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 321-600
Référence fabricant42680
MarqueSaia-Burgess
3,57 €
Each
Unité
Plunger Tab 10 A @ 250 V ac SPST-NC IP40 4.5 N -40°C +85°C - Silver (Stationary); Silver Nickel (Movable) Glass Fibre Reinforced Nylon 10^6Operations 4.8N -40 → +85°C
N° de stock RS 339-904
Référence fabricantBZ-2RD-A2
MarqueHoneywell
16,32 €
Each
Unité
Button Screw 15 A @ 125 V ac SPDT-NO/NC - 3.61 N - - - - - - 1.11N -
N° de stock RS 173-9362
Référence fabricantV3SYR1-UL
MarqueSaia-Burgess
28,04 €
Each (In a Bag of 50)
Unité
Roller Lever Pre-wired 5 A @ 250 V ac SP-NO/NC IP67 2.3 N -40°C +85°C - Silver Glass Fibre Reinforced Nylon 10^6Operations 0.42N -40 → +85°C
N° de stock RS 157-1036
Référence fabricantV4NS
MarqueSaia-Burgess
7,47 €
Each
Unité
Plunger Pre-wired 5 A @ 250 V ac SP-NO/NC IP67 2.5 N -10°C +85°C - Fine Silver Glass Fibre Reinforced Nylon 3 x 10^6Operations 0.3N -10 → +85°C
N° de stock RS 699-0460
Référence fabricantAVT3204
MarquePanasonic
1,34 €
Each
Unité
Pin Plunger Solder 3 A @ 250 V ac SPDT - 0.98 N -25°C +85°C - Silver Nickel Alloy - 5 x 10^5Operations 0.15N -25 → +85°C
N° de stock RS 682-2815
Référence fabricantV-166-1A5(R)
MarqueOmron
3,70 €
Each
Unité
Roller Lever Solder 16 A @ 250 V ac SPDT IP40 1.23 N -25°C +80°C - Silver Alloy Thermoplastic 50000000Operations 0.14N -25 → +80°C
N° de stock RS 472-8308
Référence fabricantV4NST7UL
MarqueSaia-Burgess
5,65 €
Each
Unité
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
N° de stock RS 173-8351
Référence fabricantAVT3204
MarquePanasonic
0,86 €
Each (In a Box of 100)
Unité
Pin Plunger Solder 3 A @ 250 V ac SPDT - 0.98 N -25°C +85°C - Silver Nickel Alloy - 5 x 10^5Operations 0.15N -25 → +85°C
N° de stock RS 159-4411
Référence fabricantD459-V3AA
MarqueZF
2,208 €
Each (In a Pack of 5)
Unité
Button Tab 16 A @ 250 V ac SPDT-NO/NC - 0.98 N -40°C +85°C - Silver Alloy - - - -40 → +85°C
N° de stock RS 325-7805
Référence fabricantV3SYR1-UL
MarqueSaia-Burgess
31,71 €
Each
Unité
Roller Lever Pre-wired 5 A @ 250 V ac SP-NO/NC IP67 2.3 N -40°C +85°C - Silver Glass Fibre Reinforced Nylon 10^6Operations 0.42N -40 → +85°C
N° de stock RS 307-4010
Référence fabricant83 170 902
MarqueCrouzet
3,61 €
Each
Unité
Plunger Solder 100 mA @ 250 V ac SPDT - 0.6 N -20°C +125°C V4 Housing Silver Nickel PET 3 x 10^7Operations 0.1N -20 → +125°C
N° de stock RS 307-4004
Référence fabricant83 170 408
MarqueCrouzet
2,77 €
Each
Unité
Plunger Solder 5 A @ 250 V ac NO/NC - 0.6 N -20°C +125°C - Silver Nickel PET 3 x 10^7Operations 0.1N -20 → +125°C
N° de stock RS 319-4221
Référence fabricantD2MQ-1L
MarqueOmron
3,26 €
Each
Unité
Lever Through Hole 500 mA @ 30 V dc SPDT-NO/NC IP40 0.59 N -15°C +70°C - Silver Plated - 30000Operations 0.08N -15 → +70°C
N° de stock RS 173-9354
Référence fabricant42393
MarqueSaia-Burgess
1,684 €
Each (In a Bag of 500)
Unité
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
N° de stock RS 517-882
Référence fabricantDB1C-D2AA
MarqueZF
3,42 €
Each
Unité
Button Through Hole 6 A @ 250 V ac SPDT-NO/NC - 1.47 N -40°C +120°C - Gold; Silver Alloy - 15000000Operations - -40 → +120°C
N° de stock RS 290-0441
Référence fabricantDB2C-A1RC
MarqueZF
2,49 €
Each
Unité
Roller Lever Solder 10.1 A @ 250 V ac SPDT-NO/NC - 0.93 N -40°C +120°C - Gold; Silver Alloy - 15000000Operations - -40 → +120°C
N° de stock RS 517-886
Référence fabricantDB3C-A1RC
MarqueZF
3,86 €
Each
Unité
Roller Lever Solder 100 mA @ 30 V dc SPDT-NO/NC - 0.54 N -40°C +120°C - Gold; Silver Alloy - 15000000Operations - -40 → +120°C
N° de stock RS 706-4155
Référence fabricantDH2C-B1AA
MarqueZF
4,10 €
Each
Unité
Button Solder 500 mA @ 30 V dc SPDT-NO/NC - 0.88 N -25°C +70°C - Gold Plated Brass - - - -25 → +70°C
N° de stock RS 686-6994
Référence fabricantVX-5-1C22
MarqueOmron
1,90 €
Each
Unité
Pin Plunger Tab 5 A @ 250 V ac SPDT-NO/NC IP40 0.25 N -25°C +80°C - Silver Alloy - 50000000Operations 0.03N -25 → +80°C
N° de stock RS 517-539
Référence fabricantDC2C-K9AA
MarqueZF
3,08 €
Each
Unité
Button Pre-wired 10.1 A @ 250 V ac SPDT-NO/NC IP6K7 3.33 N -40°C +120°C - Silver Alloy - 1000000Operations - -40 → +120°C