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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รายละเอียดสินค้า / Description ราคา / 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. 804-6265
Brand :RS PRO
THB61.466
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. 797-2514
Brand :RS PRO
THB335.09
Each
Units
Roller Lever Screw 15 A @ 250 V ac SP-CO - 213 gms - - - Fine Silver Plastic 1000000Operations 35gf -
RS Stock No. 804-6262
Brand :RS PRO
THB59.08
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. 804-6275
Brand :RS PRO
THB478.51
Each
Units
Button Quick Connect 16 A @ 250 V ac DP - 800 gms - +85°C - Silver - - 160gf Maximum of +85°C
RS Stock No. 804-6225
Brand :RS PRO
THB125.80
Each
Units
Short Lever Quick Connect 16 A @ 250 V ac SP-CO - 400 gms -55 (Environmental)°C +85°C V3 Housing Silver on Copper Glass Filled Thermoplastic 10000000Operations 80gf -55 → +85 (Environmental)°C
RS Stock No. 804-6219
Brand :RS PRO
THB157.67
Each
Units
Long Straight Lever Quick Connect 16 A @ 250 V ac SP-CO - 400 gms -55 (Environmental)°C +85°C V3 Housing Silver on Copper Glass Filled Thermoplastic 10000000Operations 80gf -55 → +85 (Environmental)°C
RS Stock No. 804-6192
Brand :RS PRO
THB150.14
Each
Units
Plunger Solder 16 A @ 250 V ac SP-CO - 400 gms -55 (Environmental)°C +85°C V3 Housing Silver on Copper Glass Filled Thermoplastic 10000000Operations 80gf -55 → +85 (Environmental)°C
RS Stock No. 804-6253
Brand :RS PRO
THB83.698
Each (In a Bag of 5)
Units
Plunger Solder 2 A @ 250 V ac SP - 100 gms -25°C +85°C - Silver Glass Filled Thermoplastic 500000 Operations @ 60 cpm 15gf -25 → +85°C
RS Stock No. 333-322
Brand :RS PRO
THB1,271.02
Each
Units
Roller Lever Solder 4 A @ 28 V dc SPDT - 1.952 N -54°C +121°C - Silver Plated - 10⁷Operations 0.988N -54 → +121°C
RS Stock No. 804-6278
Brand :RS PRO
THB50.048
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. 797-2567
Brand :RS PRO
THB478.51
Each
Units
Plunger Quick Connect 16 A @ 250 V ac DP-CO - 800 gms - +85°C - Silver - - 160gf Maximum of +85°C
RS Stock No. 797-2520
Brand :RS PRO
THB380.84
Each
Units
Lever Screw 15 A @ 250 V ac SP-CO - 185 gms - - - Fine Silver Plastic 1000000Operations 35gf -
RS Stock No. 804-6243
Brand :RS PRO
THB391.46
Each
Units
Button Quick Connect 16 A @ 250 V ac DP - 800 gms - +85°C - Silver - - 160gf Maximum of +85°C
RS Stock No. 797-2536
Brand :RS PRO
THB642.92
Each
Units
Spring Plunger Screw 15 A @ 250 V ac SP-CO - 420 gms - - - Fine Silver Plastic 1000000Operations 170gf -
RS Stock No. 797-2523
Brand :RS PRO
THB454.91
Each
Units
Plunger Screw 15 A @ 250 V ac SP-CO - 428 gms - - - Fine Silver Plastic 1000000Operations 173gf -
RS Stock No. 804-6247
Brand :RS PRO
THB255.36
Each
Units
Button Quick Connect 16 A @ 250 V ac DP - 800 gms - +85°C - Silver - - 160gf Maximum of +85°C
RS Stock No. 804-6203
Brand :RS PRO
THB148.06
Each
Units
Long Straight Lever Quick Connect 16 A @ 250 V ac SP-CO - 400 gms -55 (Environmental)°C +85°C V3 Housing Silver on Copper Glass Filled Thermoplastic 10000000Operations 80gf -55 → +85 (Environmental)°C
RS Stock No. 797-2505
Brand :RS PRO
THB731.76
Each
Units
Plunger Screw 15 A @ 250 V ac SP-CO - 720 gms - - - Fine Silver Metal 1000000Operations 170gf -
RS Stock No. 804-6199
Brand :RS PRO
THB430.50
Each
Units
Spring Lever Screw 15 A @ 250 V ac SP - 170 gms - - - Silver - 1000000Operations 21gf -
RS Stock No. 797-2555
Brand :RS PRO
THB474.37
Each
Units
Lever Solder 10 A @ 250 V ac DP - 100 gms -65°C +125°C - Silver - 1000000Operations 15gf -65 → +125°C