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.

...
Read more Read less

Filters

Viewing 81 - 100 of 1810 products
Results per page
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. 517-898
Mfr. Part No.DB1C-D3AA
BrandZF
kr 21,73
Each
Units
Button Through Hole 6 A @ 250 V ac SPDT-NO/NC - 1.47 N -40°C +120°C - Gold; Silver Alloy - 15000000Operations - -40 → +120°C
RS Stock No. 456-4621
Mfr. Part No.V4LSA2
kr 151,83
Each
Units
Lever Pre-wired 5 A @ 250 V ac SP-NO/NC IP6K7 2 N -40°C +85°C - Fine Silver Glass Fibre Reinforced PA 10^5Operations 0.3N -40 → +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
RS Stock No. 698-9883
Mfr. Part No.ABS161640
BrandPanasonic
kr 64,00
Each
Units
Roller Lever Pre-wired 2 A @ 30 V dc SPDT IP67 0.39 N -40°C +85°C - Silver Nickel Alloy - 5 x 10^6Operations 0.034N -40 → +85°C
RS Stock No. 616-0114
Mfr. Part No.D2F-L
BrandOmron
kr 18,164
Each (In a Pack of 5)
Units
Hinge Lever PCB 3 A @ 125 V ac SPDT-NO/NC IP40 0.78 N -25°C +65°C - Silver Alloy - 1000000Operations 0.05N -25 → +65°C
RS Stock No. 173-9368
Mfr. Part No.4BRSH
kr 503,822
Each (In a Bag of 25)
Units
Plunger Pre-wired 15 A @ 250 V ac SPDT IP67 7.2 N -40°C +85°C - Silver Zinc Alloy 1000000Operations 1.7N -40 → +85°C
RS Stock No. 868-1540
Mfr. Part No.GPTCRM11
BrandZF
kr 109,89
Each
Units
Hinge Roller Lever Screw 15 A SPDT IP40 5.6 oz -5 (VDE) °C, 0 (UL) °C +40 (VDE) °C, +55 (UL) °C - Silver Alloy Phenolic - 42.52425gf -5 → +40 (VDE) °C, 0 → +55 (UL) °C
RS Stock No. 699-0050
Mfr. Part No.ABS561240
BrandPanasonic
kr 91,62
Each
Units
Hinge Lever Through Hole 2 A @ 30 V dc SPDT-NO/NC IP67 0.34 N -40°C +85°C - Silver Alloy - 5000000Operations 0.029N -40 → +85°C
RS Stock No. 907-6706
Mfr. Part No.1048.1102
BrandMarquardt
kr 56,07
Each
Units
Standard Cable 3 A SPDT IP67 ≤2.6 N -40°C +100°C - Silver PA Laminated Glass Fiber-Reinforced 30000Operations - -40 → +100°C
RS Stock No. 103-7154
Mfr. Part No.AV444461J
BrandPanasonic
kr 56,23
Each
Units
Roller Lever Through Hole 100 mA @ 30 V dc SPDT - 0.29 N -25°C +80°C - Gold Plated - 3 x 10^5Operations - -25 → +80°C
RS Stock No. 804-6209
BrandRS PRO
kr 30,96
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. 616-0316
Mfr. Part No.D2VW-5L2-A1-M
BrandOmron
kr 142,96
Each
Units
Roller Lever Pre-wired 5 A @ 250 V ac SPDT-NO/NC IP67 1.18 N -40°C +85°C - Silver Alloy - 10000000Operations 0.15N -40 → +85°C
RS Stock No. 820-7408
Mfr. Part No.1TB1-1
BrandHoneywell
kr 573,63
Each
Units
Pin Plunger Solder 10 A @ 250 V ac DPDT - 1.95 → 3.61 N -55°C +125°C - Silver Phenolic 7000000Operations 1.11N -55 → +125°C
RS Stock No. 173-8350
Mfr. Part No.AVT32023
BrandPanasonic
kr 11,775
Each (In a Box of 100)
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. 682-2411
Mfr. Part No.D3V-162-1C25
BrandOmron
kr 19,84
Each (In a Pack of 5)
Units
Hinge Lever Tab 16 A @ 250 V ac SPDT-NO/NC IP40 - -25°C +105°C - Silver Alloy - 10000000Operations - -25 → +105°C
RS Stock No. 472-8178
Mfr. Part No.XCF3-J1-Z1
kr 22,93
Each
Units
Hinge Lever Solder 10.1 A @ 250 V ac - - 1.04 N - - - Gold; Silver - - 0.16N -
RS Stock No. 842-6693
Mfr. Part No.BZ-2RQ77
BrandHoneywell
kr 258,47
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. 868-1749
Mfr. Part No.0E72-40AT
BrandZF
kr 140,34
Each
Units
Button Wire Lead 10.1 A NC, NO - 300 g -40°C +85°C - Silver Alloy Thermoplastic Nylon - - -40 → +85°C
RS Stock No. 868-1638
Mfr. Part No.0G1301M0
BrandZF
kr 60,92
Each
Units
Button Blade 100 mA SPST-NO - 425 g -40°C +150°C - Gold Plated General Purpose Phenolic - - -40 → +105°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
Related Products
Cherry D4 series miniature microswitches are a highly ...
Description:
Cherry D4 series miniature microswitches are a highly reliable switch that offers a high level of repeat accuracy. The D4 series has high contact stability thanks to application-specific contact materials for switching currents of 100 mA to 21 A at ...
Designed for enhanced reliability at great value. Suitable ...
Description:
Designed for enhanced reliability at great value. Suitable for applications requiring an operating force greater than 100g. Rated at 16A and available in 125°C versions (grey) or high temperature 150°C versions (black)Contact configurations include SPDT and SPST-NCAvailable with various actuator ...
Designed for enhanced reliability at great value. Suitable ...
Description:
Designed for enhanced reliability at great value. Suitable for applications requiring an operating force greater than 100g. Rated at 22A and high temperature 150°C Contact configurations include SPDTAvailable with various actuator options and fitted with standard 6.3mmx0.8mm quick connect terminals. ...
Available with a wide variety of actuators. Ultra ...
Description:
Available with a wide variety of actuators. Ultra small movement differential. Fitted with large brass screw terminals. Mechanical life of up to 1 million cycles. Case & cover material: Phenolic. Low operating forces. Actuator material: Stainless. Metric mounting holes.