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. 157-1014
Mfr. Part No.V4NT9
PHP299.60
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. 173-9354
Mfr. Part No.42393
PHP91.653
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. 173-9367
Mfr. Part No.01710
PHP4,162.416
Each (In a Bag of 14)
units
Plunger Screw 15 A @ 250 V ac SP-NO/NC IP54 7.2 N -10°C +85°C - Silver Zinc Alloy 10^6Operations 1.7N -10 → +85°C
RS Stock No. 414-5646
Mfr. Part No.4BR
PHP4,162.42
Each
units
Plunger Screw 15 A @ 250 V ac SP-NO/NC IP54 7.2 N -10°C +85°C - Silver Zinc Alloy 10^6Operations 1.7N -10 → +85°C
RS Stock No. 173-9379
Mfr. Part No.V4LSA2
PHP426.058
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. 456-4621
Mfr. Part No.V4LSA2
PHP626.44
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. 173-9300
Mfr. Part No.V3S-UL
PHP1,684.40
Each (In a Bag of 50)
units
Plunger Pre-wired 5 A @ 250 V ac SP-NO/NC IP67 3.9 N -40°C +85°C - Silver Glass Fibre Reinforced Nylon 10^6Operations 1.1N -40 → +85°C
RS Stock No. 317-998
Mfr. Part No.V3S-UL
PHP1,828.70
Each
units
Plunger Pre-wired 5 A @ 250 V ac SP-NO/NC IP67 3.9 N -40°C +85°C - Silver Glass Fibre Reinforced Nylon 10^6Operations 1.1N -40 → +85°C
RS Stock No. 173-9398
Mfr. Part No.XCG8-Z1
PHP47.36
Each (In a Bag of 200)
units
Plunger PCB 6 A @ 250 V ac NO/NC IP40 1.7 N -40°C +85°C - Silver Phenolic Melamine 5 x 10^7Operations 0.3N -40 → +85°C
RS Stock No. 173-9397
Mfr. Part No.42394
PHP74.706
Each (In a Bag of 200)
units
Plunger Solder - SP-NO/NC IP40 1.4 N -40°C +85°C - Silver Glass Fibre Reinforced Nylon 5 x 10^6Operations 0.28N -40 → +85°C
RS Stock No. 456-4637
Mfr. Part No.V4LS
PHP593.20
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
RS Stock No. 472-8128
Mfr. Part No.XCG8-Z1
PHP134.09
Each
units
Plunger PCB 6 A @ 250 V ac NO/NC IP40 1.7 N -40°C +85°C - Silver Phenolic Melamine 5 x 10^7Operations 0.3N -40 → +85°C
RS Stock No. 301-2214
Mfr. Part No.V3F
PHP1,405.41
Each
units
Plunger Screw 1 A @ 250 V ac SPDT IP40 3.3 N -40°C +240°C - Silver Polyphenylene Sulphide 10^7Operations 1.1N -40 → +240°C
RS Stock No. 157-1008
Mfr. Part No.V4NT7
PHP185.99
Each
units
Plunger Solder - SP-NO/NC IP40 1.4 N -40°C +85°C - Silver Glass Fibre Reinforced Nylon 5 x 10^6Operations 0.28N -40 → +85°C
RS Stock No. 472-8308
Mfr. Part No.V4NST7UL
PHP338.51
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. 173-9373
Mfr. Part No.44710
PHP593.20
Each (In a Bag of 20)
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
RS Stock No. 418-3288
Mfr. Part No.44607
PHP3,034.78
Each
units
Button Tab 15 A @ 250 V ac SPDT IP67 5 N -10°C +85°C - - - 10^6Operations 1.7N -10 → +85°C
RS Stock No. 173-9391
Mfr. Part No.V4NSY1UL
PHP327.944
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. 472-8257
Mfr. Part No.XGG2-88-S20Z1
PHP502.35
Each
units
Roller Lever Tab 16 A @ 250 V ac SPDT-NO/NC IP40 3.2 N -40°C +85°C - Fine Silver; Silver Nickel Melamine Formaldehyd Thermosetting 50000000Operations 0.37N -40 → +85°C
RS Stock No. 472-8285
Mfr. Part No.V4NSY1UL
PHP443.57
Each
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