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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Description Prix 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
N° de stock RS 804-6219
MarqueRS PRO
3,49 €
Each
Unité
Long Straight Lever Quick Connect 16 A @ 250 V ac SPDT - 400 gms -55 (Environmental)°C +85°C V3 Housing Silver on Copper Glass Filled Thermoplastic 10000000Operations 80gf -55 → +85 (Environmental)°C
N° de stock RS 797-2494
MarqueRS PRO
31,64 €
Each
Unité
Plunger Screw 15 A @ 250 V ac SP-CO IP40 283 gms - - - Fine Silver Metal 1000000Operations 113gf -
N° de stock RS 175-9459
MarqueRS PRO
5,88 €
1 Pack of 1
Paquet(s)
- - - - - - - - - - - - - -
N° de stock RS 175-9562
MarqueRS PRO
6,24 €
1 Pack of 1
Paquet(s)
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N° de stock RS 175-8611
MarqueRS PRO
4,866 €
Each (In a Tray of 20)
Unité
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N° de stock RS 175-8742
MarqueRS PRO
5,508 €
Each (In a Tray of 20)
Unité
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N° de stock RS 797-2570
MarqueRS PRO
8,96 €
Each
Unité
Lever Screw 15 A @ 250 V ac SP-CO - 85 gms - - - Fine Silver Plastic 1000000Operations 14gf -
N° de stock RS 797-2527
MarqueRS PRO
10,70 €
Each
Unité
Pin Plunger Screw 15 A @ 250 V ac SP-CO - 428 gms - - - Fine Silver Plastic 1000000Operations 173gf -
N° de stock RS 175-9450
MarqueRS PRO
5,88 €
1 Pack of 1
Paquet(s)
- - - - - - - - - - - - - -
N° de stock RS 797-2505
MarqueRS PRO
20,52 €
Each
Unité
Plunger Screw 15 A @ 250 V ac SP-CO - 720 gms - - - Fine Silver Metal 1000000Operations 170gf -
N° de stock RS 797-2520
MarqueRS PRO
7,91 €
Each
Unité
Lever Screw 15 A @ 250 V ac SP-CO - 185 gms - - - Fine Silver Plastic 1000000Operations 35gf -
N° de stock RS 804-6199
MarqueRS PRO
12,72 €
Each
Unité
Spring Lever Screw 15 A @ 250 V ac SP - 170 gms - - - Silver - 1000000Operations 21gf -
N° de stock RS 804-6259
MarqueRS PRO
3,80 €
Each
Unité
Long Roller Lever Quick Connect 16 A @ 250 V ac SPDT - 400 gms -55 (Environmental)°C +85°C V3 Housing Silver on Copper Glass Filled Thermoplastic 10000000Operations 25gf -55 → +85 (Environmental)°C
N° de stock RS 175-9611
MarqueRS PRO
5,16 €
1 Pack of 1
Paquet(s)
- - - - - - - - - - - - - -
N° de stock RS 175-9461
MarqueRS PRO
6,24 €
1 Pack of 1
Paquet(s)
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N° de stock RS 175-8739
MarqueRS PRO
6,15 €
Each (In a Tray of 20)
Unité
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N° de stock RS 175-8764
MarqueRS PRO
5,508 €
Each (In a Tray of 20)
Unité
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N° de stock RS 175-9425
MarqueRS PRO
6,60 €
1 Pack of 1
Paquet(s)
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N° de stock RS 175-9613
MarqueRS PRO
5,88 €
1 Pack of 1
Paquet(s)
- - - - - - - - - - - - - -
N° de stock RS 175-9540
MarqueRS PRO
5,16 €
1 Pack of 1
Paquet(s)
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