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 typesThere 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.StandardsWe 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. 682-0790
Mfr. Part No.SS-01GL13-F
BrandOmron
TWD99.00
Each
units
Simulated Roller Lever Solder 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. 301-2286
Mfr. Part No.F4T7YC-UL
TWD198.00
Each
units
Simulated Roller Lever Solder 5 A @ 250 V ac SP-NO/NC IP40 0.7 N -40°C +85°C - Silver Glass Fibre Reinforced Nylon 10^7Operations 0.09N -40 → +85°C
RS Stock No. 804-6265
BrandRS PRO
TWD26.60
Each (In a Bag of 5)
units
Roller 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. 842-6378
Mfr. Part No.311SX2-T
BrandHoneywell
TWD581.00
Each
units
Straight Lever Solder 5 A SPDT - 0.31 N -54°C +121°C - Gold Plated Silver Phenolic 10000000Operations 0.05N -54 → +121°C
RS Stock No. 616-0221
Mfr. Part No.D3V-166-1C5
BrandOmron
TWD67.00
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. 686-6770
Mfr. Part No.SS-5GLT
BrandOmron
TWD66.20
Each (In a Bag of 5)
units
Hinge Lever Tab 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. 334-381
Mfr. Part No.1SX1-T
BrandHoneywell
TWD553.00
Each
units
Button Solder 7 A @ 250 V ac SPDT-NO/NC - 1.39 N -54°C +121°C - - - 1000000Operations 0.28N -54 → +121°C
RS Stock No. 124-4701
Mfr. Part No.26-804
BrandITW
TWD1,268.00
Each
units
Short Roller Lever - - DPDT-DB - 12 oz - +275°F - Silver - - - Maximum of +275°F
RS Stock No. 686-6998
Mfr. Part No.VX-5-1C23
BrandOmron
TWD121.00
Each
units
Pin Plunger Tab 5 A @ 250 V ac SPDT-NO/NC IP40 0.49 N -25°C +80°C - Silver Alloy - 50000000Operations 0.05N -25 → +80°C
RS Stock No. 337-829
Mfr. Part No.11SM3-T2
BrandHoneywell
TWD325.00
Each
units
Plunger Solder 5 A @ 250 V ac SPDT-NO/NC - 1.39 N - - - - - - 0.28N -
RS Stock No. 686-6758
Mfr. Part No.SS-5GL2T
BrandOmron
TWD73.80
Each (In a Bag of 5)
units
Roller Lever Tab 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. 820-7401
Mfr. Part No.13AC1
BrandHoneywell
TWD2,114.00
Each
units
Rod Screw 15 A @ 250 V ac SPDT - - -18°C +149°C - Silver Stainless Steel - - -18 → +149°C
RS Stock No. 173-9391
Mfr. Part No.V4NSY1UL
TWD203.70
Each (In a Bag of 50)
units
Short 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. 472-8112
Mfr. Part No.XCG5-S1-Z1
TWD165.00
Each
units
Roller Lever Tab 5 A @ 250 V ac - - 0.69 N - - - Gold; Silver - - 0.09N -
RS Stock No. 517-713
Mfr. Part No.DB1C-B1LC
BrandZF
TWD83.00
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. 682-2685
Mfr. Part No.SSG-01H
BrandOmron
TWD95.00
Each
units
Pin Plunger Solder 100 mA @ 30 V dc SPDT-NO/NC IP40 1.5 N -25°C +125°C - Gold Alloy - 10000000Operations 0.25N -25 → +125°C
RS Stock No. 794-4017
Mfr. Part No.SS5
BrandOmron
TWD42.00
Each
units
Pin Plunger Solder 5 A @ 125 V ac SPDT IP40 1.47 N -25°C +85°C - Silver - 30000000Operations 0.25N -25 → +85°C
RS Stock No. 706-4086
Mfr. Part No.E13-00J
BrandZF
TWD190.00
Each
units
Button Tab 15 A @ 250 V ac SPDT-NO/NC - 4.17 N - - - Silver Cadmium Oxide - - - -
RS Stock No. 472-8140
Mfr. Part No.XCG8-S1-Z1
TWD83.00
Each
units
Roller Lever PCB 6 A @ 250 V ac NO/NC IP40 0.7 N -40°C +85°C - Silver Phenolic Melamine 5 x 10^7Operations 0.09N -40 +85°C
RS Stock No. 161-6656
Mfr. Part No.83170-9IX1 F1
BrandCrouzet
TWD112.00
Each
units
Lever - 5 A @ 250 V ac NO/NC - 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