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 1726 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. 472-8308
Mfr. Part No.V4NST7UL
SGD6.04
Each
units
Plunger Solder 5 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. 616-0085
Mfr. Part No.SSG-5L1P
BrandOmron
SGD3.93
Each
units
Hinge Lever PCB 5 A @ 125 V ac SPDT-NO/NC IP40 0.6 N -25°C +125°C - Silver - 10000000Operations 0.06N -25 → +125°C
RS Stock No. 173-9379
Mfr. Part No.V4LSA2
SGD10.072
Each (In a Bag of 20)
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. 159-4607
Mfr. Part No.DB1C-A1LD
BrandZF
SGD7.18
Each
units
Long Hinge Lever Solder 6 A @ 250 V ac SPDT-NO/NC - 0.18 N -40°C +120°C - Gold; Silver Alloy - 15000000Operations - -40 → +120°C
RS Stock No. 456-4621
Mfr. Part No.44712
SGD10.80
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. 682-2774
Mfr. Part No.V-155-1C25
BrandOmron
SGD6.07
Each
units
Short Roller Lever Tab 15 A @ 250 V ac SPDT-NO/NC IP40 2.35 N -25°C +80°C - Silver Alloy - 50000000Operations 0.49N -25 → +80°C
RS Stock No. 173-9354
Mfr. Part No.42393
SGD2.443
Each (In a Bag of 500)
units
Plunger Solder 5 A @ 250 V ac SPDT IP67 0.5 N -40°C +85°C - - - 3 x 10^6Operations 0.1N -40 → +85°C
RS Stock No. 842-1887
Mfr. Part No.V7-7B17D8-201
BrandHoneywell
SGD4.49
Each
units
Roller Lever Quick Connect 11 A @ 250 V ac SPDT - 2.78 N -40°C +85°C V7 Housing Silver/Gold Plated/Gold Alloy Thermoplastic 10000000Cycles 0.28N -40 → +85°C
RS Stock No. 159-4411
Mfr. Part No.D459-V3AA
BrandZF
SGD2.768
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. 157-1014
Mfr. Part No.V4NT9
SGD6.56
Each
units
Plunger Solder 5 A @ 250 V ac SPDT IP67 0.5 N -40°C +85°C - - - 3 x 10^6Operations 0.1N -40 → +85°C
RS Stock No. 517-567
Mfr. Part No.DB3C-A1LB
BrandZF
SGD3.58
Each
units
Short Lever Solder 100 mA @ 30 V dc SPDT-NO/NC - 0.59 N -40°C +120°C - Gold; Silver Alloy - 15000000Operations - -40 → +120°C
RS Stock No. 794-4020
Mfr. Part No.V1551C5
BrandOmron
SGD6.39
Each
units
Roller Lever Quick Connect 15 A @ 250 V ac SPDT IP40 2.35 N -25°C +80°C - Silver Alloy - 50000000Operations - -25 → +80°C
RS Stock No. 472-8263
Mfr. Part No.XGG2-88-S21Z1
SGD11.41
Each
units
Roller Lever Tab 15 A @ 250 V ac - - 1.54 N - - - Gold; Silver - - 0.18N -
RS Stock No. 616-0221
Mfr. Part No.D3V-166-1C5
BrandOmron
SGD3.03
Each
units
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. 699-0268
Mfr. Part No.ABV121651
BrandPanasonic
SGD10.75
Each
units
Roller Lever Tab 3 A @ 250 V ac SPDT IP50 1.18 N -40°C +85°C - Gold Clad Silver Nickel Alloy PPHS 5 x 10^6Operations 0.13N -40 → +85°C
RS Stock No. 616-0596
Mfr. Part No.D2SW-3L2M
BrandOmron
SGD13.91
Each
units
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. 173-8326
Mfr. Part No.ABV121651
BrandPanasonic
SGD10.263
Each (In a Box of 50)
units
Roller Lever Tab 3 A @ 250 V ac SPDT IP50 1.18 N -40°C +85°C - Gold Clad Silver Nickel Alloy PPHS 5 x 10^6Operations 0.13N -40 → +85°C
RS Stock No. 682-1493
Mfr. Part No.D2F-01F-T
BrandOmron
SGD2.28
Each (In a Pack of 5)
units
Pin Plunger PCB 100 mA @ 30 V dc SPDT-NO/NC IP40 0.74 N -25°C +65°C - Gold Alloy - 1000000Operations 0.05N -25 → +65°C
RS Stock No. 517-713
Mfr. Part No.DB1C-B1LC
BrandZF
SGD4.37
Each
units
Hinge Lever Tab 6 A @ 250 V ac SPDT-NO/NC - 0.49 N -40°C +120°C - Gold; Silver Alloy - 15000000Operations - -40 → +120°C
RS Stock No. 456-4637
Mfr. Part No.V4LS
SGD13.09
Each
units
Plunger Pre-wired 5 A @ 250 V ac SP-NO/NC IP6K7 2.5 N -40°C +85°C - Fine Silver Glass Fibre Reinforced PA 10^5Operations 0.5N -40 → +85°C
Related Products
The Crouzet Microswitch has an electrical rating of ...
Description:
The Crouzet Microswitch has an electrical rating of 6A at 250VAC with DPST contact configuration. It has silver contact material and polyester case material with a button actuator. Operating force is 3NWire lead type terminalsOperating temperature ranges between 0°C and ...
The Crouzet sealed Microswitch has an electrical rating ...
Description:
The Crouzet sealed Microswitch has an electrical rating of 5A at 250VAC with SPDT contact configuration. It has silver contact material and nitrile case material with a standard actuator. Operating temperature ranges between 0°C and 85°COperating force is 7.5NMechanical life ...
These miniature microswitches are sealed and have a ...
Description:
These miniature microswitches are sealed and have a high environmental resistance. Microswitches with wire leads conform to IP67. Elastomer double moulding technology and ultrasonic swaging technology contribute to uniform sealingTypical applications include home appliances and automotive.
These subminiature high precision microswitches have are of ...
Description:
These subminiature high precision microswitches have are of a flux resistant construction with integrally moulded terminals and are available with a variety of actuator and terminal styles. Typical applications include communication equipment, vending machines, security systems, data systems and medical ...