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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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. 515-690
Mfr. Part No.V15T16-EZ100A06
BrandHoneywell
€4.76
Each
units
Roller 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. 159-4433
Mfr. Part No.D459-V3LL
BrandZF
€3.18
Each (In a Pack of 5)
units
Long Leaf Lever Tab 16 A @ 250 V ac SPDT-NO/NC - 0.216 N -40°C +85°C - Silver Alloy - - - -40 → +85°C
RS Stock No. 150-710
Mfr. Part No.DC1C-A1LD
BrandZF
€4.83
Each
units
Long Hinge Lever Solder 6 A @ 250 V ac SPDT-NO/NC IP6K7 - -40°C +120°C - Silver Alloy - 1000000Operations - -40 → +120°C
RS Stock No. 517-911
Mfr. Part No.GPTCRH01
BrandZF
€17.20
Each
units
Plunger 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. 515-767
Mfr. Part No.V15H22-CZ100A06
BrandHoneywell
€5.69
Each
units
Roller Lever - 22 A @ 250 V ac SPDT-NO/NC - - - - - - - - - -
RS Stock No. 515-739
Mfr. Part No.V15T16-CZ100
BrandHoneywell
€4.23
Each
units
Plunger 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. 103-1639
Mfr. Part No.V-163-1C5(R)
BrandOmron
€5.85
Each
units
Long Leaf Lever Tab 16 A @ 250 V ac SPDT-NO/NC IP40 1.96 N -25°C +80°C - Silver Alloy - 50000000Operations 0.06N -25 → +80°C
RS Stock No. 159-4411
Mfr. Part No.D459-V3AA
BrandZF
€2.074
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. 103-1667
Mfr. Part No.V-166-1C5(R)
BrandOmron
€4.33
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. 804-6262
BrandRS PRO
€1.004
Each (In a Bag of 5)
units
Lever Solder 2 A @ 250 V ac SP - 50 gms -25°C +85°C - Silver Glass Filled Thermoplastic 500000 Operations @ 60 cpm 2.5gf -25 → +85°C
RS Stock No. 682-2746
Mfr. Part No.V-152-1C25
BrandOmron
€3.24
Each
units
Hinge Lever Tab 15 A @ 250 V ac SPDT-NO/NC IP40 1.23 N -25°C +80°C - Silver Alloy - 50000000Operations 0.14N -25 → +80°C
RS Stock No. 173-9381
Mfr. Part No.XCG3-Z1
€0.91
Each (In a Bag of 200)
units
Plunger Solder 5 A @ 250 V ac - - 1.69 N - - - Silver - - 0.3N -
RS Stock No. 515-701
Mfr. Part No.V15T16-EZ100A02
BrandHoneywell
€2.85
Each
units
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. 157-1036
Mfr. Part No.V4NS
€9.49
Each
units
Plunger Pre-wired 5 A @ 250 V ac SP-NO/NC IP67 2.5 N -10°C +85°C - Fine Silver Glass Fibre Reinforced Nylon 3 x 10^6Operations 0.3N -10 → +85°C
RS Stock No. 472-8055
Mfr. Part No.XCG3-Z1
€5.15
Each
units
Plunger Solder 5 A @ 250 V ac - - 1.69 N - - - Silver - - 0.3N -
RS Stock No. 338-298
Mfr. Part No.BZ-2RW80-A2
BrandHoneywell
€19.41
Each
units
Lever Screw 15 A @ 125 V ac SPDT-NO/NC - 0.7 N - - - - - - 0.14N -
RS Stock No. 682-0819
Mfr. Part No.SS-01GL2-FD
BrandOmron
€0.86
Each
units
Roller Lever PCB 100 mA @ 30 V dc SPDT-NO/NC IP40 0.16 N -25°C +85°C - Gold Alloy - 30000000Operations 0.02N -25 → +85°C
RS Stock No. 173-9392
Mfr. Part No.V4NSYRUL
€5.51
Each (In a Bag of 50)
units
Roller Lever Pre-wired 3 A @ 250 V ac SPDT-NO/NC IP67 0.9 N -40°C +85°C - Fine Silver Glass Fibre Reinforced Nylon 5000000Operations 0.07N -40 → +85°C
RS Stock No. 472-8207
Mfr. Part No.XGG2-88Z1
€5.40
Each
units
Button Tab 16 A @ 250 V ac SPDT-NO/NC IP40 3.2 N -40°C +85°C - Fine Silver; Silver Nickel Melamine Formaldehyd Thermosetting 50000000Operations 0.4N -40 → +85°C
RS Stock No. 472-8291
Mfr. Part No.V4NSYRUL
€8.51
Each
units
Roller Lever Pre-wired 3 A @ 250 V ac SPDT-NO/NC IP67 0.9 N -40°C +85°C - Fine Silver Glass Fibre Reinforced Nylon 5000000Operations 0.07N -40 → +85°C
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