
kr 22,61
Each
Units
Push Button Quick Connect 16 A @ 250 V ac SPDT - 400 gms -55 (Environmental)°C +85°C V3 Housing Silver on Copper Glass Filled Thermoplastic 10000000Operations 80gf -55 → +85 (Environmental)°C
RS Stock No. 517-858
Mfr. Part No.DB2C-B1AA
BrandZF
kr 32,84
Each
Units
Button Tab 10.1 A @ 250 V ac SPDT-NO/NC - 2.45 N -40°C +120°C - Gold; Silver Alloy - 15000000Operations - -40 → +120°C
RS Stock No. 868-1903
Mfr. Part No.D443-R1RD-G2
BrandZF
kr 60,21
Each
Units
Roller Lever Quick Connect 6 A @ 30 V dc, 10 A @ 125/250 V ac SPDT IP50 - -40°C +150°C - Silver Alloy Thermoplastic Polyester PET - - -40 → +150°C
RS Stock No. 682-2660
Mfr. Part No.SS-5GL2
BrandOmron
kr 19,78
Each (In a Pack of 5)
Units
Roller Lever Solder 5 A @ 125 V ac SPDT-NO/NC IP40 0.49 N -25°C +85°C - Silver - 30000000Operations 0.06N -25 → +85°C
RS Stock No. 338-298
Mfr. Part No.BZ-2RW80-A2
BrandHoneywell
kr 167,49
Each
Units
Lever Screw 15 A @ 125 V ac SPDT-NO/NC - 0.7 N - - - - - - 0.14N -
RS Stock No. 686-6944
Mfr. Part No.D2JW-01K31
BrandOmron
kr 65,10
Each
Units
Simulated Roller Lever Solder 100 mA @ 30 V dc SPDT-NO/NC IP67 0.95 N -40°C +85°C - Gold Alloy - 1000000Operations 0.2N -40 → +85°C
RS Stock No. 823-5002
Mfr. Part No.01055.2061-02
BrandMarquardt
kr 46,16
Each
Units
Button Pc Pin 4 A @ 12 V dc SPDT IP 00, IP 40, IP 67 ≤1.8 N -40°C +85°C - Ag Gold Plated PBTP 500000Cycles - -40 → +85°C
RS Stock No. 103-1667
Mfr. Part No.V-166-1C5(R)
BrandOmron
kr 49,55
Each
Units
Long Roller Lever Tab 16 A @ 250 V ac SPDT IP40 1.96 N -25°C +80°C - Silver Alloy Thermoplastic 50000000Operations 0.14N -25 → +80°C
RS Stock No. 161-7306
Mfr. Part No.83 123 0-2,2M
BrandCrouzet
kr 742,84
Each
Units
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 Stock No. 842-8721
Mfr. Part No.BZ-2RS-A2
BrandHoneywell
kr 106,08
Each
Units
Plunger Screw 15 A SPDT - 2.5 → 3.61 N -55°C +85°C - Silver Phenolic 20000000Operations 1.11N -55 → +85°C
RS Stock No. 868-1534
Mfr. Part No.GPTCNH11
BrandZF
kr 148,85
Each
Units
Button Screw 15 A SPDT IP40 12.3 oz -20°C 85°C - Silver Alloy Phenolic - 113.398gf -20 → +85°C
RS Stock No. 699-0445
Mfr. Part No.AVT32023
BrandPanasonic
kr 14,83
Each
Units
Pin Plunger Solder 3 A @ 250 V ac SPDT - 0.49 N -25°C +85°C - Silver Nickel Alloy - 5 x 10^5Operations 0.074N -25 → +85°C
RS Stock No. 868-1525
Mfr. Part No.GPTCNC11
BrandCherry
kr 92,863
Each (In a Pack of 800)
Units
Button Screw 15 A SPDT IP40 12.3 oz -5 (VDE) °C, 0 (UL) °C +40 (VDE) °C, +55 (UL) °C - Silver Alloy Phenolic - 113.398gf -5 → +40 (VDE) °C, 0 → +55 (UL) °C
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