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. 157-1036
Mfr. Part No.V4NS
MYR38.05
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. 706-4304
Mfr. Part No.DB1C-C1RB
BrandZF
MYR16.57
Each
units
Roller Lever Through Hole 6 A @ 250 V ac SPDT-NO/NC - 0.64 N -40°C +120°C - Gold; Silver Alloy - 15000000Operations - -40 → +120°C
RS Stock No. 401-6598
Mfr. Part No.ESE24SH1
BrandPanasonic
MYR3.464
Each (In a Pack of 5)
units
Lever - 10 mA @ 5 V dc SPDT-NO/NC - - -10°C +70°C - - - - - -10 → +70°C
RS Stock No. 150-710
Mfr. Part No.DC1C-A1LD
BrandZF
MYR8.82
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. 682-2099
Mfr. Part No.D2SW-01MS
BrandOmron
MYR30.75
Each
units
Pin Plunger Pre-wired 100 mA @ 30 V dc SPDT-NO/NC IP67 1.77 N -40°C +85°C - Gold Alloy - 5000000Operations 0.29N -40 → +85°C
RS Stock No. 698-9707
Mfr. Part No.ABS141151
BrandPanasonic
MYR26.40
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 -40 → +85°C
RS Stock No. 686-6840
Mfr. Part No.SS-5GL13
BrandOmron
MYR8.134
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. 472-8263
Mfr. Part No.XGG2-88-S21Z1
MYR25.99
Each
units
Roller Lever Tab 15 A @ 250 V ac - - 1.54 N - - - Gold; Silver - - 0.18N -
RS Stock No. 341-6509
Mfr. Part No.43780
MYR249.41
Each
units
Lever Pre-wired 10 A @ 250 V ac SP-NO/NC IP67 3 N -10°C +85°C - Silver Zinc 10^6Operations 0.6N -10 → +85°C
RS Stock No. 173-9359
Mfr. Part No.43780
MYR259.038
Each (In a Bag of 20)
units
Lever Pre-wired 10 A @ 250 V ac SP-NO/NC IP67 3 N -10°C +85°C - Silver Zinc 10^6Operations 0.6N -10 → +85°C
RS Stock No. 173-8253
Mfr. Part No.ABS141151
BrandPanasonic
MYR21.096
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 -40 → +85°C
RS Stock No. 290-0441
Mfr. Part No.DB2C-A1RC
BrandZF
MYR13.62
Each
units
Roller Lever Solder 10.1 A @ 250 V ac SPDT-NO/NC - 0.93 N -40°C +120°C - Gold; Silver Alloy - 15000000Operations - -40 → +120°C
RS Stock No. 616-0243
Mfr. Part No.D3V-165-1C5
BrandOmron
MYR16.07
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. 321-8226
Mfr. Part No.83 160 703
BrandCrouzet
MYR49.11
Each
units
Plunger Tab 6 A @ 250 V ac SP-NC - 4 N -40°C +85°C - Nickel Silver Polyamide 10^7Operations 1.5N -40 → +85°C
RS Stock No. 686-7017
Mfr. Part No.VX-55-1A3
BrandOmron
MYR24.95
Each
units
Short Roller Lever Solder 5 A @ 250 V ac SPDT-NO/NC IP40 0.59 N -25°C +80°C - Silver Alloy - 50000000Operations 0.04N -25 → +80°C
RS Stock No. 616-0114
Mfr. Part No.D2F-L
BrandOmron
MYR8.992
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. 616-0170
Mfr. Part No.D2MQ-1-TR
BrandOmron
MYR14.86
Each
units
Plunger Through Hole 500 mA @ 30 V dc SPDT-NO/NC IP40 1.18 N -15°C +70°C - Silver Plated - 30000Operations 0.19N -15 → +70°C
RS Stock No. 616-0344
Mfr. Part No.D2MQ-1L-TR
BrandOmron
MYR12.93
Each
units
Lever Through Hole 500 mA @ 30 V dc SPDT-NO/NC IP40 0.59 N -15°C +70°C - Silver Plated - 30000Operations 0.08N -15 → +70°C
RS Stock No. 173-8298
Mfr. Part No.ASQ10410
BrandPanasonic
MYR16.975
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 - - - -40 → +85°C
RS Stock No. 173-9362
Mfr. Part No.V3SYR1-UL
MYR95.556
Each (In a Bag of 50)
units
Roller Lever Pre-wired 5 A @ 250 V ac SP-NO/NC IP67 2.3 N -40°C +85°C - Silver Glass Fibre Reinforced Nylon 10^6Operations 0.42N -40 → +85°C
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