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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Beskrivning Pris 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-artikelnummer 173-9356
Tillv. art.nrF1NST8A1
VarumärkeSaia-Burgess
32,614 kr
Each (In a Bag of 100)
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Lever Through Hole 1 A @ 250 V ac SP-NO/NC IP54 0.6 N -40°C +85°C - Fine Silver Polyamide 10^7Operations 0.09N -40 → +85°C
RS-artikelnummer 301-2236
Tillv. art.nrF1NST8A1
VarumärkeSaia-Burgess
75,61 kr
Each
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Lever Through Hole 1 A @ 250 V ac SP-NO/NC IP54 0.6 N -40°C +85°C - Fine Silver Polyamide 10^7Operations 0.09N -40 → +85°C
RS-artikelnummer 159-4562
Tillv. art.nrD45U-V3RD
VarumärkeZF
30,60 kr
Each
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Roller Lever Tab 16 A @ 250 V ac SPDT-NO/NC - 0.49 N -40°C +150°C - Silver Alloy - - - -40 → +150°C
RS-artikelnummer 682-1519
Tillv. art.nrD2F-F
VarumärkeOmron
16,338 kr
Each (In a Pack of 5)
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Pin Plunger PCB 1 A @ 125 V ac SPDT-NO/NC IP40 0.74 N -25°C +65°C - Silver Alloy - 1000000Operations 0.05N -25 → +65°C
RS-artikelnummer 706-4193
Tillv. art.nrDG23-B3RA
VarumärkeZF
53,66 kr
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Roller Lever Left Angle PCB 50 mA @ 30 V dc SPDT-NO/NC - 0.59 N -25°C +85°C - Gold Plated - 1000000Operations - -25 → +85°C
RS-artikelnummer 616-0300
Tillv. art.nrD2VW-5L2A-1
VarumärkeOmron
68,47 kr
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Roller Lever Solder 5 A @ 250 V ac SPDT-NO/NC IP67 2.25 N -40°C +85°C - Silver Alloy - 10000000Operations 0.2N -40 → +85°C
RS-artikelnummer 472-8285
Tillv. art.nrV4NSY1UL
VarumärkeSaia-Burgess
80,48 kr
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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-artikelnummer 173-8293
Tillv. art.nrASQ10230
VarumärkePanasonic
81,823 kr
Each (In a Box of 100)
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Pin Plunger Pre-wired 100 mA @ 30 V dc SPST-NO IP67 1.5 N -40°C +85°C - Gold Plated - - - -40 → +85°C
RS-artikelnummer 699-0088
Tillv. art.nrASQ10230
VarumärkePanasonic
111,99 kr
Each
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Pin Plunger Pre-wired 100 mA @ 30 V dc SPST-NO IP67 1.5 N -40°C +85°C - Gold Plated - - - -40 → +85°C
RS-artikelnummer 173-9391
Tillv. art.nrV4NSY1UL
VarumärkeSaia-Burgess
59,772 kr
Each (In a Bag of 50)
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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-artikelnummer 161-7306
Tillv. art.nr83 123 0-2,2M
VarumärkeCrouzet
733,73 kr
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Standard - 5 A @ 250 V ac Single Pole Double Throw (SPDT) IP66 7.5 N 0°C +85°C - Silver Nitrile 2 x 10^6Operations 1.5N 0 → +85°C
RS-artikelnummer 159-4590A
Tillv. art.nrDB1C-A1LB
VarumärkeZF
16,952 kr
Each (In a Pack of 25)
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Short Lever Solder 6 A @ 250 V ac SPDT-NO/NC - 0.59 N -40°C +120°C - Gold; Silver Alloy - 15000000Operations - -40 → +120°C
RS-artikelnummer 159-4590
Tillv. art.nrDB1C-A1LB
VarumärkeZF
40,74 kr
Each
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Short Lever Solder 6 A @ 250 V ac SPDT-NO/NC IP50 0.59 N -40°C +120°C - Gold; Silver Alloy - 15000000Operations - -40 → +120°C
RS-artikelnummer 863-7085
Tillv. art.nrZMA00A080L04PC
VarumärkeC & K
7,838 kr
Each (In a Bag of 5)
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Lever - 100 mA SPDT - - -40°C +85°C - Silver - - - -
RS-artikelnummer 173-8249
Tillv. art.nrABS111650
VarumärkePanasonic
31,044 kr
Each (In a Box of 100)
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Roller Lever Tab 2 A @ 30 V dc SPDT IP50 0.59 N -40°C +85°C - Silver Nickel Alloy - 5 x 10^6Operations 0.039N -40 → +85°C
RS-artikelnummer 698-9678
Tillv. art.nrABS111650
VarumärkePanasonic
65,89 kr
Each
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Roller Lever Tab 2 A @ 30 V dc SPDT IP50 0.59 N -40°C +85°C - Silver Nickel Alloy - 5 x 10^6Operations 0.039N -40 → +85°C
RS-artikelnummer 682-2499
Tillv. art.nrD3V-16-3C4
VarumärkeOmron
24,112 kr
Each (In a Pack of 5)
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Pin Plunger Tab 16 A @ 250 V ac SPST-NO IP40 - -25°C +105°C - Silver Alloy - 10000000Operations - -25 → +105°C
RS-artikelnummer 686-6831
Tillv. art.nrSS-01GL2
VarumärkeOmron
37,84 kr
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Roller Lever Solder 100 mA @ 30 V dc SPDT-NO/NC IP40 0.49 N -25°C +85°C - Gold Alloy - 30000000Operations 0.06N -25 → +85°C
RS-artikelnummer 868-1758
Tillv. art.nrE72-40HT
VarumärkeZF
144,08 kr
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Lever Wire Lead 10.1 A NC, NO - 67 g -40°C 85°C - Silver Alloy Thermoplastic Nylon - - -40 → +85°C
RS-artikelnummer 159-4657
Tillv. art.nrDB1C-C1LD
VarumärkeZF
55,27 kr
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Long Hinge Lever Through Hole 6 A @ 250 V ac SPDT-NO/NC - 0.18 N -40°C +120°C - Gold; Silver Alloy - 15000000Operations - -40 → +120°C
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