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 Hazardous Area Certification
RS Stock No. 699-0375
Mfr. Part No.ABV1616503
BrandPanasonic
MYR84.24
Each
units
Roller Lever Pre-wired 5 A @ 250 V ac SPDT IP67 1.18 N -40°C +85°C - Silver Nickel Alloy PPHS 5 x 10^6Operations 0.13N -
RS Stock No. 173-8340
Mfr. Part No.ABV1616503
BrandPanasonic
MYR48.338
Each (In a Box of 50)
units
Roller Lever Pre-wired 5 A @ 250 V ac SPDT IP67 1.18 N -40°C +85°C - Silver Nickel Alloy PPHS 5 x 10^6Operations 0.13N -
RS Stock No. 698-9707
Mfr. Part No.ABS141151
BrandPanasonic
MYR25.63
Each
units
Short Hinge Lever Solder 100 mA @ 30 V dc SPDT IP50 0.59 N -40°C +85°C - Triple Clad Gold - 5 x 10^6Operations 0.039N -
RS Stock No. 401-6598
Mfr. Part No.ESE24SH1
BrandPanasonic
MYR3.364
Each (In a Pack of 5)
units
Lever - 10 mA @ 5 V dc SPDT-NO/NC - - -10°C +70°C - - - - - -
RS Stock No. 173-8253
Mfr. Part No.ABS141151
BrandPanasonic
MYR20.482
Each (In a Box of 100)
units
Short Hinge Lever Solder 100 mA @ 30 V dc SPDT IP50 0.59 N -40°C +85°C - Triple Clad Gold - 5 x 10^6Operations 0.039N -
RS Stock No. 173-8298
Mfr. Part No.ASQ10410
BrandPanasonic
MYR16.48
Each (In a Box of 100)
units
Pin Plunger Solder 100 mA @ 30 V dc SPDT IP67 1.5 N -40°C +85°C - Gold Plated - - - -
RS Stock No. 699-0104
Mfr. Part No.ASQ10410
BrandPanasonic
MYR16.46
Each
units
Pin Plunger Solder 100 mA @ 30 V dc SPDT IP67 1.5 N -40°C +85°C - Gold Plated - - - -
RS Stock No. 173-8402
Mfr. Part No.AV404461
BrandPanasonic
MYR17.283
Each (In a Box of 50)
units
Simulated Roller Lever Solder 100 mA @ 30 V dc SPDT - 0.29 N -25°C +80°C - Gold Plated - 3 x 10^5Operations - -
RS Stock No. 699-4475
Mfr. Part No.AV404461
BrandPanasonic
MYR16.96
Each
units
Simulated Roller Lever Solder 100 mA @ 30 V dc SPDT - 0.29 N -25°C +80°C - Gold Plated - 3 x 10^5Operations - -
RS Stock No. 173-8249
Mfr. Part No.ABS111650
BrandPanasonic
MYR16.48
Each (In a Box of 100)
units
Roller Lever Tab 2 A @ 30 V dc SPDT IP50 0.59 N -40°C +85°C - Silver Nickel Alloy - 5 x 10^6Operations 0.039N -
RS Stock No. 698-9678
Mfr. Part No.ABS111650
BrandPanasonic
MYR21.96
Each
units
Roller Lever Tab 2 A @ 30 V dc SPDT IP50 0.59 N -40°C +85°C - Silver Nickel Alloy - 5 x 10^6Operations 0.039N -
RS Stock No. 699-0586
Mfr. Part No.AVT342461
BrandPanasonic
MYR7.45
Each
units
Hinge Lever PCB 100 mA @ 30 V dc SPDT - 0.34 N -25°C +85°C - Triple Clad Gold - 5 x 10^5Operations 0.029N -
RS Stock No. 699-4686
Mfr. Part No.AVM31453
BrandPanasonic
MYR9.68
Each
units
Hinge Lever Solder 5 A @ 250 V ac SPDT - 0.54 N -25°C +85°C - Silver Nickel Alloy - 10^7Operations 0.034N -
RS Stock No. 699-0117
Mfr. Part No.ASQ10418
BrandPanasonic
MYR24.74
Each
units
Simulated Roller Lever Solder 100 mA @ 30 V dc SPDT IP67 1.5 N -40°C +85°C - Gold Plated - - - -
RS Stock No. 173-8285
Mfr. Part No.ABS561040
BrandPanasonic
MYR29.429
Each (In a Box of 50)
units
Pin Plunger Through Hole 2 A @ 30 V dc SPDT IP67 0.98 N -40°C +85°C - Silver Nickel Alloy - 5 x 10^6Operations 0.15N -
RS Stock No. 699-0047
Mfr. Part No.ABS561040
BrandPanasonic
MYR28.82
Each
units
Pin Plunger Through Hole 2 A @ 30 V dc SPDT IP67 0.98 N -40°C +85°C - Silver Nickel Alloy - 5 x 10^6Operations 0.15N -
RS Stock No. 173-8333
Mfr. Part No.ABV161250
BrandPanasonic
MYR41.199
Each (In a Box of 50)
units
Hinge Lever Pre-wired 5 A @ 250 V ac SPDT IP67 1.18 N -40°C +85°C - Silver Nickel Alloy PPHS 5 x 10^6Operations 0.13N -
RS Stock No. 699-0325
Mfr. Part No.ABV161250
BrandPanasonic
MYR50.32
Each
units
Hinge Lever Pre-wired 5 A @ 250 V ac SPDT IP67 1.18 N -40°C +85°C - Silver Nickel Alloy PPHS 5 x 10^6Operations 0.13N -
RS Stock No. 173-8506
Mfr. Part No.AVT342461
BrandPanasonic
MYR7.534
Each (In a Box of 100)
units
Hinge Lever PCB 100 mA @ 30 V dc SPDT - 0.34 N -25°C +85°C - Triple Clad Gold - 5 x 10^5Operations 0.029N -
RS Stock No. 173-8301
Mfr. Part No.ASQ10418
BrandPanasonic
MYR18.481
Each (In a Box of 100)
units
Simulated Roller Lever Solder 100 mA @ 30 V dc SPDT IP67 1.5 N -40°C +85°C - Gold Plated - - - -