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 21 - 40 of 1830 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. 515-757
Mfr. Part No.V15T16-CZ100A03
BrandHoneywell
kr 25,90
Each
Units
Long Leaf Lever Tab 16 A @ 250 V ac SPDT-NO/NC - 0.98 N -25°C +125°C - Silver Cadmium Oxide Polybutylene Terephthalate PET Thermoplastic 5000000Operations 0.25N -25 → +125°C
RS Stock No. 320-512
Mfr. Part No.DC1C-C3LC
BrandZF
kr 92,12
Each
Units
Lever Through Hole 6 A @ 250 V ac SPDT-NO/NC IP6K7 0.69 N -40°C +105°C - Silver Alloy - 1000000Operations - -40 → +105°C
RS Stock No. 173-9382
Mfr. Part No.XCG3-J1-Z1
kr 12,973
Each (In a Bag of 200)
Units
Hinge Lever Solder 5 A @ 250 V ac - - 0.59 N - - - Gold; Silver - - 0.08N -
RS Stock No. 472-8061
Mfr. Part No.XCG3-J1-Z1
kr 56,11
Each
Units
Hinge Lever Solder 5 A @ 250 V ac - - 0.59 N - - - Gold; Silver - - 0.08N -
RS Stock No. 161-6656
Mfr. Part No.83170-9IX1 F1
BrandCrouzet
kr 34,90
Each
Units
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 Stock No. 820-7473
Mfr. Part No.BZ-2RQ1-A2
BrandHoneywell
kr 106,63
Each
Units
Plunger Screw - Single Pole Double Throw (SPDT) IP65 - - - - - - - - -
RS Stock No. 807-3930
Mfr. Part No.SS-5GL13-T
BrandOmron
kr 25,47
Each
Units
Simulated Roller Lever Solder Lug 5 A @ 125 V ac SPDT IP40 1.47 N -25°C +85°C - Silver - 30000000Operations 0.06N -25 → +85°C
RS Stock No. 472-8279
Mfr. Part No.V4NSUL
kr 90,53
Each
Units
Plunger Pre-wired 3 A @ 250 V ac SPDT-NO/NC IP67 2.5 N -40°C +85°C - Fine Silver Glass Fibre Reinforced Nylon 5000000Operations 0.3N -40 → +85°C
RS Stock No. 682-2146
Mfr. Part No.D2SW-3L3M
BrandOmron
kr 78,46
Each
Units
Simulated Roller Lever Pre-wired 3 A @ 30 V dc SPDT-NO/NC IP67 0.59 N -40°C +85°C - Silver - 5000000Operations 0.06N -40 → +85°C
RS Stock No. 883-1704
Mfr. Part No.XGT2C-86-P23Z1
kr 41,487
Each (In a Pack of 10)
Units
- Faston 26 A SP-CO IP40 - -40°C +150°C - Silver, Silver Cadmium Oxide Melamine-Formaldehyd 5000000Cycles - -40 → +150°C
RS Stock No. 173-9300
Mfr. Part No.V3S-UL
kr 157,49
Each (In a Bag of 50)
Units
Plunger Pre-wired 5 A @ 250 V ac SP-NO/NC IP67 3.9 N -40°C +85°C - Silver Glass Fibre Reinforced Nylon 10^6Operations 1.1N -40 → +85°C
RS Stock No. 807-4419
Mfr. Part No.V15G61C25KBYOMI
BrandOmron
kr 57,82
Each
Units
Hinge Roller Lever Quick Connect 15 A @ 250 V ac SPDT IP40 200 gf -25°C +80°C - Silver Alloy Thermosetting 100000Operations 14gf -25 → +80°C
RS Stock No. 173-8424
Mfr. Part No.AV4024
BrandPanasonic
kr 25,734
Each (In a Box of 50)
Units
Hinge Lever Solder 500 mA @ 30 V dc SPDT - 0.25 N -25°C +80°C - Silver Plated - 3 x 10^5Operations - -25 → +80°C
RS Stock No. 517-785
Mfr. Part No.GPTCNA01
BrandZF
kr 59,31
Each
Units
Button Screw 15 A @ 250 V ac SPDT-NO/NC - 3.42 N -20°C +85°C - Silver Alloy - 1000000Operations 1.11N -20 → +85°C
RS Stock No. 804-6221
BrandRS PRO
kr 38,31
Each
Units
Long Roller Lever 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. 699-4471
Mfr. Part No.AV4024
BrandPanasonic
kr 17,59
Each
Units
Hinge Lever Solder 500 mA @ 30 V dc SPDT - 0.25 N -25°C +80°C - Silver Plated - 3 x 10^5Operations - -25 → +80°C
RS Stock No. 517-599
Mfr. Part No.DB1C-B1SC
BrandZF
kr 21,80
Each
Units
Simulated Roller Lever Tab 6 A @ 250 V ac SPDT-NO/NC - 0.54 N -40°C +120°C - Gold; Silver Alloy - 15000000Operations - -40 → +120°C
RS Stock No. 616-0243
Mfr. Part No.D3V-165-1C5
BrandOmron
kr 37,89
Each
Units
Short Roller Lever Tab 16 A @ 250 V ac SPDT-NO/NC IP40 - -25°C +105°C - Silver Alloy - 10000000Operations - -25 → +105°C
RS Stock No. 161-6713
Mfr. Part No.83161-3 IW3 F2
BrandCrouzet
kr 48,55
Each
Units
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 Stock No. 848-6320
Mfr. Part No.DC2C-C3LC
BrandZF
kr 68,99
Each
Units
Lever Lead 10 A @ 250 V ac SPDT IP67 340 cN -40°C +120°C V0 Housing AgNi PBT/PET 1000000Operations - -40 → +120°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.